Typically grown for their attractive foliage, the Schefflera genus consists of trees, shrubs and climbing species that have palmately divided foliage. Several species are commonly cultivated as houseplants. Schefflera actinophylla (Umbrella Tree) and Schefflera arboricola (Dwarf Umbrella Tree) are most common. This genus can also be grown outdoors in areas with no frost, or where protected against frost, in sheltered positions. Many cultivars with attractive foliage variations - including variegation and purple colouring - have been developed. Contact with foliage may cause skin irritation.