A herbaceous perennial that is a troublesome garden escapee in many parts of Australia. Originating from South America, it is widely planted as it has attractive pale lilac to violet-blue flowers that appear for several months from mid-spring and is an effective ground cover. However, it has underground stems and rhizomes that persist even after bushfires and is capable of resprouting in a very short time.

A herbaceous perennial or subshrub, with erect or ascending branches to about 0.4 m that are typically hairy. It has blue to deep purple typical convolvulusshaped flowers and is endemic to Alice Springs area. It prefers a well-drained soil and will tolerate dry periods but will perform better if watered regularly. To flower well it should be planted in full-sun. It is quite hardy in garden situations.

A well proportioned, rounded shrub to 0.6 m high by 0.3 m wide. It has very appealing large lilac-purple flowers that appear after rain in the wild. In gardens it is likely to be more freeflowering if water is available throughout the year. To keep plants neat and compact, prune lightly after flowering. It is frost tolerant and survives dry periods well.

Very hardy and fast-growing grey leaved succulents that may reach a height of about 1 m but will spread to a diameter of 2 m or more. Plants readily self-seed in Alice Springs' gardens. Their yellow or red berries are edible. They are frost and drought tolerant.