Compact, rounded heads atop sturdy branches give a bonsai type appeal to the ripple jade plant (Crassula arborescens ssp. undulatifolia). It can grow into a rounded shrub, with mature plants capable of reaching 3 to 4 feet (.91 to 1.2 m.) in height, according to ripple jade plant info. Bluish leaves are twisted and erect, sometimes with purple edging when this plant is growing in the right place. Growing ripple jade, also called curly jade, is a joy when it’s located in a happy spot.