Chapter VIII: The Growing of the Ornamental Plants—instructions on Particular Kinds (2)
Another fern for house culture is _Nephrolepsis exaltata_. This is no doubt the most easily grown of the list, flourishing in a sitting-room. A variety of _N. exaltata_, called the Boston fern, is a decided addition to this group, having a drooping habit, covering the pot and making a fine stand or bracket plant; and there are now several other forms of it suitable for the best window-gardens.
Several species of pteris, especially _P. serrulata_, are valuable house ferns but require a warmer place than those mentioned above. They will also thrive better in a shady or ill-lighted corner.
Perfect drainage and care in watering have more to do with the successful growing of ferns than any special mixture of soils. If the drainage material in the bottom of the pot or box is sufficient, there is little danger of overwatering; but water-logged soil is always to be avoided. Do not use clay soils. Ferns need protection from the direct sunshine, and also a moist atmosphere. They thrive well in a close glass box, or window-garden, if the conditions can be kept equable.
Freesia.—One of the best and most easily handled tender winter-flowering bulbs; height 12 or 15 inches. The white form _(Freesia refracta alba_) is the best.
The white or yellowish bell-shaped flowers of freesia are produced on slender stalks just above the foliage, to the number of six to eight in a cluster. They are very fragrant, and last for a considerable time when picked. The bulbs are small, and look as though they could not produce a growth of foliage and flowers, but even the smallest mature bulb will prove satisfactory. Several bulbs should be planted together in a pot, box, or pan, in October, if wanted for the holidays, or later if wanted at Easter. The plants bloom from ten to twelve weeks from planting, under ordinary care.
No special treatment is required; keep the plants cool and moist through the growing season. The soil should contain a little sand mixed with fibrous loam, and the pot should be well drained. After flowering, gradually withhold water and the tops will die down, after which the roots may be shaken out and rested until time to plant in fall. Care should be taken to keep them perfectly dry.
The bulbs increase rapidly from offsets. Plants may also be grown from seed, which should be sown as soon as ripe, giving blooming plants the second or third year.
Fuchsia.—Well-known window or greenhouse shrub, treated as an herbaceous subject; many interesting forms; late winter, spring and summer.
Fuchsia is readily grown from cuttings. Soft green wood should be used for cuttings, and it will root in about three weeks, when the cuttings should be potted. Take care not to have them pot-bound while in growth, but do not overpot when bloom is wanted. Given warmth and good soil, they will make fine plants in three months or less. In well-protected, partially shady places they may be planted out, growing into miniature bushes by fall.
Plants may be kept on from year to year; and if the branches are well cut back after blooming, abundant new bloom will come. But it is usually best to make new plants each year from cuttings, since young plants commonly bloom most profusely and demand less care. Fuchsias are amongst the best of window subjects.
Geranium.—What are commonly known as geraniums are, strictly speaking, pelargoniums. (See _Pelargonium_.)
The true geraniums are mostly hardy perennials, and therefore should not be confounded with the tender pelargoniums. Geraniums are worthy a place in a border. They may be transplanted early in the spring, setting them 2 ft. apart. Height 10 to 12 in. The common wild cranesbill _(Geranium maculatum_) improves under cultivation, and is an attractive plant when it stands in front of taller foliage.
Gladiolus.—Of summer and fall-blooming bulbous plants, gladiolus is probably the most widely popular. The colors range from scarlet and purple, to white, rose, and pure yellow. The plants are of slender, erect habit, growing from 2 to 3 feet high.
Gladioli dislike a heavy clay soil. A light loam or sandy soil suits them best. No fresh manure should be added to the soil the year in which they are grown. They should have a new place every year, if possible, and always an open sunny situation.
The corms may be covered 2 inches deep in heavy soils, and 4 to 6 in light soils. They may stand 8 to 10 inches apart, or half this distance for mass effects. For a succession, they may be planted at short intervals, the earliest planting being of smaller corms in the early spring as soon as the soil is dry enough to work; later the larger are to be planted—the last setting being not later than the Fourth of July. This last planting will afford fine late flowers. The plants should be supported by inconspicuous stakes.
The successive plantings may be in the same bed among those set earlier, or they may be grouped in unoccupied nooks, or portions of the border. The plants may stand as close as 6 inches from each other. The earlier planting may be a foot apart to admit of later settings between.
Late in the fall, after frosts and before freezing, the corms are to be dug, cleaned, and dried in the sun and air for a few hours and then stored away in boxes about 2-1/2 inches deep in a cool, dark, and dry place. The tops should be left on, at least till completely shriveled. The varieties are perpetuated and multiplied by the little corms that appear about the base of the large new corm which is formed each year. These small corms may be taken off in the spring and sown thickly in drills. Many of them will make flowering plants by the second season. They are treated like the large corms, in the fall.
Gladioli are easily grown from seed also, but this method cannot be depended on to perpetuate desirable varieties, which can be reproduced only by the cormels. Some of the best flowers may be cross-pollinated, or allowed to form seed in the usual manner; the seed sown thickly in drills, and shaded till the plantlets appear, then carefully cultivated, will afford a crop of small corms in the fall. These may be stored for the winter, like the other young corms, and, like them, many will flower the second season, affording a great variety and quite likely some new and striking kinds. Those that do not flower should be reserved for further trial. They often prove finer than those first to flower.
Early-flowering varieties of gladioli may be forced for late winter or spring bloom.
For bouquets, cut the spike when the lower flowers open; keep in fresh water, cut off the end of the stem frequently, and the other flowers will expand.
Gloxinia.—Choice greenhouse tuberous-rooted, spring and summer-blooming perennials, sometimes seen in window-gardens, but really not adapted to them, although some skillful house-gardeners grow them successfully.
Gloxinias must have a uniform moist and warm atmosphere and protection from the sun. They will not stand abuse or varying conditions. Propagated often by leaf-cuttings, which should give flowering plants in one year. From the leaf, inserted half its length in the soil (or sometimes only the petiole inserted) a tuber arises. This tuber, after resting until midwinter or later, is planted, and flowering plants soon arise.
Gloxinias also grow readily from seeds, which may be germinated in a temperature of about 70°. Flowering plants may be had in August if seeds are sown in late winter, say in early February. This is the usual method. After the bloom is past, the tuber is partially dried off and kept dormant till the following season. It will usually show signs of activity in February or March, when it may be shaken out of the old earth and a little water may then be applied and the amount increased till the plant is in bloom. The same tubers may be bloomed several times.
Success in the growing of gloxinias is largely a matter of proper watering. Keep the dormant tuber just dry enough to prevent shriveling, never trying to force it ahead of its time. Avoid wetting the leaves. Protect from direct sunlight. Protect from draughts on the plants.
Grevillea.—The “she oak,” very graceful greenhouse plant, suitable also for house culture. The plants grow freely from seed, and until they become too large are as decorative as ferns. Grevilleas are really trees, and are valuable in greenhouses and rooms only in their young state. They withstand much abuse. They are now very popular as jardinière subjects. Seeds sown in spring will give handsome plants by the next winter. Discard the plants as soon as they become ragged.
Hollyhocks.—These old garden favorites have been neglected of late years, primarily because the hollyhock rust has been so prevalent, destroying the plants or making them unsightly.
Their culture is very simple. The seed is usually sown in July or August, and the plants set where wanted the following spring. They will bloom the same year in which they are transplanted—the year following the seed-sowing. New plants should be set every two years, as the old crowns are likely to rot or die after the first flowering, or at least to become weak.
Hyacinths (see _Bulbs_) are popular spring-flowering bulbs. Hyacinths are hardy, but they are often used as window or greenhouse plants. They are easy to grow and very satisfactory (Fig. 262).
For winter flowering, the bulbs should be procured early in the fall, potted in October in soil composed of loam, leafmold, and sand. If ordinary flower-pots are used, put in the bottom a few pieces of broken pots, charcoal, or small stones for drainage; then fill the pot with dirt, so that when the bulb is planted, the top will be on a level with the rim of the pot. Fill in around the bulb with soil, leaving just the tip showing. These pots of bulbs should be placed in a cold pit, cellar or on the shady side of a building. In all cases, plunge the pot in some cool material (as cinders). Before the weather becomes cold enough to freeze a crust on the ground, the pots should have a protection of straw or leaves to keep the bulbs from severe freezing. In about six to eight weeks the bulbs should have made roots enough to grow the plant, and the pots may be placed in a cool room for a short time. When the plants have started into growth, they may be placed in a warmer situation. Watering should be carefully attended to from this time, and when the plant is in bloom, the pot may be set in a saucer or other shallow dish containing water. After flowering, the bulbs may be ripened by gradually withholding water until the leaves die. They may then be planted out in the border, where they will bloom each spring for a number of years, but will never prove satisfactory for forcing again.
The open-ground culture of hyacinths is the same as for tulips and other Holland bulbs.
The hyacinth is the most popular of the Dutch bulbs for growing in vases of water. The narcissus may be grown in water, and do just as well, but it is not as attractive in glasses as the hyacinth. Glasses for hyacinths may be had of florists who deal in supplies, and in various shapes and colors. The usual form is tall and narrow, with a cup-like mouth to receive the bulb. They are filled with water, so that it will just reach the base of the bulb when placed in position in the cup or shoulder above. The vessels of dark-colored glass are preferable to those of clear glass, as roots prefer darkness. When the glasses have been filled, they are set away in a cool, dark place, where roots will form, as in potted bulbs. Results are usually secured earlier in water than in soil. To keep the water sweet, a few lumps of charcoal may be put in the glass. As the water evaporates, add fresh; add enough so that it runs over, and thereby renews that in the glass. Do not disturb the roots by taking out the bulb.
Iris includes many handsome perennials, of which the blue flag is familiar to every old-fashioned garden. They are favorites everywhere, for their brilliant spring and summer bloom; and they are easy to grow.
Most irises thrive best in a rather moist soil, and some of them may be colonized in the water in margins of ponds.
Gardeners usually divide them into two sections—the tuberous-rooted or rhizomatous, and the bulbous. A third division—the fibrous-rooted—is sometimes made.
The common and most serviceable species belong to the tuberous-rooted section. Here is the beautiful and varied Japanese iris, _Iris lœvigata_ (or _I. Kœmpferi_), which is among the most deserving of all hardy perennials. Most of these irises need no special care. They are propagated by division of the rootstocks. Plant the pieces one foot apart if a mass effect is desired. When the plants begin to fail, dig them up, divide the roots, discard the old parts, and grow a new stock, as before. The Japanese iris needs much water and a very rich soil. Readily grown from seeds, giving bloom the second year. _I Susiana_, of this section, is one of the oddest of irises, but it is not quite hardy in the North.
Of the bulbous section, most species are not hardy far North. The bulbs should be taken up and replanted every two or three years. The Persian and Spanish irises belong here. The bulbs give rise to but a single stem.
Lily.—Under this name are included bulbous plants of many kinds, not all of them being true lilies. It has been said of this family of plants that it has no “poor relations,” each of them being perfect in itself. Many of the choicest kinds are comparatively unknown, although easy to cultivate. In fact, all of the lilies may be grown with comparative ease in regions where the given species are hardy.
A light, fertile, well-drained soil, mellow to the depth of at least one foot, a handful of sand under each bulb if the soil is inclined to be stiff, and planting so that the crown of the bulb will be at least 4 inches below the surface, are the general requirements. One exception to the depth of planting is _Lilium auratum_, or golden-banded lily. This should be planted deeper—from 8 to 12 inches below the surface—as the new bulbs form over the old one and soon bring the bulbs to the surface if they are not planted deep. Deep working of the ground is always desirable; 18 inches, or even 2 feet, will be none too deep. _L. candidum_ and _L. testaceum_ should be planted in August or September, if possible; but usually lilies are planted in October and November.
For all lilies it is safer to provide good winter protection in the form of a mulch of leaves or manure, and extending beyond the borders of the planting. This should be 5 inches to a foot deep, according to the latitude or locality.
While most lilies profit by partial shade (except _L. candidum_), they should never be planted near or under trees. The shade or protection of tall-growing herbaceous plants is sufficient. In fact, the best results, both as to growth and effect, may be secured by planting amongst low shrubbery or border plants.
Most kinds are the better for remaining undisturbed for a number of years; but if they are to be taken up and divided, or moved to other quarters, they should not be allowed to become dry. The small bulbs, or offsets, may be planted in the border, and if protected, will grow to flowering size in two or three years. In taking up bulbs for division it is best to do so soon after the tops die after blooming. At least this should be done early in the fall, not later than October, giving the plants a chance to become established before freezing weather.
As pot-plants some kinds of lilies are very satisfactory, especially those that may be forced into bloom through the winter. The best kinds for this purpose are _L. Harrisii_ (Easter lily), _L. longiflorum_, and _L. candidum_. Others may be forced with success, but these are the ones most generally used. The winter culture for forcing is practically the same as for hyacinths in pots.
Some of the best kinds of lilies are mentioned below:—
_L. candidum_ (Annunciation lily). White; 3 to 4 feet high; it makes an autumn growth, and should, therefore, be planted in August; set the bulbs from 4 to 6 inches deep.
_L. speciosum_ (_L. lancifolium_), var. _prœcox_. White, tinged with pink; bears several flowers on a stem about 3 feet high.
_L. speciosum_, var. _rubrum_. Rose color, spotted with red.
_L. Brownii_. Flowers white inside, chocolate-colored outside; the stems grow about 3 feet high, bearing from 2 to 4 tubular flowers; not difficult to manage with good protection and drainage; the bulbs are impatient of being kept long out of the ground; after planting, they should not be disturbed as long as they flower well.
_L. maculatum (L. Hansoni)_. Dark yellow; stems 3-4 feet high, each producing 6 to 12 flowers.
_L. testaceum (L. excelsum, L. Isabellinum)_. Rich buff color, with delicate spots; plants about 3 to 5 feet high, with 3 to a dozen flowers on a stem; plant the bulbs in September.
_L. longiflorum_. White; large tubular flowers, 2 to 8 on a stem; height, about 2-1/2 feet.
_L. Batemanniae_ (a form of _L. elegans_). Apricot yellow; 6 to 12 flowers on stems 3 to 4 feet high.
_L. auratum_ (Japanese gold-banded lily). Immense white flowers banded with yellow and dotted with red or purple, from 3 to 12 on a stem; height, 3 to 4 feet; the bulbs need thorough protection, good drainage, and should be planted 10 or 12 inches deep (Fig. 258).
_L. tigrinum_ (Tiger lily). An old favorite, with many drooping bright red spotted flowers; var. _splendens_ is specially good; 3 to 5 ft.
_L. tenuifolium_. Rich scarlet flowers nodding in a raceme or panicle; 1-1/2 to 2 ft.
_L. Maximowiczii (L. Leichtlinii)_. Flowers clear yellow, with small, dark spots, 10 to 12 on a stem; height, 4 feet.
_L. monadelphum_. Yellow tubular-shaped flowers in clusters of 6 to a dozen or more; stems 2-1/2 feet tall.
_L. elegans (L. Thunbergianum_), var. _Alice Wilson_. Lemon-yellow; stems 2 feet high, bearing 2 to 8 flowers.
_L. elegans_, var. _fulgens atrosanguineum_. Dark crimson; height, 1 foot.
Lily-of-the-valley.—A perfectly hardy little perennial, bearing racemes of small, white, bell-shaped flowers in early spring; and also much forced by florists.
For ordinary cultivation, sods or mats of roots may be dug from any place in which the plant is colonized. Usually it thrives best in partial shade; and the leaves make an attractive mat on the north side of a building, or other shady place, in which grass will not grow. The plants will take care of themselves year after year. Better results may be expected from good commercial roots. The “pips” may be planted any time from November on, from 3 to 6 inches apart.
For forcing indoors, imported roots or “pips” are used, as the plants are grown for this particular purpose in parts of Europe. These roots may be planted in pots, and treated as recommended for winter-flowering bulbs. Florists force them in greater heat, however, often giving them a bottom heat of 80° or 90°; but skill and experience are required in order to attain uniformly good results in this case.
Mignonette.—Probably no flower is more generally grown for its fragrance than the mignonette. It is a half-hardy annual, thriving either in the open or under glass.
The mignonette needs a cool soil, only moderately rich, shade part of the day, and careful attention to cutting the flower-stalks before the seeds are ripe. If a sowing be made in late April, followed by a second sowing in early July, the season may be extended until severe frosts. There are few flowers that will prove as disappointing if the simple treatment it needs is omitted. Height, 1 to 2 feet.
It may be sown in pots late in summer and be had in the house in winter.
Moon-flowers are species of the morning-glory family that open their flowers at night. A well-grown plant trained over a porch trellis, or allowed to grow at random over a low tree or shrub, is a striking object when in full flower at dusk or through a moonlit evening. In the Southern states (where it is much grown) the moon-flower is a perennial, but even when well protected does not survive the winters in the North.
Cuttings usually give best results in the Northern states, as the seasons are not long enough for seed plants to give good bloom. Cuttings may be made before danger of frost and wintered in the house, or the plants may be grown from seed sown in January or February. Seeds should be scalded or filed just before sowing.
The true moon-flower is _Ipomœa Bona-Nox_ white-flowered; but there are other kinds that go under this name. This grows 20 to 30 feet where the seasons are long enough.
Narcissus (see _Bulbs_).—Daffodils, jonquils, and the poet’s narcissus all belong to this group, and many of them are perfectly hardy. The polyanthus section, which includes the Paper-white narcissus and sacred lily or Chinese joss-flower, are not hardy except with unusually good protection, and are, therefore, most suitable for growing indoors.
It is common to allow the hardy sorts to take care of themselves when once planted. This they will do, but much more satisfactory results will be had by lifting and dividing the clumps every three or four years. A single bulb in a few years forms a large clump. In this condition the bulbs are not properly nourished, and consequently do not flower well. Lifting is preferably done in August or September, when the foliage has died down and the bulbs are ripe.
The narcissi are well suited to partially shaded places, and will grow and please wherever good taste may place them. They should be freely used, as they are fragrant, bright of color, and easily managed—growing among shrubbery, trees, and in places where other flowers would refuse to grow. They should be planted in clumps or masses, in September or October, setting the bulbs 5 to 8 inches apart, according to size, and 3 or 4 inches deep.
Several species and numberless varieties, both double and single, are grown. A few good types only can be mentioned (Fig. 260):—
_Daffodils, or Trumpet narcissus (Narcissus Pseudo-Narcissus_ and derivatives).
_Single-flowered, Yellow_.—Golden Spur, Trumpet Major, Van Sion.
_White_.—Albicans.
_White and Yellow_.—Empress, Horsefieldi.
_Double-flowering, Yellow_.—Incomparable fl. pl., Van Sion.
_White_.—Alba plena odorata.
_Poet’s narcissus (N. poeticus_). Flowers white, with yellow cups edged crimson. Very fragrant.
_Jonquils (N. Jonquilla_). These have very fragrant yellow flowers, both double and single, and are old garden favorites.
_Polyanthus narcissus (N. Tazetta_). These include paper-white, Chinese sacred lily (var. _orientalis_), and others.
_Primrose Peerless (N. biflorus_).
Narcissi may be forced into flower through the winter, as described on p. 345. A popular kind for winter bloom is the so-called Chinese sacred lily. This grows in water without any soil whatever. Secure a bowl or glass dish, about three times the size of the bulb; put some pretty stones in the bottom; set in the bulb and build up around it with stones so as to hold it stiff when the leaves have grown; tuck two or three small pieces of charcoal among the stones to keep the water sweet, then fill up the dish with water and add a little every few days, as it evaporates. Set the dish in a warm, light place. In about six weeks the fragrant, fine white flowers will fill the room with perfume. The Paper-white, closely allied to this, is also forced, and is one of the few good bulbs that may be bloomed before Christmas. The Van Sions, single and double (a form of daffodil), are also much forced.
Oleander.—An old favorite shrub for the window-garden, and much planted in the open far South.
While there are many named varieties of the oleander, but two are often seen in general cultivation. These are the common red and white varieties. Both these, as well as the named varieties, are of easy management and well adapted to home culture, growing in pots or tubs for several years without special care. Well-grown specimens are very effective as porch or lawn plants, or may be used to good advantage in mixed beds of tall-growing plants, plunging the pot or tub to the rim in the soil. The plants should be cut back after flowering. They should be rested in any out-of-the-way place through the winter. When brought out in the spring, they should be given sun and air in order to make a sturdy growth.
Propagation is effected by using well-ripened wood for cuttings, placed in a close frame; or the slips may be rooted in a bottle or can of water, care being taken to supply water as evaporation takes place. After being rooted, they may be potted, using soil with a large proportion of sand. Well-established plants may be repotted in good loam and well-rotted manure. They should bloom the second year.
Oxalis.—A number of hardy species of oxalis are excellent plants for rock-work and edging. The greenhouse species are very showy, growing without extra care, and blooming freely through the late winter and spring months and some of them make excellent window-gardening subjects.
The house species are mostly increased by bulbs, a few by division of the root. _O. violacea_ is, one of the commonest of house-plants. Give a sunny window, for the flowers open only in sun or very bright light. The bulbous (tuberous) kinds are treated much as recommended for _Bulbs_, except that the bulbs must not freeze. The tubers are started in August or September for winter bloom. It is best to use deep pots, or the tubers will throw themselves out. The crown should be near the surface. After flowering, the bulbs are dried off and kept until new bloom is wanted.
The “Bermuda buttercup” is _O. lutea_ and _O. flava_ of gardens (properly _O. cernua_); it is a Cape of Good Hope species. Its culture is not peculiar.
Palms.—No more graceful plants for room decoration can be found than well-grown specimens of some species of palms. Most florists’ palms are well adapted for this purpose when small, and as the growth is usually very slow, a plant may be used for many years.
Palm plants thrive best in partial shade. One of the frequent causes of failure in the culture of the palm is the overpotting and subsequent overwatering. A palm should not be repotted until the mass of roots fills the soil and preferably when it is active; then a pot only a size larger should be used. Use ample drainage in the bottom to carry off excess of water. Although the plants need a moist soil, water standing at the roots proves injurious. Withhold free use of water when the plants are partially dormant.
A soil composed of well-rotted sod, leafmold, and a little sand will meet the requirements.
Under ordinary living-room conditions, palms are subject to much abuse. Water is allowed to stand in the jardinière, the plant is kept in dark corners and hallways, the air is dry, and scale is allowed to infest the leaves. If the plant begins to fail, the housewife is likely to repot it or to give it more water, both of which may be wrong. The addition of bone-meal or other fertilizer may be better than repotting. Keep the plant in good light (but not in direct sunlight) as much as possible. Sponge the leaves to remove dust and scale, using soapsuds. When a new leaf begins to appear, add bone-meal to make it grow vigorously.
Among the best palms for house culture are arecas, _Cocos Weddelliana,_ latania, kentia, howea, caryota, chamærops, and phœnix. Cycas may also be regarded as a palm.
The date palm may be grown from seed of the common commercial date. Seed of the other varieties may be purchased from leading seedsmen; but, as the seed germinates only under favorable conditions, and the palm is a very slow-growing plant while young, the best plan is to purchase the plants from a dealer when wanted. When the plants become weak or diseased, take them to a florist for treatment and recuperation, or purchase new ones. Sometimes the florist places two or three small palms in one pot, making a very satisfactory table piece for two or three years.
It is well to set the palms out of doors in the summer, plunging the pots nearly or quite to the rim. Turn or lift the pots occasionally so that the roots will not strike through into the earth. Choose a partially shaded place, where the hot sun will not strike them directly and where the wind will not injure them.
Pandanus, or screw pine.—The screw pines are stiff-leaved saw-edged plants often grown in window-gardens and used for porch decoration.
The _Pandanus utilis_ and _P. Veitchii_ (the latter striped-leaved or white-leaved) are exceedingly ornamental, and are well adapted to house culture. The singular habit of growth, bright glossy leaves, and the ability to withstand the dust and shade of a dwelling room, make them a desirable addition to the house collection.
They are propagated by the offsets or young plants that grow around the base of the trunk; or they may be increased by seed. If by the former method, the offsets should be cut off and set in sand, at a temperature of 65° or 70°. The cuttings root slowly and the plants for a time make very slow growth. The general cultural treatment is that of palms. Give abundance of water in summer.
Pansy (Fig. 244) is without doubt the most popular hardy spring flower in cultivation. The strains of seed are many, each containing great possibilities.
The culture is simple and the results are sure. Seed sown in August or September, in boxes or a frame, will make plants large enough to reset in November (three or four inches apart) and bloom the following March; or they may be left until March in open seed-beds before setting out. Also, if they are sown very thinly in the frames, they may remain undisturbed through the winter, blooming very early the following spring. The frames should be protected by mats, boards, or other covering through the severe cold, and as the sun gains strength, care should be taken to keep them from heaving by alternate thawing and freezing. Seed sown in boxes in January or February will make fine blooming plants by April, taking the place of those blooming earlier.
The pansy is generally mentioned with plants suitable for partial shade, but it also thrives in other localities, especially where the sun is not very hot nor the weather very dry. The requisites for satisfactory pansy culture are fertile, moist, cool soil, protection from the noonday sun, and attention to keeping plants from going to seed. As the ground becomes warm, a mulch of leafmold or other light material should be spread over the bed to retain moisture and exclude heat. Spring and fall give the best bloom. In hot summer weather the flowers become small.
Pelargonium.—To this genus belong the plants known as geraniums—the most satisfactory of house-plants, and extensively used as bedding plants. No plants will give better returns in leaf and flower; and these features, added to the ease of propagation, make them general favorites. The common geranium is one of the few plants that can be bloomed at any time of the year.
There are several main groups of pelargoniums, as the common “fish geraniums” (from the odor of the foliage), the “show” or Lady Washington pelargoniums, the ivy geraniums, the thin-leaved bedders (as Madame Salleroi), and the “rose” geraniums.
Cuttings of partially ripened wood of all pelargoniums root very easily, grow to blooming size in a short time, and, either planted out or grown in a pot, make fine decorations. The common or fish geraniums are much more satisfactory when not more than a year old. Take cuttings from the old plants at least once a year. In four or five months the young plants begin to bloom. Plants may be taken up from the garden and potted, but they rarely give as much satisfaction as young, vigorous subjects; new plants should be grown every year. Repot frequently until they are in 4-to 5-inch pots; then let them bloom.
The show pelargoniums have but one period of bloom, usually in April, but they make up in size and coloring. This section is more difficult to manage as house-plants than the common geranium, needing more direct light to keep it stocky, and being troubled by insects. Still, all the trouble taken to grow the plants will be well repaid by the handsome blossoms. Take cuttings in late spring, after flowering, and blooming plants may be had the following year. Good results are sometimes secured by keeping these plants two or three years. Cut back after each blooming season.
For house culture the geraniums need a fertile, fibrous loam, with the addition of a little sand; good drainage is also an essential.
Peony.—The herbaceous peony has long had a place in the garden; it has now been much improved and constitutes one of the very best plants known to cultivation. It is perfectly hardy, and free from the many diseases and insects that attack so many plants. It continues to bloom year after year without renewal, if the soil is well prepared and fertile. Fig. 250.
Inasmuch as the peony is such a strong grower and produces so many enormous flowers, it must have a soil that can supply abundant plant-food and moisture. The old-fashioned single and semi-double comparatively small-flowered kinds will give good results in any ordinary ground, but the newer highly improved sorts must be given better treatment. This is one of the plants that profit by a very rich soil. The place should be very deeply plowed or else trenched; and if the land is in sod or is not in good heart, the preparation should begin the season before the peonies are planted. A deep moist loam suits them best; and as the plants grow and bloom, add bone meal and top-dress with manure. When making their growth and when in bloom, they should not be allowed to want for water.
In purchasing peony roots, be careful to secure only well-grown and selected stock. Cheap stock, job lots, and odds and ends are likely to be very disappointing.
The plants may be set in fall or spring, the latter being preferable in the North. Cover the crown bud 2 or 3 inches, being careful not to injure it. If the best blooms are desired, give plenty of room, as much as 3 x 4 feet. Peonies grow 2 to 3 feet or even more in height. Strong roots of some varieties will give bloom the first year; considerable bloom will come the second year; but the full bloom on most varieties should not be expected before the third year. The flowers may be brightened and their duration prolonged by partial shade while in bloom.
If old plants become weak, or if they drop their buds, dig them up and see whether the roots are not more or less dead and decayed; divide to fresh parts and replant in well-enriched ground; or purchase new plants.
Peonies are propagated by division of the roots in early fall, one good strong eye being left to each piece.
The peony has merit for its foliage as well as for its bloom, particularly when the soil is rich and the growth luxuriant. This value of the plant is commonly overlooked. The peony deserves its popularity.
Phlox.—Garden phloxes are of two kinds, the annual and perennial. Both are most valuable.
Excepting the petunia, no plant will give the profusion of bloom with as little care as the annual phlox _(Phlox Drummondii_). For clear and brilliant colors, the many varieties of this are certainly unrivaled. The dwarf kinds are the more desirable for ribbon-beds, as they are not so “leggy.” There are whites, pinks, reds, and variegated of the most dazzling brilliancy. The dwarfs grow ten inches high, and bloom continuously. Set them 8 inches apart in good soil. Seed may be sown in the open ground in May, or for early plants, in the hotbed in March. They may be sown close in the fall if sown very late, so that the seeds will not start till spring.
The perennial phlox of the gardens has been developed from the native species, _Phlox paniculata_ and P. _maculata_. The garden forms are often collectively known under the name of _P. decussata_. In recent years the perennial phlox has been much improved, and it now constitutes one of the best of all flower-garden subjects. It grows three feet tall, and bears a profusion of fine flowers in heavy trusses in mid-summer to fall. Figs. 246, 248.
Perennial phlox is of easy culture. The important point is that the plants begin to fail of best bloom about the third year, and they are likely to become diseased; and new plantings should be made if the strongest flowers are desired. The plants may be taken up in fall, the roots divided and cleaned of dead and weak parts, and the pieces replanted. Usually, however, the beginner will secure more satisfaction in purchasing new cutting-grown plants. This phlox propagates readily by seed, and if one does not care to perpetuate the particular variety, he will find much satisfaction in raising seedlings. Some varieties “come true” from seed with fair regularity. Seedlings should bloom the second year.
Fertile garden soil of any kind should raise good perennial phlox. See that the plants do not want for water or plant-food at blooming time. Liquid manure will often help to keep them going. If they are likely to suffer for water when in bloom, wet the ground well every evening.
If the leading shoots are pinched off early in the season, and again in midsummer, the bloom will be later, perhaps in September rather than in July.
Primulas, or primroses, are of various kinds, some being border plants, but mostly known in this country as greenhouse and window-garden subjects. One of them is the auricula. The true or English cowslip is one of the hardy border plants; also the plants commonly known as polyanthus.
Common hardy primulas (or polyanthus and related forms) grow 6 to 10 inches high, sending up trusses of yellow and red flowers in early spring. Propagated by division, or by seed sown a year before the plants are wanted. Give them rather moist soil.
The primula of the winter-garden is mostly the _P. Sinensis_ (Chinese Primrose), grown very extensively by florists as a Christmas plant. With the exception of the full double varieties, it is usually grown from seed. There is a popular single form known as _P. stellata_. The seed of Chinese primulas sown in March or April will make large flowering plants by November or December, if the young plants are shifted to larger pots as needed. The seed should be sown on the flat surface of the soil, composed of equal parts loam, leafmold, and sand. The seed should be pressed down lightly and the soil watered carefully to prevent the seed from being washed into the soil. Very fine sphagnum moss may be sifted over the seed, or the box set in a moist place, where the soil will remain wet until the seeds germinate. When the plants are large enough, they should be potted separately or pricked out into shallow boxes. Frequent pottings or transplantings should be given until September, when they should be in the pots in which they are to bloom. The two essentials to successful growth through the hot summer are shade and moisture. Height, 6 to 8 inches. Bloom in winter and spring.
At present the “baby Primrose” (_Primula Forbesi_) is popular. It is treated in essentially the same way as the Sinensis. The obconica (_P. obconica_) in several forms is a popular florist’s plant, but is not much used in window-gardens. The hairs poison the hands of some persons. Culture practically as for _P. Sinensis_.
All primulas are impatient of a dry atmosphere and fluctuating conditions.
Rhododendrons are broad-leaved evergreen shrubs that are admirably adapted to producing strong planting effects. Some of them are hardy in the Northern states.
Rhododendrons require a fibrous or peaty soil and protection from bleak winds and bright suns in summer and winter. A northern or somewhat shady exposure, to break the force of the midday sun, is advisable; but they should not be planted where large trees will sap the fertility and moisture from the ground. They protect each other if grown in masses, and also produce better planting effects.
XIX. Pyracantha in fruit. One of the best ornamental-fruited plants for the middle and milder latitudes. XIX. Pyracantha in fruit. One of the best ornamental-fruited plants for the middle and milder latitudes.
They require a deep, fibrous earth, and it is supposed that they do not thrive in limestone soils or where wood ashes are freely used. While rhododendrons will sometimes succeed without any special preparation of the ground, it is advisable to take particular pains in this regard. It is well to dig a hole 2 or 3 feet deep, and fill it with earth compounded of leafmold, well-rotted sod, and peat. The moisture supply should be never failing, for they suffer from drought. They should be mulched summer and winter. Plant in spring.
The hardy garden forms are derivatives of _Rhododendron Catawbiense_, of the southern Appalachian Mountains. The Pontica and other forms are not hardy in the North.
The “great laurel” of the northern United States is _Rhododendron maximum_. This has been extensively colonized in large grounds by being removed from the wild in carload lots. When the native conditions are imitated, it makes unusually good mass planting. Like all rhododendrons it is impatient of drought, hard soil, and full exposure to midday sun. This species is valued for its foliage and habit more than for its bloom. The wild form of _R. Catawbiense_ is also transferred to grounds in large quantities.
Rose.—No home property is complete without roses. There are so many kinds and classes that varieties may be found for almost any purpose, from climbing or pillar subjects to highly fragrant teas, great hybrid perpetuals, free-blooming bedders, and good foliage subjects for the shrubbery. There is no flower in the growing of which one so quickly develops the temper and taste of the connoisseur.
Roses are essentially flower-garden subjects rather than lawn subjects, since flowers are their chief beauty. Yet the foliage of many of the highly developed roses is good and attractive when the plants are well grown. To secure the best results with roses, they should be placed in a bed by themselves, where they can be tilled and pruned and well taken care of, as other flower-garden plants are. The ordinary garden roses should rarely be grown in mixed borders of shrubbery. It is usually most satisfactory also to make beds of one variety rather than to mix them with several varieties.
If it is desired to have roses in mixed shrubbery borders, then the single and informal types should be chosen. The best of all these is _Rosa rugosa_. This has not only attractive flowers through the greater part of the season, but it also has very interesting foliage and a striking habit. The great profusion of bristles and spines gives it an individual and strong character. Even without the flowers, it is valuable to add character and cast to a foliage mass. The foliage is not attacked by insects or fungi, but remains green and glossy throughout the year. The fruit is also very large and showy, and persists on bushes well through the winter. Some of the wild roses are also very excellent for mixing into foliage masses, but, as a rule, their foliage characteristics are rather weak, and they are liable to be attacked by thrips.
There are so many classes of roses that the intending planter is likely to be confused unless he knows what they are. Different classes require different treatment. Some of them, as the teas and hybrid perpetuals (the latter also known as remontants), bloom from new canes; while the rugosa, the Austrian, Harrison’s yellow, sweet briers, and some others are bushes and do not renew themselves each year from the crown or bases of the canes.
The outdoor roses may be divided into two great groups so far as their blooming habit is involved:
(1) The continuous or intermittent bloomers, as the hybrid perpetuals (blooming chiefly in June), bourbons, tea, rugosa, the teas and hybrid teas being the most continuous in bloom;
(2)those that bloom once only, in summer, as Austrian, Ayrshire, sweet briers, prairie, Cherokee, Banksian, provence, most moss roses, damask, multiflora, polyantha, and memorial _(Wichuraiana)._ “Perpetual” or recurrent-blooming races have been developed in the Ayrshire, moss, polyantha, and others.
While roses delight in a sunny exposure, nevertheless our dry atmosphere and hot summers are sometimes trying on the flowers, as are severe wintry winds on the plants. While, therefore, it is never advisable to plant roses near large trees, or where they will be overshadowed by buildings or surrounding shrubbery, some shade during the heat of the day will be a benefit. The best position is an eastern or northern slope, and where fences or other objects will break the force of strong winds, in those sections where such prevail.
Roses should be carefully taken up every four or five years, tops and roots cut in, and then reset, either in a new place or in the old, after enriching the soil with a fresh supply of manure, and deeply spading it over. In Holland, roses are allowed to stand about eight years. They are then taken out and their places filled with young plants.
_Soil and planting for roses_.
The best soil for roses is a deep and rich clay loam. If it is more or less of a fibrous character from the presence of grass roots, as is the case with newly plowed sod ground, so much the better. While such is desirable, any ordinary soil will answer, provided it is well manured. Cow manure is strong and lasting, and has no heating effect. It will cause no damage, even if not rotted. Horse manure, however, should be well rotted before mixing it with the soil. The manure may be mixed in the soil at the rate of one part in four. If well rotted, however, more will not do any damage, as the soil can scarcely be made too rich, especially for the everblooming (hybrid tea) roses. Care should be taken to mix the manure thoroughly with the earth, and not to plant the roses against the manure.
In planting, care must be taken to avoid exposing the roots to the drying of sun and air. If dormant field-grown plants have been purchased, all broken and bruised roots will need to be cut off smoothly and squarely. The tops also will need cutting back. The cut should always be made just above a bud, preferably on the outer side of the cane. Strong-growing sorts may be cut back one-fourth or one-half, according as they have good or bad roots. Weaker-growing kinds, as most of the everblooming roses, should be cut back-most severely. In both cases it is well to remove the weak growth first. Plants set out from pots will usually not need cutting back.
Hardy roses, especially the strong field-grown plants, should be set in the early fall if practicable. It is desirable to get them out just as soon as they have shed their foliage. If not then, they may be planted in the early spring. At that season it is advisable to plant them as early as the ground is dry enough, and before the buds have started to grow. Dormant pot-plants may also be set out early, but they should be perfectly inactive. Setting them out early in this condition is preferable to waiting till they are in foliage and full bloom, as is so often required by buyers. Growing pot-plants may be planted any time in spring after danger of frost is past, or even during the summer, if they are watered and shaded for a few days.
Open-ground plants should be set about as deep as they stood previously, excepting budded or grafted plants, which should be set so that the union of the stock and graft will be 2 to 4 inches below the surface of the ground. Plants from pots may also be set an inch deeper than they stood in the pots. The soil should be in a friable condition. Roses should have the soil compact immediately about their roots; but we should distinguish between planting roses and setting fence posts. The dryer the soil the more firmly it may be pressed.
As a general statement, it may be said that roses on their own roots will prove more satisfactory for the general run of planters than budded stock. On own-rooted stock, the suckers or shoots from below the surface of the soil will be of the same kind, whereas with budded roses there is danger of the stock (usually Manetti or dog rose) starting into growth and, not being discovered, outgrowing the bud, taking possession, and finally killing out the weaker growth. Still, if the plants are set deep enough to prevent adventitious buds of the stock from starting and the grower is alert, this difficulty is reduced to a minimum. There is no question but that finer roses may be grown than from plants on their own roots, withstanding the heat of the American summer, if the grower takes the proper precautions.
_Pruning roses_.
In pruning roses, determine whether they bloom on canes arising each year from the ground or near the ground, or whether they make perennial tops; also form a clear idea whether an abundance of flowers is wanted for garden effects, or whether large specimen blooms are desired.
If one is pruning the hybrid perpetual or remontant roses (which are now the common garden roses), he cuts back all very vigorous canes perhaps one-half their length immediately after the June bloom is past in order to produce new, strong shoots for fall flowering, and also to make good bottoms for the next year’s bloom. Very severe summer pruning, however, is likely to produce too much leafy growth. In the fall, all canes may be shortened to 3 feet, four or five of the best canes being left to each plant. In spring, these canes are again cut back to fresh wood, leaving perhaps four or five good buds on each cane; from these buds the flowering canes of the year are to come. If it is desired to secure fewer blooms, but of the best size and quality, fewer canes may be left and only two or three new shoots be allowed to spring from each one the next spring.
The rule in trimming all cane-bearing roses is, _cut back weak growing kinds severely; strong growers moderately_.
Climbing and pillar roses need only the weak branches and the tips shortened in. Other hardy kinds will usually need cutting back about one-fourth or one-third, according to the vigor of the branches, either in the spring or fall.
The everblooming or hybrid tea roses will need to have all dead wood removed at the time of uncovering them in spring. Some pruning during the summer is also useful in encouraging growth and flowers. The stronger branches that have flowered may be cut back one-half or more.
The sweet briers, Austrian and rugosas may be kept in bush form; but the trunks may be cut out at the ground every two or three years, new shoots having been allowed to come up in the meantime. All rampant growths should be cut back or taken out.
_Insects and diseases of roses_.
Most of the summer insects that trouble the rose are best treated by a forceful spray of clear water. This should be done early in the day and again at evening. Those having city water or good spray pumps will find this an easy method of keeping rose pests in check. Those without these facilities may use whale-oil soap, fir-tree oil, good soap suds, the tobacco preparations, or Persian insect powder.
The rose-bug or chafer should be hand-picked or knocked off early in the morning into a pan of coal oil. The leaf-roller must be crushed.
The mildews are controlled by the various sulfur sprays.
_Winter protection of roses_.
All garden roses should be well mulched with leaves or coarse manure in the fall. Mounding earth about the root also affords excellent protection. Bending over the tops and covering with grass or evergreen boughs is also to be recommended for such kinds as are suspected to be injured by winter; the boughs are preferable because they do not attract mice.
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Manual of Gardening (Second Edition)Chapter VIII: The Growing of the Ornamental Plants—instructions on Particular Kinds (2)
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