Goat's Beard Aruncus dioicus Light: Partial, Shade Soil: Sand, Loam, Clay Moisture: Medium, Moist, Wet Benefits: Butterflies Height: 3'-6' Blooms: May, Jun Zones: 3, 4, 5, 6, 7, 8 Color: White Root: Rhlzome Large feathery plumes of flowers rise from pinnately compound leaves. Goat’s Beard is an excellent choice for a background plant in a border or woodland garden. Spreads slowly by rhizomes to form attractive patches. Can be planted in sunny areas provided there is good moisture.