Part 42 (1/2)
==Balsam==.--Towards the middle of the month a final sowing may be made with safety in the open ground. Former seedlings will need potting on until they reach the eight-inch size, and at each transfer put the plants in rather deeper than before; this encourages the growth of roots from the stems. While increasing the pot-room not a bud will show; but immediately the roots are checked by the pots, flowering will commence.
The old method of stopping and disbudding not only spoiled the plants, but robbed them of the finest flowers, which are invariably produced on the main stem. Since the natural method of growing Balsams has been in favour it is usual to see grand specimens covered with immense flowers.
==Campanula==.--The hardy perennial varieties may be sown in the open during the present month to provide seedlings for transplanting to flowering positions in autumn. Should there be any good reason for delay it will not be too late to sow in June or July, but the finest specimens are generally produced from May sowings. The best results can always be obtained by raising the required number annually and discarding the plants after they have flowered in the following season.
==Cineraria.==--Those who care to have Cinerarias in bloom during November and December may do so from a sowing made at the beginning of April, but it is not usual to start so early. Our own practice is to sow twice, during the present month and again in June, to insure a succession. From this month's sowings we look for our finest plants. The Cineraria is easy to raise and to grow, but it will by no means take care of itself.
It has so many enemies that unusual vigilance is necessary to flower it to perfection. It thrives in a compost of turfy loam, with a little leaf-mould added; but the soil should not be over-rich, or there will be much foliage and few flowers. Still, as the plant is a rapid grower, it must not be starved, neither must it suffer for lack of water. Pots or pans may be employed for the seed; and as the young plants grow freely, they may go straight to thumb pots without the usual intermediate stage of p.r.i.c.king off.
==Coleus== should be finally s.h.i.+fted into 48-sized pots. If signs of decline become manifest, weak liquid manure water given occasionally will revive the plants and intensify their colours. During the summer any ordinary greenhouse or conservatory will suit them, provided they are shaded from fierce suns.h.i.+ne.
==Cyclamen.==--The strongest seedlings should now be ready for 60-sized pots. Abundant but judicious ventilation, plenty of water, and freedom from aphis, are the conditions to be secured.
==Dahlia.==--Make the ground on which this flower is to be planted thoroughly rich. It is a rapid grower, and cannot attain to fine proportions on a poor soil. If the plants are carefully prepared for the change by free exposure on genial days, and also during warm nights, they will scarcely feel the removal. When first put out, dress the surrounding soil with soot to prevent injury by slugs, which show a decided partiality for newly planted Dahlias. Give water freely when requisite, and in staking the plants take care that the ties do not cut the branches. These ties will require attention occasionally during the summer and autumn.
==Delphinium.==--Sow the perennial varieties on a prepared bed. Thin early, without removing all the weaker seedlings, and when sufficiently advanced to bear removal, transfer to borders where the plants are to flower.
==Hollyhocks== may be put into the borders when the weather is quite warm. Wait until the end of the month, or even the beginning of June, rather than have them nipped by an untimely frost. Like the Dahlia this plant must have unstinted supplies of water and abundance of manure. A tall stake, firmly fixed, will also be necessary for each plant.
==Nicotiana.==--Seed may be sown on an open, sunny border, but it is a waste of seed and labour to put it into poor soil. Prepare the ground beforehand by deep digging, and by incorporating plenty of manure. If the near presence of other plants renders this impossible, drive a bar into the soil and work a good-sized hole. Fill it with rich stuff to within a few inches of the surface, and finish with fine soil, on which sow the seed. This method can only be adopted for light land. In the event of a cutting east wind after the seedlings are up, improvise some kind of shelter until the danger is past.
==Petunias== are very sensitive under a frost or cold wind. Therefore be in no hurry to bed the plants until quite the end of the month or beginning of June, especially if the weather appears to be at all threatening. A good mellow soil, free of recent manure, suits them. If unduly rich, it will strengthen the foliage at the expense of the flowers, and will also postpone the blooming until late in the season.
==Portulaca.==--It is useless to sow until the temperature is summerlike.
If necessary, wait until the close of the month, or longer, before putting in the seed. This flower will endure neither a moist atmosphere nor a retentive soil. Sow on raised beds of light soil, the more sandy the better; and in seasons which speedily burn the life out of other plants, Portulacas will display their beauty, no matter how fiercely the sun may beat upon them. Water will occasionally be necessary, but it should never be given until there is obvious need for it. Portulacas are easily grown in pots or window-boxes, and they will bloom profusely where many other flowers only wither and die.
==Primula.==--Almost every season witnesses the advent of some novelty in this flower, either in colour or in form. And the plant is now worth growing for the beauty and diversity of its foliage alone. The flowers range from pure white through all shades of tender rose up to a deep, rich crimson. After years of earnest effort, two beautiful blue flowers have been obtained. There are also several elegant double strains, and these possess a special value for bouquets, because of their enduring quality. All the varieties, including the popular Star Primulas, can be grown with ease in any soil which is fairly rich and friable. Equal parts of leaf-mould and loam, with a little sand, will suit them to perfection. Fill the pots firmly, taking precautions to insure effective drainage. A thin layer of silver sand sifted over the soil will aid an even sowing by showing up the seed. As a finish, shake over just enough fine soil to hide the sand. Thin sowing is important, because the most reliable new seed is almost certain to germinate at intervals, and the plants which come first can then be lifted without imperilling the remainder. p.r.i.c.k off as fast as ready round the edges of small pots, and shade until established. Then give air more and more freely.
==Stock, Ten-week.==--The preparation of the soil is the first business, and whether the Stocks are intended to be grown in small groups or alone in beds, the treatment should be the same in either case. With light land there is no difficulty; it is only needful to dig it well, and to incorporate a sufficient quant.i.ty of decayed manure. If disposed to incur a little extra trouble to give the plants a start, take out some soil with a trowel, and fill the hole with compost from the potting shed. This course is indispensable on heavy land; and a.s.suming it to be rich enough, the quickest and most effectual way is to make drills six inches deep at the proper distances, and nearly fill them with prepared soil, in which the Stocks can be planted. For a short time afterwards provide shelter from the midday sun, but do not keep them covered a moment longer than is necessary. In planting it must not be forgotten that an uncertain proportion of single specimens will have to come out.
On this account it is advisable to put them in small groups, and remove the surplus even if they are double,
==Sweet William==.--The introduction of several new varieties has created a fresh interest in this fine old garden favourite. This is one of the hardy biennials that will not be hustled. On a nicely prepared bed in the open sow thinly in drills either during this month or up to July. In due time transplant in rows, affording sufficient s.p.a.ce for each specimen to become stocky, and in autumn transfer to flowering quarters.
==Verbena==.--Beds for Verbenas should be rich, mellow, and very sweet. A poor soil not only produces poor flowers, but it materially shortens the blooming period. Peg the plants down from the outset, and allow them to cross and recross each other until there is a sheet of glowing colour.
==Wallflower.==--This fragrant spring flower is not always grown as well as it might be. It is often sown too late to become established before winter sets in. Sow now in drills nine inches apart on friable loam.
Thin to three inches apart, and transplant the thinnings. A little later repeat the operation, so as to leave the plants at a distance of six inches in the rows. a.s.sist them with water if necessary.
==Zinnia.==--A sowing in the open ground about the middle of the month will provide plants in gardens where there are no means of raising them artificially at an earlier date. Even those who possess a stock will be wise to put a final sowing in the open. If possible, choose a sunny border sloping to the south, and make the soil rich, fine, and rather firm. Drop seeds in little groups of three or four at each spot, allowing fifteen or eighteen inches between the groups. Cover lightly, and eventually thin the plants to one at each station.
==JUNE==
The days are now at their longest, and plants in pits and houses should have the full benefit of it. By opening the lights early, and shading in good time, the flowering period will be greatly prolonged. Ply the syringe over plants infested with aphis until they are quite clean. In some instances, it may even be wise to pinch off young shoots which are covered with the fly.
Keep Verbenas, Petunias, and the taller varieties of Phlox Drummondii pegged down; this furnishes the beds and helps to check evaporation.
Rain and watering alike tend to harden the ground; and as this condition does not favour growth, the surface should be frequently broken with the hoe.
==Anemone.==--Those who grow this flower from seed should make another sowing now or in July, even if they have thrifty plants from the February sowing. By this arrangement the flowering period is prolonged, and the finer blossoms will probably come from this month's sowing.
==Aquilegia== seed will germinate now in the open ground, and the plants need no protection during winter.