HERBACEOUS PLANTS
Plants of this character will, by the first of the month, begin to grow. The best time to divide and fresh pot them is when the young shoots are about one inch above ground. See under the head Shifting in this month.
OF CAPE BULBS, &c
Cape Bulbs, such as Lachenàlias, Oxalis, Ixias, Gladìolus, Watsònias, Babiànas, &c. will in many of the species be showing flower. Keep all of them near the glass, to prevent them from being weak and unsightly.
Hyacinths, Tulips, Narcissus, &c. Those that have been kept in the Green-house during winter will be in great perfection. Have all the flower stems tied up neatly to small stakes, (which, if painted green, will look much better,) and keep them from the direct rays of the sun. In the front of the house perhaps will be the best situation. They must be freely watered while in flower. Where there is convenience, it will be essential to keep the pots in saucers containing water; it will strengthen both stems and flowers, and likewise preserve them longer in perfection. Those that are blooming should be put aside, and watered sparingly, until the foliage begins to decay, when the pots may be laid on their side to ripen the bulbs.
REPOTTING
If you have any of the following plants that you are desirous of encouraging, they should be repotted this or next month at the latest. Large plants will not require it, if they were done in August. Pots one size larger than those that they are in, are sufficient. Acacias and Mimòsas being now united into one genus, there are above two hundred species. About one hundred and thirty belong to the Green-house. Amongst such a beautiful family, both for elegance of flower and beauty of foliage, it will be difficult to specify the most handsome and desirable for this department. A. móllis, A. glaucéscens, A. verticilàta, A. florabúnda, A. diffùsa, A. armàta, A. verniciflùa, A. decúrrens, A. armàta– weeping variety, A. púbescens, A. leucolòbia, A. decípiens, A. fragràns, A. pulchélla, A. lophántha, A. myrtifòlia, &c. These will afford a great variety of foliage, and are very desirable, flowering principally in winter, or early in spring. The flowers of those belonging to the Green-house are of a yellow or straw colour; the most of those that are red or purple, with the celebrated medicinal species, belong to the Hot-house, for which see May. There are some of the species very subject to the white scaly insect, which must be attended to, that they may not get to any extent.
Agapánthus, three species. They are all blue flowers. A. umbellàtus is very celebrated, and well known in the collections of the country. There is a variegated variety of it highly desirable, the foliage being white striped, and frequently the flower stem and the flower are as good as the species. They have very strong roots, and require plenty of freedom. Plants are always large before they flower, and when the pots, by frequent shifting, become inconvenient, the plant should be divested of all the earth, and, if too large, divide it, cutting off the strongest of the fibres; then they will admit of being put into smaller pots. If the above operation is performed in August or September, it will not retard their flowering, which, when well grown, is very handsome, the flower stem arising about three feet, and crowned with twenty or thirty brilliant blue blossoms, continuing to bloom successively.
Alonsòas, five species, all soft wooded, small, shrubby plants, with scarlet flowers. A. incisifòlia is known amongst us under the name of Hemímeris urticifólia, and A. lineàris as H. lineàris. If well treated, they form very handsome plants, and flower freely. They will not bear strong fumigation; and, when the house is under that operation, they must be put on the floor of the Green-house, where they will not be so much affected. They flower from May to August.
Aùcuba japónica is the only species. The flowers are small and almost insignificant, colour purple; but the foliage is a desirable object, being yellow spotted, or blotched. It is tolerably hardy, and withstands our winters. It prefers shade, and, if the situation was such when planted out, it would grow more freely. The hot rays of the sun are very prejudicial to its growth. It is an evergreen shrub, and very desirable.
Anagyris, three species, evergreen, pea flowered shrubs, flowers yellow, nothing very attractive in either of the species. A. fœtida is found in many collections, and we have no doubt but it may prove, in this country, a hardy shrub.
Azàleas, seven of the China species, which are those we shall enumerate here. The one that has been longest known in the collections of this country is A. índica, a most splendid shrub, with scarlet cup flowers and dark spots. A. índica àlba, flowers of the purest white, and rather larger than the former. A. índica purpùrea pleno, double purple. This variety is not so fine as any of the others. Properly it is not purple, or, if it may be termed so, the colour is very light; the flower irregular. A. índica phœnícea is magnificent. The colour is darker, and the flower larger than A. índica, and a free grower. A. sinénse, flowers large, yellow. The wood is much stronger than any of those previously mentioned. It bears a very high character in Europe. It has not yet flowered in our collection, but appears as if it would in the ensuing season (1832). All the above ought to have a situation in every Green-house. They flower from March until May. There are two other varieties which have not come under our observation. Do not shift or repot them, if they are in flower, until the flowering is over. The pots must be well drained; and the plants require a shaded situation. If they are properly treated, they will be completely covered with their showy flowers every year.
Aòtus, two species, both fine leguminose plants. A. villòsa, is a native of Van Dieman's Land; and A. virgàta, is from New Holland. The former is preferable. Both have yellow flowers, and are small evergreen shrubs.
Andersónia sprengelioídes, is the only species, and closely allied to Epácris, flowers small, and of a pale yellow colour. Drain the pots well; flowers from March to August.
Arbutus, eight exotic species, and six varieties. They are generally hardy in England; but we question if they stand out in the middle states. A. unìdo rùbra has the finest crimson flowers; A. serratifólia, the largest panicles; and A. Andráchne, the finest foliage. They flower in nodding panicles; the flowers are principally white, tinged with green, and wax-like. They bear a pretty fruit similar to a strawberry; hence it is called strawberry tree, and the fruit will remain on the bush a long time. They are very fine evergreens, and if any of them become acclimated, they will be a great acquisition to our gardens.
Bánksias. There are about thirty-two species, all curious in flower, and handsome and various in foliage; flowers in large heads and cone-shaped anthers, mostly green, and continue a considerable time in flower; produces a cone in shape of a pine, but not imbricate. The substance is as hard as bone, and contains many seeds. A cone of B. grándis in our possession weighs one pound twelve ounces, and contains about 107 seeds. Those most admired for the foliage are B. dentata, B. æmula, B. serràta, B. latifòlia, B. grándis, which is the largest. B. speciòsa has the longest foliage. B. Cunninghámii, B. spinulòsa, B. palludòsa, and B. rèpens, these will afford a good variety. B. verticillàta is entirely different in appearance from the others.
They should be well drained, and placed in an airy part of the Green-house. Great care should be taken that they do not get too dry, for they seldom recover if allowed to flag for want of water. This genus is named in honour of Sir Joseph Banks, a distinguished promoter of the study of natural history.
Bignònias. Those of this genus belonging to the Green-house have been divided to Tecòma, and there are only three for this department. T. austràlis known as B. Pandòræ; T. grandiflòra, known as B. grandiflòra, and has large and magnificent clusters