- Medium sized mound of thick substanced foliage that is light to medium green in the center with a margin that changes from yellow to creamy white. Medium purple flowers from mid July into August. Matures 14 inches high by 36 inches wide. One of the most expensive Tiara family hostas, and for good reason. One of the nicest in the tiara family and more difficult to find for sale and less supply available. Zones 3-9.