This section is from "The Horticulturist, And Journal Of Rural Art And Rural Taste", by P. Barry, A. J. Downing, J. Jay Smith, Peter B. Mead, F. W. Woodward, Henry T. Williams. Also available from Amazon: Horticulturist and Journal of Rural Art and Rural Taste.
If, by oversight, any plants have green fly, give them a good fumigating with tobacco, two or three nights in succession, before removing them outside. We mention this, for sometimes it is inconvenient to fumigate when required - such as when a number of plants are in flower in the house, the smoke would spoil the flowers - but all plants should be free from insects before planting outside, or the plants will be much checked by their ravages before they can make a free start.
If the stock of any desirable variety of coleus is short, it is yet time to propagate; the cuttings will root in a few days and be ready to plant out by the end of the month, which is quite early enough in this district. Any late bouvardias should be potted at once, to be planted out at same time. Balsams, amaranthus, castor - oil plants, and thun-bergias, grown on in readiness for outside - a few of the two former are useful as pot plants for the greenhouse - and the thunbergias are a pretty basket plant, but very subject to red spider.
Hanging Baskets - Baskets should be filled, both for greenhouse and also for any outside place required. Many of those filled for sale are not a success for permanent decoration; we do not blame the trade for this, for the buyer requires the basket to look well filled at once, for which reason there are usually about four times as many plants in it as can possibly grow, and in many cases there is only room for a good handful of soil, so that it is dry most of the time; we also often see plants in a quart basket which if allowed full space would fill a bushel. We will name a few desirable plants which will do well in moderate sized baskets: The best ivy is Japonica versicolor, this is also quite hardy here. Ivy-leaved geranium, L'Elegant, Abutilon vexilla-rium pictum, Torenia Asiatica, Panicum va-riegatum, Achyranthes of sorts, Cineraria maritima, Peristrophe angustifoleum variega-tum, Begonia Sandersoni, Digswelliana, Par-nelli, and, if required, some of the moderate sized foliaged begonias; but these grow too large for baskets generally, and so do coleus. For baskets in full sun nothing is more satisfactory than the Echeverias, Sempervivums and the new Othonna crassifolia; this latter plant will flower all the year.
These plants can be used in the most simple and cheap baskets if filled in the way we have mentioned in a previous number for achimenes. Some of the ferns, and also Selaginellas also, make nice baskets for a shady position, but these are never very satisfactory if exposed to the sun or a dry atmosphere; among the best are Da-vallias, Lygodiums, Nephrolepis, Niphobolus lingua, Oleandra nodosa, Onychium japoni-cum, several Polypodeum adiantums and Selaginellas Martensii and Martensii variegatum, Cassia, and Cassia arborea denticulata, Gale-ottia, stoloniferum and rubricaulis.
Caladiums may be potted at once into the sized pot it is intended to grow them through the season; as soon as the first pot is well filled with roots the plants should have plenty of room, for if planted too close the foliage is drawn up long and upright, so that it is never so handsome; the color of the leaves are best under a moderate shade from bright sun.
Double White Primulas should be removed to a cold frame under a north wall, for these are difficult plants to keep well through the summer, in this climate; it is too hot and dry.