Australian Mint Bush
Australian natives with minty smelling foliage and an enormous profusion of small flowers, usually in shades of purplish blue or white. Although they tend to be short-lived, they grow quickly and put on a good show. Prune them carefully; avoid cutting into bare wood or doing any other hard pruning. There are many species available; look for them at specialists’ nurseries or at plant sales held by botanical gardens. These plants require excellent drainage.Prostanthera rotundifolia
Grows to 6 ft. tall and nearly as wide, producing purple-blue flowers in spring. Selections include ‘Ghost Cave’, with grayish green leaves and purple flowers; ‘Glen Davis’, with an especially profuse showing of dark purple flowers; and ‘Rosea’, to only 3–4 ft., with dark green leaves and deep rose-pink flowers.
These Sisyrinchium relatives have dark green, grasslike leaves arising from short, woody rhiz...
Clumps reach 1–2 ft. high and 1 ft. wide. Smooth-edged leaves. Pale to bright blue flowers are a...
Dense grower to 3–4 ft. tall and wide; becomes sparse and woody with age. Young plants are thick...