This section is from the book "The Gardener V1", 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.
These are rather troublesome little shrubs to grow, but quite pretty enough to induce an ardent plant-grower to try, and they reward him if he succeeds in growing them to perfection - a point he is sure to attain if his ardour is well directed. One of the most important points in their management is watering: they are peculiarly impatient of anything like a water-logged condition of soil. Therefore see to the drainage, that it is adequate to begin with, and that it is kept in good condition afterwards. It is also requisite that the soil should be of a porous yet firm and even hard texture. Fibrous peat and loam in equal parts, with gritty sand, very small nodules of charcoal, added in such quantity as will render it free and open, is a very suitable compost, and it should be packed very firm in the process of potting. A greenhouse temperature of from 45° to 50° is necessary in winter; and in summer when making their growth they will bear a good warmth, with light dewings from the syringe after scorching bright days. In such weather they should have a little 6hade; it should not be dense, but be given them for about four hours in the hottest part of the day.
Cuttings are somewhat difficult to strike; but when they are attempted, the shoots should be just beginning to harden, and be inserted in sand in a mild bottom-heat and a cool atmosphere under a bell-glass. They usually produce seed; as many of these as are wanted for propagation should be allowed to ripen, and the rest removed so as not to tax the energies of the plant, which after flowering should be allowed to be expended on the growth.
A close-growing twiggy plant of small growth, with smooth simple linear leaves densely crowded on the branches. The flowers are violet, produced in clusters at the extremities of the branches, and appear in early summer, and last till late. It belongs to the family Leguminosse, and is a native of S.W. Australia.
Like the last, this sort is twiggy in habit, and the branches are closely clothed with narrow linear sharp-pointed leaves, and with a grey-green powder. The flowers are borne in the axils of the leaves, chiefly at the extremities of the branches. They are purple, and appear in the spring months. Native of Swan River.