This section is from the book "The Gardener's Monthly And Horticulturist V23", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
The modern flower garden is a good deal dependent on the greenhouse for its summer beauty in these days. It will be wise, therefore, to look out for a good stock of bedding plants in time; by striking cuttings of such things as grow rapidly, and sowing seeds of such annuals as may be advanced to advantage.
Fuchsias may now be readily struck from the young growth of the old plants, which will make excellent blooming plants for the next summer season.
Dahlias should now be brought forward. A good plan is to shorten the extremity of the roots, put them in six-inch pots and place in a warm greenhouse. In a few weeks they will sprout, when they should be shaken out, divided with a piece of root to each sprout, and separately potted in four-inch pots.
Pansies are now coming into flower. They like an airy frame, where they will not be roasted in mid-day nor exposed to drying winds, and yet have a free circulation of air and plenty of light. Planted out in such a frame, and the old shoots cut away as soon as the plant has done flowering, the plants will keep healthy over till the next season. Superior varieties can be raised from seed. Choose those with the roundish petals, best colors, and the first flowers that open, to raise seed from.
Camellias will require rather more water while growing than at other times. Just before they grow is a good season to graft. Cut down the stock, cleft graft in the crown, wax, and plunge in a bottom heat of 70°. A great many kinds may be had on one plant by the bottle system. A shoot about to grow is obtained, and attached to the stock as in inarching, the end of the shoot being put in a small phial of water suspended beneath it. This plan does best, however, with half ripe wood in July.
Geraniums, Pelargoniums, Cinerarias, and Chinese Primroses, must be kept as near the glass and light as possible; they do little good in shady places. Keep off the green Aphis - for this on a small scale there is nothing like hot water; on a large scale, tobacco smoke, in several successive light doses, is still the best remedy.
Azaleas succeed well by grafting with the half ripe shoots of the present season's growth on plants raised either by seeds or cuttings. Old wood does not take readily.
Chrysanthemums should now be raised from cuttings for fall flowering. They make better blooming plants than offsets.
For a time these plants fell back in public estimation, but some newer styles have brought them back again.