STOVE AND ORCHID-HOUSE.

As the soft-wooded stove plants will now be making rapid growth, the free admission of light is necessary to prevent them from drawing; using shade only during scorching sunshine. When a plant is shifted, give less water to the roots; as the fresh soil, after the first watering will be moist enough for some time. Some of the free-growing kinds of Cattleyas, Calanthes, Phaiuses, Saccolabiums, Stanhopeas, and Zygopetalums, should be encouraged to make kindly growth by frequent syringings about their pots, blocks, or baskets.

FORCING-HOUSES.

Cherries.--The princ.i.p.al objects to be attended to are--abundance of air, with due precaution against cold draughts, a moist atmosphere, and the free application of the syringe. The temperature the same as last week. Particular attention in watering to be paid to the trees in pots,--as too much is as bad as, if not worse than, too little.

Figs.--Continue stopping the young shoots at the fourth or fifth eye. Keep the syringe in frequent use until the fruits begin to change for ripening. Plenty of water, and occasionally a little weak tepid liquid manure, to be given at the roots, more especially when they are confined in pots or tubs.

Melons.--As soon as a sufficient number of fruit blossoms for a crop are expanded, or are likely to expand within a day or two of each other, they should be impregnated. As prevention is better than cure, keep the plants in a healthy-growing state by frequent syringings in fine weather, and closing early; insects will but rarely, if ever, attack thriving plants.

Peaches and Nectarines.--As soon as the stoning of the fruit in the early house is completed, give them a good watering with clear, weak liquid manure; keep the shoots tied in regularly, and pinch off all laterals. If the fruits in the late house are set, partially thin them; as more dependence may now be placed on a crop than at an earlier period of the season.

Pine Apples.--Fruiting plants will be greatly benefited by strong solar heat, as, under its influence, evaporation will be rapid; therefore, water must be applied to both roots and leaves.

Succession plants to be shaded during sudden bright sunshine or sunbursts; and be guided in the application of water by the active or inactive state of the roots.

Vines.--Thinning the fruit is an operation of primary importance.

The first thinning to be performed when the berries are the size of Peas; the second when they begin to be crowded; and the third after the berries are stoned. A piece of strong wire, eight or ten inches long, crooked at one end, is useful to draw the bunches backward and forward, as the operator may require. The Vines in the late house to be tied up as soon as they begin to break. Syringe them every fine afternoon, and close the house early. Give air early in the morning, that the leaves may become gradually dry before the sun acts powerfully upon them.

THIRD WEEK.

GREENHOUSE AND CONSERVATORY.

Keep the conservatory as cool by day as is consistent with the health of the plants. By such means they will remain longer in bloom, and will be more enjoyable for parties inspecting them.

Camellias.--Continue to encourage the growth of those that have done flowering by increasing the temperature, by frequent syringings, and by a liberal supply of water at the roots. If any have made their growth, and have formed their blossom-buds, they will require more light and less moisture for the future.

Cinerarias.--To continue them in a healthy blooming state it is necessary to attend to them carefully, that they may not droop for want of water, nor be saturated with it. When the sun is powerful, slight shading is necessary for a few hours in the middle of the day, to prevent the blooms from losing their brilliancy; and plenty of air to be given when the weather is mild.

Fuchsias.--Having been treated with plenty of heat and moisture, they will now be making rapid growth, and will be fit to shift into their blooming-pots, using a light, rich soil for the purpose.

New Holland Plants.--Top and syringe frequently all such plants as are growing freely. Stake and tie them as they may require.

Pelargoniums.--Continue to stake and tie the shoots that require it in due time. Some clear liquid manure (cowdung water, for instance) may be given to plants that are well established with roots and showing their trusses of bloom; and sufficient s.p.a.ce to be given for each plant to develope its natural beauty. We would advise shading only when there is a fear of scorching from the usual sudden sunbursts of April weather. Ply the syringe every fine evening to refresh the plants, and to keep down insects, until the flowers expand, when syringing should be discontinued.

STOVE AND ORCHID-HOUSE.

The stove plants recently potted will now be making fresh growth.

Allow no diminution of bottom heat, and keep up a warm, moist atmosphere. Give air when the thermometer indicates 90. Continue to shift Gesneras, Clerodendrons, and other such free-growing plants, as they require it. The Bra.s.sias, Cattleyas, some of the Dendrobiums, Gongoras, Peristerias, Phaiuses, Sobralias, Zygopetalums, and other such Orchids, will now be growing freely, and will therefore require a considerable amount of atmospheric moisture. If the roof is covered with climbers, a little management in tr.i.m.m.i.n.g them will obviate the necessity of outside shading, and will give an additional feature of interest to the house. The plants on blocks, or suspended in baskets, will require very frequent syringings to keep them in a healthy-growing state. Plants in bloom may be removed to the conservatory, or any other house with a drier atmosphere, to prolong their period of blooming.

FORCING-HOUSE.

Cherries.--When they begin to change they will require free exposure to light, and abundance of air, to bring out their colour; and, at the same time, a diminution in the supply of water.

Carefully examine all curled leaves, and destroy the grubs they contain. If the trees are very luxuriant, and are making strong foreright shoots, stop them to within a few buds of the main branch.

Figs.--Give the trees in pots some clear liquid manure when they are swelling off. Stop the shoots at about six or eight inches, and thin out any useless shoots. Syringe and water freely.

Melons.--Keep the vines thin, and stop regularly. Shade only in very hot weather. Water sparingly overhead. Plant out succession crops.

Peaches and Nectarines.--When the fruit in the early house has gone through the critical process of stoning, the final thinning should take place; the borders--if inside, or out, or both--should be copiously supplied with water; using liquid manure whenever a weak habit, from poor soil or over-exhaustion, shows it to be necessary. Syringings to be given twice a-day--early in the morning and at shutting-up time. The night temperature to be no more than 50; but during the day it may range to 85, if accompanied with air in liberal quant.i.ties.

Pine Apples.--Lessen the moisture amongst the fruiting plants when they approach maturity. Shift and grow on the young stock in a moist atmosphere; admit air freely in fine weather; prepare beds, and turn out the plants, if preferred.

Strawberries.--They should be kept near the gla.s.s: temperature, 65 to 70 by day, and 55 to 60 by night; succession crops rather cooler. Reduce the water to those ripening. Support the stems, and thin the fruit where superior produce is wanted. Keep them clear of runners and decayed leaves, and give an abundance of air.

Vines.--Continue to thin the Grapes in the early houses: a few berries may require to be taken out of some of the bunches up to the time of their changing colour. Keep up a high temperature--about 75 by day and 60 by night: in later houses, where the bunches are in course of formation, it is a great object to bring them out well. In later houses, where the bunches are formed, or in bloom, let the heat be moderately increased, and admit an abundance of air at all favourable opportunities. Shift pot Vines often, and keep them near the light.

FOURTH WEEK.

GREENHOUSE AND CONSERVATORY.

The plants that are introduced to the conservatory from the stove, forcing-pit, or any other such structures, merely for the blooming season, will require particular care to be taken in the application of water that they may not become sodden and diseased. Continue to stop, prune, or pinch back all rambling and luxuriant shoots in due time. Stir the surface of the bed in the conservatory, and apply fresh soil, to maintain the plants in good health.

Azaleas, Chinese.--Supply them liberally with water at their roots during their blooming season, and prevent damp and drip from injuring the bloom.

Calceolarias.--The herbaceous sorts that have been pushed along in a gentle heat will now be showing bloom, and will require to be grown in a cool, airy place, to prevent the flower-stems from being too much drawn. Keep down green fly. Shift on young stock, keeping the plants well down in the pots as they throw out fresh rootlets from the stem. Cuttings taken off now will root readily in a gentle bottom heat.

Camellias.--Apply shading the moment it is necessary, to protect the young leaves.

Fuchsias.--Grow them steadily on in a moist, warm temperature. Use the syringe freely. Stop any that have a tendency to be long-jointed, to produce uniform and bushy plants.

Heaths.--Admit air liberally to them, and such other hard-wooded plants that are now in bloom, or approaching that state.

Pelargoniums.--Shift on young plants. Any that are wanted for late blooming should now be stopped.

Rhododendrons, Hybrid Indian.--Treat as advised for _Azaleas_.

STOVE AND ORCHID-HOUSE.

Continue a kindly moistness amongst the Orchids, and slightly increase the temperature. Shade with tiffany, or close-meshed netting, in bright sunny weather; removing it early in the afternoon. Water liberally all that are making free growth. Repot any that may require it as soon as they have fairly commenced their growth. Continue to give liberal shifts to the free-growing young stock of stove plants, slightly shading for a few hours in hot weather, shutting up early in the afternoon, and producing a kindly humid atmosphere by damping the walls, floors, pots, &c.

Begonias.--Repot and propagate. This is one of the most useful tribe of plants that can be grown, both for the stove and the adornment of the conservatory.

Clerodendrons.--Encourage by a moist heat.

Climbers.--Keep them neatly tied up, and give them liberal supplies of water, if in pots.

Gardenias.--They delight in a close atmosphere; a pit with dung linings is most congenial to them.

Gesnera zebrina.--Pot bulbs for late flowering.