Dubium

This South African bulb, perennial in U.S. Department of Agriculture plant hardiness zones 7a through 10b, reaching just 12 to 15 inches high. Give it supplemental water only when rainfall isn't enough.keeps track of rainfall.

Lift it from its container and gently pull the small, new bulbs from the sides of the larger ones. Occasionally, sap-sucking aphids and whiteflies may coat the leaves with sticky, transparent waste.

Once stems and foliage turn yellow, cut and remove them with scissors or pruning shears. This plant is toxic when ingested.U.S. Department of Agriculture plant hardiness zones 7 to 10, preferring a sunny location with a little afternoon shade.

If freezing temperatures are rare in your climate, you can plan it any time in the winter. These include the narrow-leaved clover (Trifolium angustifolium), shamrock clover (Trifolium dubium), knotted clover (Trifolium striatum) and subterranean clover...