This section is from the book "The Gardener V3", by William Thomson. Also available from Amazon: The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener.
The plants in this structure should now be in vigorous growth; and proper attention to watering, free drainage to the pots or beds where plants are turned out naturally, cleanliness from insects or dirt, careful ventilation (preventing cold drying winds from passing through the house), judicious shading or potting on the plants as they require it, are the chief wants of stove-plants between May and September. Get collections in batches (in pits or other positions) to grow on for winter decoration. Now is the time to get a stock in order. Among the most useful are Poinsettias, Bouvardias, Eucharis, Epiphyllums, Gardenias, Plumbago rosea, Calanthes, Libonias, Thyrsacanthus, Scutel-larias, Euphorbias, and Begonias. They should have good wholesome soil. Peat, charcoal, turfy loam, and sand, well chopped to pieces and mixed, suit most of them; but one can ascertain the kind of soil wanted by examining that in which the plants are growing. If they are doing well in such soil, the same kind may be used again fresh and sweet. Gloxinias, Achimenes, Gesnerias, Allamandas, Anthuriums, Rondeletias, Stephanotis, Clerodendrons, Bougainvilleas, Begonias, Jasminum, Sambac (a continuous-flowering white gem), are among the free-flowering stove-plants at present.
Temperature may range from 65° to 70° with fire-heat, but it is hoped not much of this may now be wanted. Shut up, after syringing, with a good sun-heat 80° to 85° or so. A breath of air put on at top of structure at night is a natural strengthening agent to the plants. Shade from sun; but when there is no bright weather, the plants are better without shade. M. T.