* Prostrate: Plants less than 150mm high at maturity
Groundcover: Plants up to 300mm high , spreading to 2 metres at maturity
Small: Shrubs from about 0.5 to 1.0 metres hign with a similar spread at maturity
Medium: Shrubs from 1.0 to 3.0 metres high with a similar spread at maturity
Large: Large shrubs or small trees, 3.0 metres high or taller