Cornus sericea
Cornus sericea
Cornaceae · broadleaf · introduced
Red-osier dogwood is the native shrub with the vivid red winter stems that you see lining creek banks, wetland edges, and rain gardens across the Puget Sound lowlands. It spreads by underground stolons into dense thickets, growing six to nine feet tall, and when the leaves drop in November the red stems light up against the winter landscape. The species ranges across most of North America and is one of the most widely distributed native shrubs on the continent. The white flower clusters in late spring are modest, and the white berries in fall feed birds.
Red-osier dogwood is the go-to native shrub for wet sites in Western Washington. It tolerates seasonal flooding, clay soils, and the low, poorly drained spots where most ornamental shrubs fail. It is the backbone plant for bioswales, rain gardens, stream bank stabilization, and wetland buffer plantings. The suckering habit means it colonizes an area over time, which is either the design intent or a management issue depending on context. Hard pruning in late winter encourages the brightest stem color on new growth. No significant disease or pest concerns are flagged in the regional knowledge base. If you have a wet site and need a native shrub that provides year-round ecological value with zero chemical inputs, red-osier dogwood is the default answer.
Quick Facts
Phenological Calendar
| Stage | Typical Window |
|---|---|
| Bud break BBCH 07 | Feb 15-Mar 15 |
| Leaf emergence BBCH 11 | Mar 1-Apr 1 |
| Bloom start BBCH 61 | Mar 15-May 15 |
| Bloom end / petal fall BBCH 69 | Apr 15-May 31 |
| Fruit/seed development BBCH 71 | Jun 1-Aug 31 |
| Fall color / leaf senescence BBCH 93 | Oct 1-Nov 15 |
| Dormancy BBCH 97 | Nov 15-Feb 28 |