Seeds Dodonaea viscosa ‘Purpurea’ or Purple-leafed Hop-bush. This fast growing, evergreen shrub reaches 12 to 16 feet tall and almost as wide, more upright when young spreading out with age. Narrow bronzy-green 4 inch long leaves turn purple with cooler weather. Tolerates some shade but color is better if grown in full sun. Hardy in zones 7-9 in well draining soil, drought tolerant once established.