Aruncus dioicus Goat's Beard Description This plant can be found growing deep in the nursery woods. The leaves are dark green and the tall plumes are creamy white in early to mid summer. It looks like a giant astilbe! Prefers moist soil. Characteristics Hardiness Zone: 3-7 Light requirements: Part Sun Height: 5-6' Native: Yes Sizes & Prices Size: 1 GALLON $14.98 Other Information All Aruncus Aruncus aethusifolius Dwarf Goat's Beard Zone: 3-7 Part Sun/Shade HT: 8" Aruncus dioicus Goat's Beard Zone: 3-7 Part Sun HT: 5-6'