Asystasia Gangetica is a fast-growing perennial plant which is included on lists of invasive plants in many areas, including for Cuba, Puerto Rico and Hawaii It is a fast-growing, spreading groundcover that grows to 0.6 m in height or, if supported, up to 1 m or more It has simple, dark green leaves, stems that root easily at the nodes In spring and summer, this plant produces cream-colored flowers with tessellated purple markings on the lower petal of the corolla, which are followed by an explosive green capsule 'Variegata' has cream and green blotched foliage When planting asystasia, bear in mind it can spread rapidly, and may not stay confined to the desired area It can be planted in most free-draining acid to neutral soils, and thrives in either full sun or partial shade