Spiraea douglasii
Rose Spirea, Hardback, Western Spirea, Steeplebush
Family: Rosaceae Rose
| Type | Shrub |
| USDA Hardiness range | 5A - 8B |
| Exposure | Partial shade to full sun |
| Bloom color | Pink, purple |
| Bloom time | Summer |
| Water needs | Moist to wet |
| Landscape uses | Border, hedge, woodland garden |
| Height | 5' to 8' / 1.60m to 2.40m |
| Spread | 36" to 5' / 90cm to 1.60m |
| Growth rate | Fast |
| Persistence | Deciduous |
| Leaf color | Green |
| Fruit color | n/a |
| Soil pH requirements | Acidic, neutral |
| Soil type | Sandy, clay, loamy |
| Form | Upright or erect |
| Attributes and features | Native to North America, naturalizing |