Spiraea douglasii, Douglas or Western Spirea

Dancing Oaks Nursery and Gardens Verified independent store

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From early summer to late summer, elongated tufts of pink flowers reach out of roadsides and stream banks. Can overtake moist areas; spreads less vigorously in drier conditions. Na tive to Western North America. Mature size: 4 - 6 feet tall & colony forming (remove side-suckers to control size) Minimum temperature: -20° F Closeup photo by Epibase, CC BY 3.0, via Wikimedia Commons Colony photo by Ron Clausen, CC BY-SA 4.0, via Wikimedia Commons Show more