Chapter M (1)

Madia.--A hardy annual of a rather handsome order. The seed should be sown in May in a shady situation. The plant is not particular as to soil, and will flower about eight weeks after it is sown, and continue to bloom during August and September. Height, 11/2 ft.

Magnolia Grandiflora.--A handsome, hardy evergreen, with large shining, Laurel-shaped leaves, and highly-scented, Tulip-shaped white flowers. A noble plant for a spacious frontage, but in most places requires to be grown on a wall. It flourishes in any damp soil, and is increased by layers. Flowers in August. Height, 20 ft.

Mahonia.--Handsome evergreen shrubs, useful for covert planting or for grouping with others. They grow best in a compost of sand, peat, and loam, and may be propagated by cuttings or by layers of ripened wood, laid down in autumn. They flower in April. Height, 4 ft. to 6 ft.

Maianthemum Bifolium.--The flowers of this hardy perennial are produced in April and May, and somewhat resemble miniature Lily of the Valley. Seed may be sown at the end of July. The plant will grow in any soil, but delights in partial shade. Height, 6 in.

Maize.--_See_ "Zea."

Malope.--Very beautiful hardy annuals having soft leaves. They may be raised from seed sown in April in any garden soil. They bloom in June or July. Height, 11/2 ft. to 2 ft.

Malva.--Very ornamental plants, more especially the greenhouse varieties. The hardy perennials succeed in any good garden soil, and are increased by seed sown in the autumn, or by division of the root. The greenhouse kinds should be grown in rich earth: these are propagated by cuttings planted in light soil. The annuals are poor plants. Some of the varieties bloom in June, others in August. Height, 2 ft.

Mandevillea Suaveolens.--A fine climbing plant bearing very sweet white flowers in June. It is rather tender, and more suitable for the conservatory than the open air. It does not make a good pot-plant, but finds a suitable home in the border of the conservatory in equal parts of peat and sandy loam. In pruning adopt the same method as for the vine or other plants which bear flowers on wood of the same year's growth. It is propagated by seed sown in heat, or by cuttings under glass. Syringe the leaves daily during the hot season. A temperature of from 40 to 50 degrees in winter, and from 55 to 65 degrees in summer should be maintained. Height, 10 ft.

Manures.--One of the best fertilisers of the soil is made by saturating charred wood with urine. This may be drilled in with seeds in a dry state. For old gardens liquid manure is preferable to stable manure, and if lime or chalk be added it will keep in good heart for years without becoming too rich. A good manure is made by mixing 64 bushels of lime with 2 cwts. of salt. This is sufficient for one acre. It should be forked in directly it is put upon the ground. Superphosphate of lime mixed with a small amount of nitrate of soda and forked into the ground is also a fine manure, but is more expensive than that made from lime and salt. Charred cow-dung is ready for immediate use. For established fruit-trees use, in showery weather, equal quantities of muriate of potash and nitrate of soda, scattering 1 oz. to the square yard round the roots. Peruvian guano, in the proportion of 1 oz. to each gallon of water, is a very powerful and rapid fertiliser. In whatever form manure is given, whether in a dry or liquid form, care must be taken not to administer it in excessive quantities, for too strong a stimulant is as injurious as none at all. In ordinary cases loam with a fourth part leaf-mould is strong enough for potting purposes; and no liquid except plain water should be given until the plants have been established some time. For roses, rhubarb, and plants that have occupied the same ground for a considerable time, mix 1 lb. of superphosphate of lime with 1/2 lb. of guano and 20 gallons of water, and pour 2 or 3 gallons round each root every third day while the plants are in vigorous growth. Herbaceous plants are better without manure. Liquid manure should be of the same colour as light ale.

Maple.--_See_ "Acer."

Marguerites (_Chrysanthemums Frutescens_).--The White Paris Daisies are very effective when placed against scarlet Geraniums or other brightly-coloured flowers, and likewise make fine pot-plants. They will grow in any light soil, and merely require the same treatment as other half-hardy perennials. Height, 1 ft. (_See also_ "Anthemis" _and_ "Buphthalmum.")

Margyricarpus Setosus (_Bristly Pearl Fruit_).--A charming little evergreen, of procumbent growth, bearing throughout the whole summer a number of berries on the main branches. Being only half-hardy, it requires protection from frost, but in the warmer weather it may be planted on rock-work in sandy loam and vegetable mould. Cuttings planted in moist peat under a hand-glass will strike, or it may be propagated by layers. Height, 6 in.

Marigolds.--Handsome and free-flowering half-hardy annuals. The greenhouse varieties thrive in a mixture of loam and peat, and cuttings root easily if planted in sand under glass. The African and tall French varieties make a fine display when planted in shrubberies or large beds, while the dwarf French kinds are very effective in the foreground of taller plants, or in beds by themselves. They are raised from seed sown in a slight heat in March, and planted out at the end of May in any good soil. Height, 6 in. to 2 ft. (_See also_ "Calendula," "Tagetes," _and_ "Calthus.")

Martynia.--Handsome half-hardy, fragrant annuals. The seed should be sown on a hotbed in March. When the plants are sufficiently advanced transplant them singly into pots of light, rich earth, and keep them in the stove or greenhouse, where they will flower in June. Height, 11/2 ft.

Marvel of Peru (_Mirabilis_).--Half-hardy perennials, which are very handsome when in flower, and adorn equally the greenhouse or the open. They may be increased by seed sown in light soil in July or August and planted out in the border in spring. At the approach of frost take the roots up and store them in dry ashes or sand. They flower in July. Height, 2 ft.

Massonia.--Singular plants, which to grow to perfection should be placed in a mixture of loam, peat, and sand. They require no water while in a dormant state, and may be increased by seed or by off-sets from the bulbs. Height, 3 in. to 6 in.

Mathiola.--_See_ "Stocks."

Mathiola Bicornis (_Night-scented Stocks_).--A favourite hardy annual whose lilac flowers are fragrant towards evening. They may be grown from seed sown between February and May on any ordinary soil. Height, 1 ft.

Matricaria.--This is a half-hardy annual of little interest so far as its flowers are concerned, and is mostly grown as a foliage plant. The seed should be sown in a frame in March, and transplanted at the end of May. Height, 1 ft.

Maurandia Barclayana.--This elegant twining plant is best grown in pots, so that it can more conveniently be taken indoors in the winter. The soil should be light and rich. Cuttings can be taken either in spring or autumn, or it may be raised from seed. It does very well in the open during the summer, placed against a wall or trellis-work, but will not stand the cold. In the greenhouse it reaches perfection, and blooms in July. Height, 10 ft.

Mazus Pumilio.--A pretty diminutive herbaceous plant. When grown in peat and sand in an open situation it survives from year to year, but it will not live through the winter in cold clay soils. Its pale green foliage is seen to advantage in carpet bedding, and its branched violet flowers, put forth from June to September, make it a desirable rock-work plant. It may be increased by transplanting, at the end of April, the rooted stems which run under the surface of the ground.

Meconopsis Cambrica(_Welsh Poppy_).--An ornamental hardy perennial, often found on English rocks. It may be grown in any light, rich soil, is easily raised from seed, and blooms in June. Height, 1-1/2 ft.

Medlars.--These trees will grow on any well-drained soil. The Dutch Medlar is most prized, as it bears the largest fruit. It is raised from seed, and usually trained to a standard form. The Nottingham and Royal are also excellent varieties. Any special variety may be grafted on to the seedlings. On deep soils it is best grafted on the Pear stock; on light, sandy soil it may be grafted on the White Thorn. No pruning is required, beyond cutting away cross-growing branches.

Megasea.--This hardy herbaceous plant flowers from April to June. A light, sandy soil suits it best. It may be grown from seed or multiplied by division. Height, 1 ft.

Melissa Officinalis.--A hardy perennial, flowering in July. Any soil suits it. It is increased by division of the root. Height, 1 ft.

Melittis Melissophyllum (_Large-flowered Bastard Balm_).--This handsome perennial is not often seen, but it deserves to be more generally grown, especially as it will thrive in almost any soil; but to grow it to perfection, it should be planted in rich loam. It flowers from June to August, and may be increased by division of the roots any time after the latter month. Height, 11/2 ft.

Melon.--Sow from January to June in pots plunged in a hotbed, the temperature of which should not be under 80 degrees. When the plants have made four or five leaves, set them out in a house or hotbed having a temperature ranging from 75 to 85 degrees. Keep the plants well thinned and water carefully, as they are liable to damp off at the collar if they have too much wet. Do not allow them to ramble after the fruit has begun to swell, nor allow the plants to bear more than two, or at most three, melons each. They require a strong, fibry, loamy soil, with a little rotten manure worked in. The Hero of Lockinge is a grand white-fleshed variety, and Blenheim Orange is a handsome scarlet-fleshed sort.

Menispermum Canadense (_Moon seed_).--A pretty slender-branched, hardy, climbing, deciduous shrub, with yellow flowers in June, followed with black berries. It grows in any soil, and can be propagated by seed, by division of roots, or by planting cuttings in spring in a sheltered spot. Height, 10 ft.

Mentha Rotundifloria Variegata (_Variegated Mint_).--A hardy perennial, which may be grown in any soil, and is easily increased by dividing the roots. It flowers in July. Height, 2 ft.

Menyanthes.--Treat as other hardy aquatics.

Menziesia (_Irish Heath_).--This evergreen thrives best in fibrous peat to which a fair quantity of silver sand has been added. While excessive moisture is injurious, the plant must not be kept too dry; the best condition for it is to be constantly damp. Slips torn off close to the stem will root in sand under glass, placed in gentle heat. Height, 2 ft.

Mertensia.--These hardy perennials flower from March to July. They will grow in any garden soil, but do best in peat, and are propagated by division. They make fine border plants. Mertensia Maritima and M. Parviflora, however, are best grown in pots, in very sandy soil, perfection being afforded them during the winter. Height, 11/2 ft. to 2 ft.

Mesembryanthemums (_Ice Plants_).--These half-hardy, annual succulents have a bright green foliage covered with ice-like globules. They must be raised in a greenhouse or on a hotbed, sowing the seed in April on sandy soil. Prick the young plants out in May. If grown in pots they thrive best in a light, sandy loam. In the border they should occupy a hot and dry situation. Keep the plants well watered until established, afterwards give a little liquid manure. May be increased by cuttings taken in autumn. Cuttings of the more succulent kinds should be allowed to dry a little after planting before giving them water. A dry pit or frame is sufficient protection in the winter; they merely require to be kept from frost. Flower in July. Height, 1 ft.

Mespilus.--_For treatment, see_ "Medlars."

Meum Athamanticum.--A hardy perennial with graceful, feathery green foliage, but of no special beauty. It is a native of our shores, will grow in any soil, blooms in July or August, and is freely propagated by seeds. Height, 1-1/2 ft.

Michaelmas Daisies (_Starworts_).--A numerous family of hardy herbaceous perennials. Some few are very pretty, while others can only be ranked with wild flowers. They thrive in any soil or position, but flourish best where there is a due proportion of sunshine. They are easily raised from seed, sown early in spring, or may be increased by root-division either in the autumn, as soon as they have done flowering, or in the spring. They vary in height from 1 ft. to 5 ft.

Michauxia Campanuloides.--This is an attractive border biennial, bearing from March to June white campanula-like flowers tinged with purple, on erect stems. It is not particular as to soil, but requires a southern position and protection in winter. Propagated by seeds in the same way as other biennials. Height, 4 ft.

Mignonette.--For summer-flowering plants sow the seed in spring, and thin out to a distance of 9 in. apart. To obtain bloom during the winter and spring successive sowings are necessary. Let the first of these be made the second week in July in light, rich soil; pot off before frost sets in, plunge them in old tan or ashes, and cover with a frame facing the west. Another sowing should be made about the middle of August, giving them the same treatment as the previous; and a third one in February, in gentle heat. Height, 9 in. to 3 ft. The Mignonette tree is produced by taking a vigorous plant of the spring sowing, and removing all the lower shoots in the autumn. Pot it in good loam, and keep it in the greenhouse in a growing state, but removing all the flowers. By the spring the stem will be woody. Let the same treatment be given it the second year, and the third season it will have become a fine shrub. It may be made to bloom during the winter by picking off the blossom in the summer and autumn. Height, 3 ft.

Mildew.--Syringe with a strong decoction of green leaves and tender branches of the elder-tree, or with a solution of nitre made in the proportion of 1 oz. of nitre to each gallon of water. Another good remedy is to scatter sulphur over the leaves while the dew is upon them, afterwards giving them a syringing of clear water.

Milkmaid.--_See_ "Cardamine."

Milk Thistle.--_See_ "Carduus."

Mimosa.--These shrubs are often called Sensitive Plants, on account of the leaves of several of the species of this genus shrinking when touched. They grow well in loam and peat with a little sand, but require to be planted in a warm situation or to have greenhouse care. Cuttings of the young wood root readily in sand under a glass. They may also be raised from seed. Mimosa Pudica exhibits most sensibility. Height, 2 ft.

Mimulus (_Monkey Flower_).--Showy half-hardy perennials which thrive in moist and shady situations and in almost any soil. They may be grown from seed sown in slight heat from February to May, or increased by division of the root. The frame and greenhouse kinds grow best in a rich, light soil, and may be multiplied by cuttings. The annuals may be sown where they are to flower. They bloom in June and July. Height, 2 in. to 11/2 ft. (_See also_ "Diplacus.")

Mina Lobata.--A charming half-hardy annual climber, bearing singularly shaped flowers, produced on long racemes. When young the buds are a vivid red, changing to orange-yellow, and when fully expanded the flowers are creamy-white. It thrives in loam and peat to which a little dung has been added, and is well adapted for arbours, trellises, or stumps of trees. Sow the seed on a hotbed in March, harden off, and transplant when all fear of frost is over. Height, 8 ft. to 12 ft.

Mint.--May be grown in any garden soil. It is increased by runners, which, if not held in check, become very troublesome. The roots may be confined by means of tiles or slates. Flowers in July. Height, 11/2 ft.

Mistletoe.--Raise the bark of an apple, pear, or oak tree on the underneath part of a branch and insert some well-ripened berries, then tie the bark down neatly with raffia or woollen yarn. If the berries were inserted on the top of the branch the operation would result in failure, as the birds would devour them.

Mitella Diphylla.--A hardy perennial which bears slender racemes of white flowers in April. It makes a pretty rock plant, delights in a peat soil, and is increased by division of the root. Height, 6 in.

Moles.--These pests may be destroyed by placing in their runs worms that have been kept for some time in mould to which carbonate of barytes has been added.

Monardia Didyma (_Oswego Mint, or Horse Balm_).--_See_ "Bergamot."

Monetia Barlerioides.--An ornamental shrub, suitable for the greenhouse or stove. It requires to be grown in loam and peat, and may be increased by cuttings planted in sand, under glass, in a bottom-heat. Height, 3 ft.

Monkey Flower.--_See_ "Mimulus."

Monkey Puzzle.--_See_ "Araucaria."

Monk's-hood.--_See_ "Aconite."

Montbretia.--Very graceful and showy plants. The flowers, which are like small Gladioli, are produced on long branched spikes and are excellent for cutting. Plant 3 in. deep and 2 in. apart in sandy loam and leaf-mould. The corms should never be kept long out of the ground, as they shrivel, and weak growth and few flowers are the result. Though they are hardy it is well to give them a covering of litter in winter. They may also be grown in pots. Height, 2-1/2 ft.

Moraea Iridioides.--These plants flower in May, and require the same treatment as Ixias.

Morina (_Whorl Flower_).--An ornamental hardy perennial, which is seldom met with. It forms rosettes of large, deep green, shiny foliage and stout spikes of rose-coloured flowers in whorls, which make it one of the most attractive of Thistles. It likes a rich, light soil, is increased by seed sown in the autumn, also by division in August, and flowers in July. Height, 21/2 ft.

Morisia Hypogaea.--This is a pretty hardy perennial for rock-work. It flowers in May, and is raised from seed sown as soon as it is ripe. Height, 2 in.

Morna Elegans.--Beautiful half-hardy annuals. For early flowering sow the seed in September: for later blooms sow in February in slight heat, pot off, affording good drainage to the plants. They are very sensitive to cold, and should not be placed out of doors before the end of May. Avoid over-watering, as this would prove fatal to them. The soil should be light and sandy. Those sown in September will bloom in the greenhouse in May; those sown in February will flower in the open in the autumn. Height, 11/2 ft.

Morning Glory.--_See_ "Convolvulus."

Morrenia Odorata.--A good twining plant for the greenhouse, producing fragrant cream-coloured flowers in July. It will grow in any good loamy soil, and may be increased by cuttings. Height, 3 ft.

Moss.--To eradicate moss from fruit-trees wash the branches with strong brine or lime water. If it makes its appearance on the lawn, the first thing to do is to ensure a good drainage to the ground, rake the moss out, and apply nitrate of soda at the rate of 1 cwt. to the half-acre, then go over the grass with a heavy roller. Should moss give trouble by growing on gravel paths, sprinkle the ground with salt in damp weather.

Mountain _Avens.--See_ "Dryas."

Muhlenbeckia Complexa.--A very decorative climber, hardy in nature but requiring a good amount of sunshine to make it bloom. A well-drained, sandy soil is best for its growth, and it can be increased by cuttings of hardy shoots taken early in summer. Height, 6 ft.

Mulberries.--Any good soil will grow the Mulberry. The tree is hardy, but the fruit wants plenty of sunshine to bring it to perfection. It may be propagated by cuttings of wood one year old with a heel two years old attached. The only pruning necessary is to keep the branches well balanced. Autumn is the time to do this, not forgetting that the fruit is borne on the young wood. When grown in tubs or large pots in the greenhouse the fruit attains the perfection of flavour. In addition to the Large Black and the White (Morus Alba) the New Weeping Russian White may be recommended.

Mulching.--_See_ "Soil."

Muscari.--_See_ "Hyacinthus."

Muscari Botryoides.--_See_ "Hyacinthus."

Mushrooms.--Take partially dry horse manure and lay it in a heap to ferment. Turn and mix it well every few days, and when well and equally fermented, which will be from ten to fourteen days, make it into a bed 4 ft. wide and 2 ft. deep, mixing it well together and beating or treading it firmly. When the temperature of the bed falls to 75 degrees, or a little under, the spawn may be inserted in pieces about the size of a walnut, 2 in. deep and 6 in. apart. Now give a covering of loamy soil, 2 in. deep, and beat it down evenly and firmly. Finish off with a covering of clean straw or hay about 1 ft. thick. Water when necessary with lukewarm water; but very little should be given till the Mushrooms begin to come up, then a plentiful supply may be given. They may be grown in any warm cellar or shed, and usually appear in from four to six weeks after planting.

Musk (_Mimulus Moschatus_).--A well-known sweet-scented, half-hardy perennial, well adapted for pot culture. A moist, shady position is most congenial to it when placed in the border. Seed sown in autumn make fine, early-flowering greenhouse plants. For summer blooming the seed is sown early in spring, under a frame or hand-glass, at a temperature of from 55 to 60 degrees. It is readily propagated by division. Height, 6 in.

Mustard and Cress.--For sowing in the open choose a shady border, make the surface fine and firm, and water it well before putting down the seed. Let the seed be sown thickly at intervals of seven or fourteen days from March to September. As the Cress does not germinate so quickly as the Mustard, the former should be sown four days before the latter. The seed must not be covered, but simply pressed into the surface of the soil. Keep the ground moist, and cut the crop when the second leaf appears. For winter use it is best sown in boxes and grown in a frame, the seed being covered with flannel kept constantly moist. This may be removed as soon as the seed germinates. Gardeners mostly prefer to grow it through coarse flannel, to avoid the possibility of grit being sent to table. The curled leaf Cress is the best, and the new Chinese Mustard is larger in leaf than the old variety, and is very pungent in flavour.

Myosotis (_Forget-me-not_).--The perennial varieties of these beautiful plants grow best in moist places, such as the edges of ponds or ditches; but they also do well in pots among Alpine plants. Most of them may be increased by root division, and all of them by seed. The annuals like a dry, sandy soil, and are grown from seed sown in March. They flower in June or July. Height, 6 in.

Myrica Gala (_Candleberry Myrtle_).--This hardy deciduous shrub is very ornamental, and its foliage is scented like the myrtle. It will grow in light, rich soil, but thrives best in peat, and may be increased by seeds or layers. May is its flowering time. Height, 4 ft. M. Cerifera is treated in precisely the same manner. Height, 6 ft.

Myrsiphyllum Asparagoides.--_See_ "Smilax."

Myrtle (_Myrtus_).--Will strike readily if the cuttings be placed in a bottle of water till roots grow, and then planted; or young cuttings will strike in sandy soil under a hand-glass. They succeed best in a mixture of sandy loam and peat and on a south wall. Near the sea they prove quite hardy. Height, 6 ft.

N

Narcissus.--_See_ "Daffodils."

Nasturtiums.--These are among the most useful of our hardy annuals, producing a display of the brightest of colours throughout the entire summer. The tall-growing climbers make a gay background to a border, and are equally valuable for trellis-work, while the dwarf varieties are first-class bedding plants, and of great service for ribboning. The seeds may be sown in pots in September or in the open ground early in spring. A light sandy or gravelly soil is the best to produce a wealth of bloom. Height, 6 ft. and 1 ft.

Nectarines.--Require the same treatment as the Peach. In fact, the Nectarine stone sometimes produces a Peach, and a Peach stone often produces a Nectarine. Fairchild's, Humboldt, Lord Napier, and Red Roman are useful varieties. They should stand 20 ft. apart.

Neilla.--These shrubs thrive in ordinary soil, and are increased by cuttings of the young wood. They flower in July. N. Torreyi bears white Spiraea-like flowers, which are very effective. Height, 6 ft.

Nemesia.--A most beautiful half-hardy annual of the Antirrhinum class. Sow the seed early in spring on a hotbed, and plant out in May in rich, light soil. Cuttings of the young wood will strike under glass. Height, 1-1/2 ft. to 2-1/2 ft.

Nemophila.--Pretty, neat, and compact hardy annuals, well worth cultivating. They succeed best in a moist and shady situation, delight in peat or vegetable mould, and when grown in circles are very striking. If wanted to flower early, sow the seed in autumn, or on a hotbed in spring; and if required for late blooming, sow in the open in March. Treated thus they flower from June to September. Height, 1 ft.

Nepeta Glechoma Variegata.--A very useful plant for hanging baskets. It can be trained as a pyramid or allowed to hang down; in many cases it is employed as edgings. It is of easy culture, and does well as a window plant or in a cool greenhouse. The soil should be light and dry. It flowers in July, and may be increased by root-division.

Nerine Sarniense.--_See_ "Guernsey Lily."

Nertera Depressa (_Coral Berry_).--This pretty Moss-like plant is fairly hardy, and is eminently suited for a sheltered position on the rockery. The soil should consist of leaf-mould and sand, and overhead sprinkling with soft water is very beneficial. In cold districts it is better to grow it in the greenhouse. The flowers are produced in July, succeeded by orange-coloured berries. It is easily increased by dividing it early in the spring. Height, 3 in.

Neuvusia Alabamensis.--A tamarix-like shrub, bearing clusters of white flowers early in spring. Will grow in any soil or situation. Increased by cuttings placed in sand under glass.

Nicotiana (_Tobacco Plants_).--Very showy half-hardy annuals. N. Affinis bears long, tubular, sweet-scented, white flowers in July, and grows to the height of 3 ft. N. Virginica produces immense leaves and pink flowers, and the plants are 4 to 5 ft. high. The seed is sown on a hotbed in spring, and when the second or third leaf appears the plants are put into small pots and placed in a frame till the end of May, when they are transferred to the border.

Nierembergia (_Cup Flowers_).--These elegant half-hardy annuals grow well in any light soil, but prefer a mixture of sandy loam and leaf-mould. Sow the seed in March or April in slight heat, harden off, and plant out in May as soon as all fear of frost is over. They flower in July. Height, 9 in. to 1 ft.

Nierembergia Rivularis.--This herbaceous plant is of a creeping nature; it has deep green ovate foliage and large saucer-shaped white flowers. It needs a moist position, and is increased by division. The bloom is produced throughout June, July, and August. Height, 3 in.

Nigella.--These hardy annuals, a species of Fennel-flower, are both curious and ornamental. Perhaps the best known among them is N. Hispanica, or Love-in-a-Mist. They only require sowing in the open in spring--but not before the middle of March--to produce flowers in July and August. Height, 9 in. to 2 ft.

Night-scented Stocks.--_See_ "Mathiola."

Nolana.--Hardy annuals that are suitable for the border, as they are very showy when in flower. The seed should be sown in spring on a gentle hotbed, and the plants transferred to the garden about the middle of May. N. Atriplicifolia may be sown in the open in the autumn. They flower in July and August. Height, 6 in. to 2 ft.

North Borders, Plants suitable for.--Hardy Camellias, Chrysanthemums, black and green Tea Plant, Rhododendrons, Ferns, Red Currants, Morello Cherries, and spring and summer cuttings of all sorts.

Nuttallia.--This early-flowering shrub is only hardy in the south and south-west of our country. It requires a light, rich soil, and may be increased by division. Racemes of white flowers are produced during February and March. Height, 2 ft.

Nycterina.--Exquisite little half-hardy plants, suitable for pots or rock-work. The seed should be sown early in spring on a gentle hotbed, and the young plants transferred to the pots or open ground at the end of May, using a light, rich soil. Height, 3 in.

Nymphaea Alba.--A hardy aquatic perennial, frequently found in our ponds. It flowers in June, and may be increased by dividing the roots. Height, 1 ft.

O

Odontoglossum Grande.--A most beautiful orchid, delighting in a temperature of from 60 to 70 degrees and an abundance of water during summer, but good drainage is essential. The blooms are yellow, spotted and streaked with venetian red, and are often 6 in. across. The pots should be two-thirds filled with crocks, then filled up with fibrous peat and sphagnum moss. During winter only a very little moisture should be given.

Oenothera.--The Evening Primroses are most useful and beautiful plants, well suited for ornamenting borders, beds, edgings, or rock-work. All the species are free-flowering, and grow well in any good, rich soil. The annual and biennial kinds are sown in the open in spring. The perennials may be increased by dividing the roots, by cuttings, or by seed, the plants from which will flower the first season if sown early in spring. They bloom in June and July. Height, 6 in. to 4 ft.

Olearia.--These evergreen shrubs thrive in peat and loam, and may be increased by division of the roots. O. Haastii has foliage resembling the Box, and a profusion of white, sweet-scented flowers in summer: a chalk soil suits it admirably. Height, 3 ft. to 4 ft.

Omphalodes Verna.--A hardy perennial which may be grown under the shade of trees in ordinary soil. It produces its flowers in March, and is increased by dividing the roots in autumn. Height, 6 in.

Oncidium Sarcodes.--Plant these Orchids firmly in well-drained pots, using equal parts of live sphagnum and fibrous peat. Give one good watering as soon as the potting is finished, and stand them in a light, warm part of the greenhouse. They will require very little more water until the roots have taken hold of the soil--only sufficient to keep the pseudo-bulbs from shrivelling--and during the winter months scarcely any moisture is needed. They flower in August. Height, 1-1/2 ft.

Onions.--Require a deep, rich, heavy soil. Where the ground is not suitable it should have had a good dressing of rotten manure the previous autumn, and left in ridges during the winter. Level the ground, and make it very firm just before the time of sowing. The seed should be sown early in March for the main crop and for salad and pickling Onions, and in August for summer use. Thin out to about 6 in. apart, excepting those intended to be gathered while small. The Tripoli varieties attain a large size if transplanted in the spring. The Silver-skins do best on a poor soil. For exhibition Onions sow in boxes early in February in a greenhouse; when about 1 in. high prick out, 3 in. apart, into other boxes; give gentle heat and plenty of air, and when they have grown 6 in. high put them in a cool frame until the middle of April, when they must be planted in the open, 1 ft. apart.

Ononis Rotundifolia (_Round-leaved Restharrow_).--A charming hardy evergreen of a shrubby nature. It will grow in any ordinary garden soil, and is increased by seed, sown as soon as it is ripe. It is most effective in clumps, and blooms from June to September. Height, 1-1/2 ft.

Onopordon.--Half-hardy perennials of a rather interesting nature and of easy cultivation. Sow the seed any time between March and June. They require the protection of a frame or greenhouse during winter, and produce flowers in July. Height, 6 in. to 8 ft.

Onosma Taurica (_Golden Drop_).--This hardy herbaceous plant is very pretty when in flower, and suitable for rock-work. It requires a well-drained vegetable mould, and to be planted where it can obtain plenty of sun. It is increased from cuttings taken in summer, placed in a cucumber frame, kept shaded for about a fortnight, and hardened off before the winter. The flowers succeed one another from June to November. Height, 1 ft.

Opuntia Rafinesquii (_Hardy Prickly Fig_).--A dwarf hardy Cactus with sulphur-coloured flowers, produced from June to August; very suitable for dry spots in rock-work. It grows best in peat with a little sand, and is propagated by separating the branches at a joint, and allowing them to dry for a day or so before putting them into the soil. Height, 2 ft.

Orange, Mexican.--_See_ "Choisya."

Orchids.--The four classes into which these charming and interesting plants are divided may be described as (1) those coming from the tropics, (2) from South Africa, (3) from the South of Europe, and (4) our native varieties. The first require a stove, the second a greenhouse, the third and fourth slight protection during winter. As their natural character differs so widely it is necessary to ascertain from what part of the globe they come, and to place them in houses having as near as possible the same temperature and humidity as that to which they are accustomed. The pots in which they are grown should be filled with fibrous peat and sphagnum moss, largely mixed with charcoal, and abundant drainage ensured. They are propagated by dividing the root stocks, by separating the pseudo-bulbs, and, in case of the Dendrobiums, by cuttings. Orchis Foliosa (_Leafy Orchis_) may be grown in the open ground in good sandy loam. When once established it is best not to disturb it, but if needed it may be increased by division, after the tops have died down. Orchis Fusca (_Brown Orchis_) may likewise be planted in the open, in a sheltered position, in fine loam and leaf-mould, the soil to be well drained, yet constantly moist.

Origanum Pulchellum.--Popularly known as the Beautiful Marjoram, this plant is useful for cutting for vases. It is perennial and hardy, and thrives in a dry situation with a sunny aspect and in a sandy soil. The bloom is in its best condition in October. The rooted shoots may be divided in spring or almost at any other period, or it may be propagated by taking cuttings in summer. Height, 1-1/2 ft.

Ornithogalum.--O. Arabicum bears a large white flower with a shiny black centre. It is a fine plant for pot culture, or it may be grown in water like the Hyacinth. It may be planted in the open early in spring in sandy loam and peat. Take it up before the frost sets in and store it in a dry place, as it requires no moisture while in a dormant state. In September the flowers are produced. Height, 6 in. O. Umbellatum (_Star of Bethlehem_) is a pretty little flower often found in English meadows, is quite hardy, and once established may be left undisturbed for years. It throws up large heads of starry flowers, which are produced in great abundance. While in a dormant state the bulbs should be kept almost dry. It is propagated by off-sets; flowers in May. Height, 1 ft.

Orobus.--These hardy perennials bear elegant Pea-shaped blossoms. The plants will grow readily in any light soil, and are easily increased by root-division in the spring, or by seeds. They flower in June. Height, 2 ft. to 3 ft.

Osmanthus.--These elegant hardy evergreen shrubs succeed best in light, sandy loam, and like a dry situation. They may be increased by cuttings of the young shoots with a little old wood attached, or they may be grafted on to common Privet. The variegated varieties are very beautiful. They grow well on chalk soils. Height, 4 ft. to 6 ft.

Othera Japonica.--A newly introduced evergreen shrub very similar to the Holly. It is perfectly hardy and may be treated in the same manner as that plant.

Ourisia Coccinea.--A hardy herbaceous, surface-creeping perennial of singular beauty as regards both leaf and flower. The soil in which it is grown must be well drained, a peat one being preferable; and the position it occupies must be well shaded from the rays of the midday sun. It flowers from May onwards to September, the cut bloom being admirable for mixing with fern leaves. As soon as new life starts in spring the roots may be divided. Height, 9 in.

Oxalis.--A genus of very pretty bulbous plants that thrive well in a mixture of loam, peat, and sand, or will grow in any light soil. Most of the tender kinds may be reared in a frame if protected from frost in the winter. After they have done flowering they should be kept dry until they begin to grow afresh. They are increased by off-sets from the bulb. The hardy species should be planted in a shady border, where they will grow and flower freely. The seeds of these may be sown in the open in spring. Some of the varieties have fibrous roots: these will bear dividing. They are equally suitable for pots, borders, or rock-work. Height, 9 in. to 3 ft.

Ox-Tongue.--_See_ "Bugloss."

Oxythopis Campestris.--A hardy perennial with lemon-yellow flowers in June and July. It will grow in any good garden soil, and is propagated by seed only, which should be sown where the plants are intended to be grown. Height, 6 in.

P

Pachysandra.--This early hardy perennial has ornamental foliage and blooms in April. It will succeed in almost any soil, and may be increased by suckers from the roots. Height, 1 ft.

Paeonies.--These beautiful flowering plants are mostly hardy enough to endure our winters. The herbaceous kinds are increased by dividing the plants at the roots, leaving a bud on each slip. The shrubby species are multiplied by cuttings taken in August or September, with a piece of the old wood attached, and planted in a sheltered situation. Tree Paeonies require protection in winter, and may be propagated by grafting on to the others, by suckers, or by layers. New varieties are raised from seed. A rich, loamy soil suits them best. Height, 2 ft.

Palms from Seed.--Soak the seed in tepid water for twenty-four hours, then put them singly 1 in. deep in 2-in. pots filled with equal parts of loam, leaf-mould, and sand. Cover the pots with glass and stand them in the warmest part of a hothouse. Shade from strong sunshine, and keep the soil just moist. Re-pot as soon as the roots have filled the old ones.

Pampas Grass.--_See_ "Gynerium."

Pampas Lily of the Valley.--_See_ "Withania."

Pancratium.--A handsome class of plants. Their habit of growth is somewhat like that of the Amaryllis. They are admirably adapted for growing in pots in the greenhouse. They may also be planted in the open ground under a south wall. The bulbs should be placed in a composition of three parts light, sandy loam and one of vegetable mould. They are increased by off-sets from the roots, or by seeds, by which the new varieties are obtained. Height, 1 ft. to 2 ft.

Pandanus Veitchi (_Variegated Screw Pine_).--For table decoration or vases this is a most useful plant. It requires a warm greenhouse where a temperature of 60 or 70 degrees can be kept up throughout the year, and grows well in equal parts of peat and loam with one-sixth part sand. During the autumn a little liquid manure is beneficial. In the winter months it should be watered carefully, but in the summer it is improved by syringing with warm water. It is propagated very easily by suckers taken off in spring or summer, placed in a temperature of 75 degrees.

Panicum.--Handsome ornamental grasses. They will grow in any soil or situation. P. Capillare is an annual, suitable for bouquets or edgings; it is increased by seed. P. Altissimum, an annual, and P. Sulcatum, a most elegant greenhouse plant, are fine for specimens. P. Plicatum is highly ornamental and hardy, but is best grown as a conservatory or window plant; it has a Palm-like appearance, and is of quick growth. Most of the plants flower in July. They may be propagated by seed or by division of the roots. Average height, 1-1/2 ft.

Pansies (_Heartsease_).--Grow well from seed sown in July or August on a raised bed of light earth. They may also be increased from cuttings taken in August, September, April, or May, selecting young side-shoots and planting them in light earth mixed with silver sand. The cuttings should be kept in a cool frame, moderately moist, and shaded from the hot sun. They can likewise be increased by layers, merely pegging them down and not slitting them on account of their tendency to damp off. They may also be increased by dividing the roots in April or May. They should be planted where they will get all the morning sun, yet be sheltered from mid-day rays; in an open and airy situation, yet protected from cutting winds. While the plants are blooming they should be supplied with liquid manure.

Papaver (_Poppy_).--These showy flowers are most at home in a rich, light soil. They are easily raised from seed sown where they are intended to bloom. The perennials may also be increased by dividing the roots. They flower at midsummer. Height varies from 1 ft. to 3 ft.

Pardanthus Chinensis.--_See_ "Iris."

Parsley.--In order to grow Parsley to perfection it is necessary that the ground be well drained, as the roots and stems must be kept dry, and the soil should be rich and light. Three sowings may be made during the year: the first in spring for late summer and autumn use, the next in June for succession, and another in August or September for spring and early summer use. Thin out or transplant, to 6 in. apart. Parsley takes longer than most seeds to germinate; it must therefore be watched during dry weather and watered if necessary. Plants potted in September and placed in a cold frame, or protected in the open from rain and frost with a covering of mats supported by arches, will be valuable for winter use.

Parsnips.--These succeed best in a rich soil, but the application of fresh manure should be avoided, as it induces forked and ill-shaped roots. Let the ground be trenched two spits deep and left ridged up as long as possible. As early in March as the weather will permit level the surface and sow the seed in drills 15 in. apart, covering it with half an inch of fine soil. When the plants are 2 or 3 in. high, thin them out to 9 in. apart. They may be taken up in November and, after cutting off the tops, stored in a pit or cellar in damp sand, or they may be left in the ground till required for use.

Passion Flower.--Cuttings of the young shoots strike readily in sand under glass. The plant likes a good loamy soil mixed with peat. A sheltered position with a south or south-western aspect should be assigned those grown out of doors, and the root should be well protected in winter. The flowers are borne on seasoned growth of the current year: this fact must be considered when pruning the plants. During the hot months the roots require a copious supply of water, and the foliage should be syringed freely. Passiflora Cærulea is fine for outdoor culture, and Countess Guiglini makes a capital greenhouse plant.

Pavia Macrostachya.--This is a deciduous hardy shrub or tree which bears elegant racemes of white Chestnut-like flowers in July. Any soil suits it. It is propagated by layers or by grafting it on to the Horse-chestnut. Height, 10 ft.

Peaches.--These are best grown on a strong loam mixed with old mortar; though any soil that is well drained will produce good fruit. When possible, a south wall should be chosen; but they are not particular as to position, providing they are afforded shelter from cold winds. November and February are the most favourable months for planting. The roots should be carefully arranged at equal distances apart, 3 or 4 in. below the surface of soil, and then covered with fine mould. Avoid giving manure at all times, except when the trees are bearing fruit heavily. Train the shoots about 6 in. apart, removing all the wood-buds except one at the base of the shoot and one at the point. Keep the flowers dry and free from frost by means of an overhead shelter, to which tiffany or canvas can be attached, which should, however, only be used so long as the cold weather lasts. To ensure good fruit, thin the same out to 6 in. apart as soon as it attains the size of a small pea, and when the stoning period is passed remove every alternate one, so that they will be 1 ft. apart. After gathering the fruit, remove any exhausted and weak wood, leaving all that is of the thickness of a black-lead pencil. To keep the foliage clean, syringe once a day with water; this may be continued until the fruit is nearly ripe. The following may be recommended for outdoor cultivation:--Hale's Early, Dagmar, and Waterloo for fruiting in July or August; Crimson Galande, Dymond, and the well-known Bellegarde for succession in September; and Golden Eagle for a late sort. When planted in quantities, Peaches should stand 20 ft. apart.

When grown under glass a day temperature of 50 degrees, falling to 45 degrees at night, is sufficient to start with, gradually increasing it so that 65 degrees by day and 55 by night is reached at the period of blossoming. Syringe the leaves daily until the flowers are produced, then discontinue it, merely keeping the walls near the pipes and the paths damp. As soon as the fruit is set the syringing should recommence. Water of the same temperature as that of the house should in all cases be used. When the fruit begins to ripen, cease once more the syringing until it is gathered, then admit air freely, wash the trees daily, and apply liquid manure to the roots in sufficient quantities to keep the soil moist during the time the trees are at rest. Rivers's Early, Pitmaston Orange, Dagmar, and Royal George are all good under glass.

Pears.--Wherever Apples are a success Pears will grow. As a rule, they are best grown dwarf. On light soils they should be grafted on to Pear stocks, but on heavy soils they are best worked on the Quince. The fruiting of young trees may be accelerated by lifting them when about five years old, spreading out the roots 1 ft. below the surface of the soil, and mulching the ground. The mulching should be raked off in the spring, the ground lightly stirred with a fork and left to sweeten, and another mulching applied when the weather becomes hot and dry. In pruning, leave the leading branches untouched, but let all cross shoots be removed, and the young wood be cut away in sufficient quantity to produce a well-balanced tree, and so equalise the flow of sap. Some of the pruning may be done in summer, but directly the leaves fall is the time to perform the main work. A good syringing once a week with the garden hose will keep the trees vigorous and free from insects. Should scab make its appearance on the leaves, spray them occasionally with Bordeaux Mixture, using the minimum strength at first, and a stronger application afterwards if necessary. There are over 500 varieties of Pears, so it is no easy matter to give a selection to suit all tastes, but a few may be named as most likely to give satisfaction. Louise Bonne de Jersey succeeds in almost any soil and in any situation, is a great favourite, and ripens its fruit in October. Beurré Giffard makes a fine standard, and ripens in July. Beurré Hardy is delicious in October and November. Doyenné du Comice is one of the best-flavoured, and is very prolific. Beurré d'Amanlis ripens in August. Williams's Bon Chrêtien, Aston Town, Pitmaston Duchess, Clapp's Favourite, Comte de Lamy, and Josephine de Malines are all reliable for dessert, while for stewing purposes Catillac, Black Pear of Worcester, Verulam, and Vicar of Winkfield are among the best. In orchards standards should be from 20 to 25 ft. apart; dwarfs 12 ft. to 1 rod.

Peas.--For the production of heavy summer and autumn crops a rich and deeply-stirred soil is essential, one of the best fertilisers being well-decayed farmyard manure; but for the earliest crop a poorer soil, if deep and well pulverised, will give the best results. Peas under 3 ft. in height do not require sticking, but they can be more easily gathered if a few small twigs are used to keep the haulm off the ground. If sown in successive lines the space between the rows should correspond with the height of the variety grown. A good plan is to arrange the rows 10 or 15 ft. apart, and crop the intervening spaces with early dwarf vegetables. The earliest varieties may be sown from November to February, on the warmest and most sheltered border: these may be gathered in May and June. The second early round, varieties, if sown from January to April, will be ready for gathering in June and July. The main crop round varieties may be sown from February to May: these will be ready to gather in July and August. The early wrinkled varieties may be sown from March to June, for gathering between June and September. Sow main crop and late varieties at intervals of fourteen days from March to May: these will be ready to gather in July, August, and September. When the plants are a couple of inches high draw the earth neatly round them, and stake the taller varieties as soon as the tendrils appear. Keep them well watered in dry weather, and if on a light soil a mulching of manure will be beneficial. As soon as the pods are setting apply weak liquid manure to the roots when the ground is moist.

Peas, Everlasting (_Lathyrus Latifolia_).--These well-known and favourite hardy perennials are very useful for covering trellises, etc. They will grow in any garden soil, and may be raised from seed sown early in spring in slight heat. Where there is no greenhouse or frame the seed may be planted, about 1/2 in. deep, round the edges of pots filled with nice, light soil, and covered with a sheet of glass, keeping the soil moist till the seed germinates. When the plants are strong enough they may be placed in their permanent quarters. They bloom from June to September. Old roots may be divided. Height, 6 ft.

Peas, Sweet.--These most beautiful and profuse blooming hardy annuals will grow almost anywhere, but they prefer a dry soil that is both rich and light. The seed should be sown as early in March as practicable, and in April and May for succession. When the plants are 2 or 3 in. high a few twigs may be placed among them, to which they will cling. The flowers are produced in July, and the more liberally they are gathered the longer the plants will continue to bloom. Height, 3 ft.

Pelargonium.--The shrubby kinds will grow well in any rich soil; loam and decayed leaves form a good compost for them. They require good drainage and plenty of air and light while in a vigorous state. Cuttings root readily in either soil or sand, especially if placed under glass. Most of the hard-wooded varieties are more easily increased by cuttings from the roots. The tuberous-rooted ones should be kept quite dry while dormant, and may be increased by small off-sets from the roots.

Pentstemon.--This charming hardy perennial is deserving of a place in every garden. It may be grown in any good soil, but a mixture of loam and peat is most suitable. The seed may be sown in April, and the plants transferred when strong enough to their flowering quarters; or it may be sown in a sheltered position during August or September to stand the winter. It may also be increased by dividing the roots in spring, as soon as growth begins. Cuttings of the young side-shoots about 6 in. long may be taken at any period--the middle of September is a good time; these should be placed under a hand-glass in sandy loam and leaf-mould. These cuttings will flower the first year. It blooms from May to October. Height, 2 ft.

Peppermint.--This may be grown on any damp or marshy soil, and increased by dividing the roots.