Replace all sorts of greenhouse plants.
Many other species from different parts of the world are known in greenhouse cultivation.
- Window and greenhouse plants require more water and ventilation.
An excellent pit for wintering bedding-out plants or young greenhouse stock is shown at fig.
The atmosphere of the greenhouse must be kept moist.
It is a well-known garden plant, and several other species of the genus are cultivated in the open air and as greenhouse plants.
Spectabile, I to II ft., pink, in great cymose heads, is a fine plant for the borders, and worthy also of pot-culture for greenhouse decoration.
These include all those structures which are more intimately associated with the growth of ornamental plants and flowers, and comprise conservatory, plant stove, greenhouse and the subsidiary pits and frames.
For the propagation by grafts of stove and greenhouse plants the process adopted is whip-grafting or a modification of it.
These conditions of orchid-growing have undergone great changes of late years, and the plants are grown much as other stove and greenhouse plants in ordinary pots with composts not only of peat but of leaf-mould, and fibres from osmunda and polypodium ferns.
The class of tender annuals, being chiefly grown for greenhouse decoration, should be treated much the same as soft-wooded plants, being sown in spring, and grown on rapidly in brisk heat, near the glass, and finally hardened off to stand in the greenhouse when in flower.
Give abundance of air to the greenhouse, conservatory and alpine frame in mild weather, but use little water.
Begin to propagate greenhouse plants by cuttings; also coleuses by cuttings in heat, potting them off as soon as rooted.
These will now be occupied with tender greenhouse plants and annuals, and the more hardy plants from the stove.
Ventilate but little, and with care; raise the ventilating sash only high enough to let the heated air from the greenhouse drive back the outer air so as not to chill the plants.
Various new preparations are coming on the market for the destruction of greenhouse pests.
- The directions for January will in the main apply to this month, except that now some of the hardier annuals may be sown in hotbed or greenhouse, and also the propagation of plants by cuttings may be done rather better now than in January, as the greater amount of light gives more vitality to the cutting.
Cabbage, lettuce and cauliflower seeds, if sown early this month in hotbed or greenhouse, will make fine plants if transplanted into hotbed in March.
In March flower seeds and vegetable seeds may be sown in boxes or flats in the greenhouse, or in residence windows, or near the kitchen stove.
- Window and greenhouse plants should be in their finest bloom.
When the greenhouse is not to be used during the summer months, camellias, azaleas and plants of that character should be set out of doors under partial shade; but most of the other plants usually grown in the conservatory or window garden in winter may be set in the open border.
Annuals that have been sown in the greenhouse or hotbed may be planted out, and seeds of such sorts as mignonette, sweet alyssum, Phlox Drummondii, portulaca, &c., may be sown in the beds or borders.
If the plants are started early in the greenhouse, they are likely to spend themselves before fall, and therefore a later sowing should be provided.
Tender plants will require to be put in the greenhouse or housed in some way towards the end of this month; but be careful to keep them as cool as possible during the day.
If lettuce is wanted for winter use, it may now be planted in the greenhouse or cold frame, and will be ready for use about Christmas.
It may then be taken into the greenhouse and packed closely together under the stage, and will be fit for use from January to March, according to the temperature of the house.
Another plan in the greenhouse is to dash water on the pipes or flues, which causes steam to rise to the glass and freeze there, stopping up all the crevices.
Mawley, Roses for English Gardens; Weathers, Roses for Garden and Greenhouse (33 col.
It is a favourite warm greenhouse plant.
Vittatum (flowers white with red stripes, a beautiful species and the parent of many varieties), are stove or warm greenhouse plants.
On entering a greenhouse her countenance becomes radiant, and she will tell the names of the flowers with which she is familiar, by the sense of smell alone.
It is much used for greenhouse heating works.
Ustilago, and filling a greenhouse with hydrocyanic acid gas when young insects are commencing their ravages, e.g.
Lapageria, a native of Chile, is a favourite greenhouse climber with fine bell-shaped flowers.
In Arum the blade is simple, as also in the so-called arum-lily (Richardia), a South African species common in Britain as a greenhouse plant, and in Caladium, a tropical South American genus, and Alocasia (tropical Asia), species of which are favourite warm-greenhouse plants on account of their variegated leaves.
They are increased by cuttings, and grown in a cool greenhouse in rough peaty soil, with a slight addition of loam and sand.
Thousands of bulbs of such lilies as longiflorum and speciosum are now retarded in refrigerators and taken out in batches for greenhouse work as required.
Japonica (Japan) are greenhouse evergreens with respectively red or white and pinkish-purple flowers.
For evergreens August or September, and for greenhouse and stove-plants the spring and summer months, are the times most suitable for propagation by cuttings.
The Greenhouse is a structure designed for the growth of such exotic plants as require to be kept during winter in a temperature considerably above the freezing-point.
The Plant Stove differs in no respect from the greenhouse except in having a greater extent of hot-water pipes for the purpose, of securing a greater degree of heat, although, as the plants in stove houses often attain a larger size, and many of them require a bed of coco-nut fibre, tan or leaf mould to supply with bottom heat, b: !, b a somewhat greater elevation may perhaps be occasionally required in some of the houses.
For stove and greenhouse plants, orchids, ferns, &c., labels made of xylonite, zinc and other materials are also used.
In this way hardy rhododendrons of choice sorts, greenhouse azaleas, the varieties of the orange family, camellias, roses, rare conifers, clematises and numerous other plants are increased.
In training greenhouse plants the young branches should be drawn outwards by means of ties fastened to a string or wire FIG.
Very durable trellises for greenhouse climbers are made of slender round iron rods for standards, having a series of hooks on the inner edge, into which rings of similar metal are dropped; the rings may be graduated so as to form a broad open top, or may be all of the same size, when the trellis will assume the cylindrical form.
Annuals may be divided into three classes: the hardy, which are sown at once in the ground they are to occupy; the half-hardy, which succeed best when aided at first by a slight hot bed, and then transplanted into the open air; and the tender, which are kept in pots, and treated as greenhouse or stove plants, to which departments they properly belong.
Noble half-hardy bulbs, for planting near the front wall of a hothouse or greenhouse; the soil must be deep, rich and well drained.
Let the greenhouse and conservatory have plenty of air in mild weather.
Sow seeds of greenhouse and hothouse plants; also the different sorts of tender annuals; pot off those sown last month; sow cineraria for the earliest bloom; also Chinese primulas.
Pot off tender annuals, and cuttings of half-hardy greenhouse plants put in during February to get them well established for use in the flower garden.
- Attend to the propagation of all sorts of greenhouse plants by cuttings, and to the replacing in the greenhouse and stoves the more tender species, by the end of the month in ordinary seasons, but in wet weather in the second week.
Keep up moderate temperatures in the stove, and merely repel frosts in the greenhouse, guarding against damp, by ventilation and by the cautious use of water.
Fill the pits with pots of stocks, mignonette and hardy annuals for planting out in spring, along with many of the hardy sorts of greenhouse plants; the whole ought to be thoroughly ventilated, except in frosty weather.
- The directions for the greenhouse ana conservatory in January apply also to this month generally.
En the greenhouse care must be used to protect against frost.
(This material is very poisonous.) Many greenhouse insects can be kept more or less in check by careful and effective hosing of the plants at proper times.
Hyacinths and other bulbs that have been kept in a cellar or other dark cool place may now be brought into the light of the greenhouse or sitting-room, provided they have filled the pots with roots.
- Tropical plants can now be used to fill up the greenhouse during the summer months.
Baines, Greenhouse and Stove Plants; R.
They are freegrowing shrubs with showy bell-shaped flowers, and are favourite greenhouse plants.
The genus Adiantum is a large one containing many handsome species both tropical and temperate, well known in greenhouse and hothouse cultivation.
This type of house is also very suitable for greenhouse plants, but would not need so much heating apparatus.
Fill up with annuals and greenhouse plants those beds from which the bulbs and roots have been raised.
Others thrive in a greenhouse; such are C. asiaticum, a widely distributed plant on the sea-coast of tropical Asia, C. capense and C. longiflorum, from the Cape, and C. Macowani and C. Moorei from Natal.