Cherries.--Caution in the application of water is now necessary, as either too much or too little will cause the fruit to drop.

Cuc.u.mbers.--The heat of the beds, which will be found to decline rapidly during cold winds, should be kept up by fresh linings; and air to be given daily, to allow the superfluous moisture to escape, taking care to prevent the wind from entering the frames by placing a mat or canva.s.s before the openings.

Figs.--A free supply of water, with liquid manure occasionally, to be given to the most forward crop. Where there is the convenience, the trees in pots are generally placed in a pit of rotten leaves into which they root, and where they are allowed to remain until they have borne their crops and ripened their wood, when the roots are cut back to the pot. Trees planted out succeed best when confined in brick pits, where short-jointed fruitful wood is produced without root pruning, which is necessary when the roots are allowed to ramble without control.

Melons.--This is a good time to ridge-out plants, as the sun will have a powerful and beneficial influence at the time when it will be most wanted to ripen off the fruit. Pot off young plants, and sow seed for a succession.

Pines.--Continue to keep up a regular and moist heat; to be supplied with soot or other manure water occasionally during the whole time they are swelling the fruit until they attain their full size; watering and syringing overhead should be withheld when they begin to change colour, to give flavour to the fruit. The succession-plants recently potted to be very moderately supplied with manure water, and in a very diluted state until their roots reach the sides of the pots.

Strawberries.--Introduce succession-plants under gla.s.s, according to the demand. Keep the atmosphere dry when the plants are in bloom and near the gla.s.s; admitting at all opportunities a good supply of fresh air without currents.

Vines.--Persevere in thinning the bunches, as it is a mistake to leave more on the Vine than it is likely to finish off to perfection. The borders to be examined that a gentle warmth may be maintained at the roots. When the Vines are planted inside, apply good soakings of manure water occasionally. Thin the shoots of the late Vines as soon as the bunches are perceptible.

THIRD WEEK.

GREENHOUSE AND CONSERVATORY.

Proceed as diligently as possible with the repotting of such of the hardwooded greenhouse plants as require it, so as to start them in good time to acquire a vigorous growth.

Cacti.--The chief point in managing these plants is to allow them an alternate period of rest and growth. To be grown in a mixture of lime rubbish and loam, with a little cowdung, and in well-drained pots. In summer to be fully exposed to the sun, and well watered; and from October to March to be kept perfectly dry.

Calceolarias (Herbaceous).--To be shifted into larger pots in a compost of equal quant.i.ties of decayed turf, leaf mould, good sandy peat, old cowdung, and silver sand, with plenty of drainage and moss on the crocks. To be kept close for a week, after which air may be freely given, avoiding currents of cold air.

Heaths.--Every vigorous shoot that is taking the lead to be stopped, to produce a more uniform and compact plant.

Lilium lancifolium.--To be potted either in a good peat, with a little silver sand, or in a light sandy loam, using also some silver sand. The bulb to be placed two or three inches deep from the top of the pot to allow room for the stem-fibres to penetrate the soil.

Pelargoniums.--The plants potted last month to be stopped back. The house to be kept rather close for a week or ten days, to a.s.sist them to push out their eyes. Those intended to bloom in May, that have not been stopped since cutting down, will be putting up their trusses, on sunny days syringe them lightly, and shut the house up warm, with the sun upon it, about three or four o'clock in the afternoon.

STOVE AND ORCHID-HOUSE.

Keep a lively growing temperature here during the day, with a plentiful supply of moisture. Syringe, and shut up early, with 80 or more, allowing a fall of 20 during the night. Shake out and repot in succession the stove plants that have been previously recommended to be headed back, and encourage a free growth by plunging them, if possible, in bottom heat. Smaller pots to be used until they have filled them with roots, they may then receive one bold shift that might probably be sufficient for the season.

FORCING-HOUSES.

Cherries.--These may now want thinning if too thickly set; but the operation must be influenced by the energies of the tree and the action of the roots. Endeavour to keep the atmosphere like fine mild weather in May. During the period of the stoning of the fruit, give the trees no water at the roots, as this is generally one of the chief causes of so much of it falling off at that time.

Figs.--When the fruit is swelling off, the trees to be liberally supplied with water. The young shoots to be stopped to four or five eyes, with the exception of those that are required to fill up vacancies.

Melons.--Continue the thinning, stopping, training, &c., as required. Set the early crops when in blossom, keeping a dry and lively atmosphere during that period. Air to be given freely in favourable weather, but cautiously, with some contrivance to break cold winds. Do not allow a plant to swell a fruit until sufficiently strong to sustain it.

Peaches.--Be moderate in the application of fire heat to those that are stoning (they make little or no progress in swelling during the period)--say 65 by day and 60 by night; but when they commence their second swell increase the heat moderately. Stop all luxuriant shoots, and thin out in the second house all cl.u.s.ters of fruit when about the size of Peas.

Pines.--The fruiting plants will be benefited by a watering with manure water as soon as the bloom is set. Succession plants, if recently shifted, to be shaded in the middle of the day if the sun is powerful; to be kept rather close and dry, except slight sprinklings over the tops, until they have taken root, when they may be watered freely, and will generally require no more to be given for a week or ten days.

Vines.--The atmosphere in the early house, where the bunches have been thinned, to be kept pure by a gradual increase of air and moisture. The night temperature to be kept up to 65, with an increase of 10 by day, and even more in bright sunshine. The second house may now be in bloom, and will require attention in tying the shoots and keeping up the necessary amount of heat, with less moisture. Where the fruit is set, give the Vines a good syringing, to wash off the flowers; after which the leaves and fruit should not be again wetted, but to be supplied with atmospheric moisture by watering the floor of the house, and sprinkling the flues or pipes, or from evaporating-troughs or pans. Give plenty of tepid manure water to the Vines fruiting in pots.

FOURTH WEEK.

GREENHOUSE AND CONSERVATORY.

As the great proportion of greenhouse plants are now commencing, or are in active growth, constant attention will be required for the judicious regulation of temperature, and for the admission of fresh air during fickle and ungenial weather, and in the supply of water to the roots, and atmospheric moisture.

When settled fine spring weather has arrived, every plant which inhabits a pot should be brought at once under review, and put in proper condition for the growing season. No fear need then be apprehended from potting. Keep up a moist atmosphere by sprinkling, &c., and admit plenty of air, bearing in mind former directions as to draughts, &c. If the plants in the borders, or any of the climbers, are dry, give them a good soaking of weak, tepid manure water. Trellis climbers to be frequently attended to--stopping, training, and arranging their shoots.

Balsams.--Encourage the growth of them and other such tender annuals by potting them when the roots begin to cl.u.s.ter round the side of the pot.

Calceolarias (Herbaceous).--Shift on the young stock, keeping the plants well down in the pots, so as to bring the earth in the pots up to the lowermost leaves, to induce the plants to throw out fresh rootlets from the stem. Keep a sharp look out for green fly.

Climbers.--Prune off superfluous shoots; stop or pinch out the tops of gross leaders, and keep them neatly tied and trained.

c.o.c.ks...o...b...--To remain in small pots until they begin to show flower.

Dahlias.--Pot off cuttings as soon as struck.

Fuchsias.--Continue to shift young plants into larger-sized pots, according to their height and strength; to be kept growing by placing them in a brisk, moist heat. Cuttings to be potted off as soon as they are sufficiently rooted; to be placed in a temperature similar to that in which they were struck.

Sow in heat seeds of stove and greenhouse plants.

STOVE AND ORCHID-HOUSE.

Attend to regular shifting, watering, and a free and healthy circulation of air, without draught, early in the morning to stove plants. Continue to cut down, disroot, and repot, as advised last week, those which have been flowering through the winter. To be then favoured with a bottom heat of from 75 to 80, and slightly shaded during bright sunshine.

Some of the young plants in the stove which are growing on for specimens will probably require a second shift, see to them in time; and if they are in good health treat them liberally by giving a large shift, especially to plants of free growth. Give plenty of air at all favourable opportunities, and saturate the atmosphere with moisture. The surface of the tan to be stirred once or twice a-week, and sprinkle it occasionally with manure water, to produce a moist, congenial atmosphere about the plants. Shut up with plenty of sun heat. Look sharply after mealy-bug and thrips.

Achimenes.--The plants established in small pots may be removed into the flowering-pans, putting six plants into a pan.

Orchids.--Increase the temperature, and ply the syringe among them, as they will now grow rapidly. Be careful not to throw too much water over those sending out succulent flower-stalks, for they may damp off. Ferret out and destroy c.o.c.kroaches, woodlice, and snails.

_Calantha veratifolia_, _Neottia picta_, _N. elata_, Phaius of sorts, some varieties of Stanhopea, _Zygopetaltum Mackayii_, and other such Orchids that are now making their growth, would be benefited by an application of clear, diluted manure water occasionally; a kindly humidity to be kept up, and the shading to be in readiness for use during bright mid-day sun.

PITS AND FRAMES.

Sow tender and half-hardy annuals; pot off those already up; give air daily, and never allow the plants to flag for want of water. Pot off cuttings of Dahlias, and continue the propagation of Fuchsias, Heliotropes, Petunias, Verbenas, and bedding-plants generally.

FORCING-HOUSES.

Beans (French).--Give them, when in a bearing state, a liberal supply of manure water, and see to keeping up a succession of them.

Cherries.--When you are sure that the fruit is finally stoned, the temperature may be raised a few degrees; air and water overhead to be liberally supplied.

Cuc.u.mbers.--As soon as the frames are uncovered in the morning give a little air for an hour, to let the stagnant and foul air pa.s.s off, when they may be closed again till the day is further advanced. As soon as the princ.i.p.al shoots have reached the side of the frame, never allow any of the laterals to grow more than two joints before being stopped. Stop frequently, and thin liberally; where two fruit show at a joint pinch one away.