LACHENALIA
An elegant plant which is not quite hardy enough to be trusted in the open ground; but it is the easiest matter possible to grow it well in the greenhouse. The bulbs should be potted as soon as they begin to grow in the autumn, and several bulbs may be put into each pot. There can be no better soil than turfy loam, without manure or sand. It is of the utmost importance that the plants should have abundance of water, when they will produce leaves two inches across, and spikes of flowers fully double the size of those commonly met with. An admirable use for these bulbs is to insert them all over the outside of hanging-baskets, which they will cover with the most graceful display of aërial vegetation imaginable, the flower-spikes turning upwards, and the leaves hanging down.
LEUCOJUM
The Spring Snowflake (L. vernum) blooms as early as February or March, and the Summer Snowflake (L. æstivum) comes into flower in May and June. They closely resemble the Snowdrop, but are much larger than that well-known spring favourite. The bulbs are perfectly hardy, and will grow in any garden soil. Plant in clumps three inches deep, any time from the end of September until the middle of November.
LILIES
Hardy border Lilies are among the most useful garden plants known. They are peculiarly hardy and robust, requiring no support from sticks or ties; several of them remain green all the winter, and are capable of resisting any amount of frost. If left alone, they increase rapidly, and become more valuable every year. We will say nothing of their beauty, for that is proverbial; but it may be useful to observe that many of the most lovely Lilies, usually regarded as only suitable for the greenhouse, and grown with great care under glass, are really as hardy as the old common white Lily, and may be grown with it in the same border. To grow Lilies well requires a deep, moist, rich loam. A stubborn clay may be improved for them by deep digging, and incorporating with the staple plenty of rotten manure and leaf-mould. They all thrive in peat, or rotten turf, or, indeed, in any soil containing an abundance of decomposing vegetable matter. The autumn is the proper time to plant Lilies, but they may be planted at any season, if they can be obtained in a dormant state or growing in pots. They should be planted deep for their size, say, never less than six inches. After they have stood some years it is necessary to lift and part the clumps, when the borders should be deeply dug and liberally manured before replanting. If the stems of Lilies become leafless and unsightly before the flowers are past, it is a sign that the roots are too dry, or that the soil is impoverished; and therefore, as soon as the stems die down, they should be lifted, and perhaps transferred to a more favourable spot.
Amaryllis.—These magnificent plants do not require the high temperature in which they are usually grown, nor should they be allowed to remain for a great length of time dust-dry, as we sometimes find them. It is important to remember that they have distinct seasons of activity and rest, but must not be forced into either condition by such drastic measures as are occasionally resorted to. The proper soil for them is turfy loam, enriched with rotten manure, and rendered moderately porous by an admixture of sand. The light soil in which many plants thrive will not suit them; the soil must be firm, and somewhat rough in texture. When first potted, give them very little water, and promote growth by means of a bottom heat of 65°. Increase the supply of water as the plants progress, and shift them into 6-inch pots for flowering. While they are in flower they may be placed in the conservatory, or wherever else they may be required for decorative purposes. When the flowers have faded take them to the greenhouse to complete their growth, after which dry them off slowly, but with the clear understanding that they are never to be desiccated. They may be wintered in the greenhouse, and should certainly be placed where they will always be slightly moist, even if a few leaves remain green throughout the winter. Frequent disturbance of the roots is to be particularly avoided in the cultivation of Amaryllis, and therefore it is desirable to allow them to remain in the same pots two or three years; or if they are shifted on, it should be done in such a way that the roots are scarcely seen in the process. Top dressing and liquid manure will help them when they have been some time in the same pots.
Lilium auratum.—This magnificent Lily has proved to be as hardy as the white garden variety, and is now freely planted in borders and shrubberies where the noble heads of bloom always command admiration. But the splendour of the flower will continue to insure for it a high degree of favour as a decorative subject for the conservatory. When grown in a pot the best soil is sandy peat, but it will flower finely in a rich light mixture, such as Fuchsias require. It is advisable to begin with the smallest pot in which the bulb can be placed, and then to shift to larger and larger sizes as the plant progresses, taking care to have the bulb two inches below the soil when in their flowering pots, because roots are thrown out from the stem just above the bulb, and these roots need to be carefully fed, as they are the main support of the flowers that appear later. When the flower-buds are visible, there should, of course, be no further shifting. In respect of temperature, this is an accommodating Lily; but as a rule a cool house is better for the plant than one which is maintained at a high temperature. The supply of water should be plentiful during the period of growth and flowering, but afterwards it can be reduced.
Lilium Harrisii (The Bermuda, or Easter Lily) is of the longiflorum type, but the flowers are larger, and are produced with greater freedom than by the ordinary L. longiflorum. Moreover, the Bermuda Lily flowers almost continuously. Before one stem has finished blooming another shoots up. This perennial habit gives it a peculiar value for the greenhouse, and renders forcing possible at almost any season.
Immediately the bulbs are received they should be potted in rich fibrous loam—the more fibrous the better—and be placed in a cold frame. They need little water until growth has fairly commenced, after which more moisture will be necessary. So far as safety is concerned, they only require protection from frost; but for an early show of bloom artificial heat is imperative. The temperature should, however, be very moderate at first, and rise slowly. When the buds show, a top-dressing of fresh loam and decayed manure will be helpful, and to allow for this the soil must be two inches from the tops of the pots when the bulbs are first potted. After producing two or three flowering stems, it will be wise to place the pots out of doors and give less water, or the bulbs will be exhausted. But they must never be allowed to become quite dry, and after a partial rest of six weeks or two months they may be re-potted in fresh soil and started for another show of bloom.