
Native Plants A-Z
Cornus sericea (kór-nus ser-í-see-a) is a striking, deciduous shrub best known for its bright red stems in winter, which bring color and structure to riparian corridors and habitat gardens alike. In the Santa Cruz Mountains, it thrives along creeks, seeps, pond margins, and moist woodland edges, where its spreading thickets stabilize soil and create rich wildlife cover. A lovely demonstration of this thicket can be found at the new Felton Library along Bull Creek.
Its flat-topped clusters of creamy white flowers appear in late spring to early summer, attracting native bees, syrphid flies, and butterflies. By late summer, these flowers give way to white to bluish berries that feed a wide array of birds, including Cedar Waxwings, Swainson’s Thrushes, and American Robins. The dense branches provide shelter and nesting habitat for songbirds, while its foliage supports numerous insects that become food for insectivorous birds, amphibians, and reptiles.
Ecologically, Redtwig Dogwood or Red-osier Dogwood is a cornerstone riparian plant: it stabilizes streambanks with its dense, spreading root system, improves water quality by filtering runoff, and provides shade that cools stream habitats for fish and amphibians. In habitat gardens, it offers four seasons of interest — spring blossoms, summer berries, autumn leaf color, and vivid red stems in winter — while anchoring the garden as a wildlife hub and visual centerpiece.
Redtwig Dogwood
Red Osier Dogwood
Cornus sericea
kór-nus ser-í-see-a
KEY DETAILS
Plant Type
Deciduous, multi-stemmed shrub (thicket-forming)
Light
- Full sun to part shade
Soil
- Thrives in moist, well-drained soils, moist woodland margins
- Tolerates clay-loam and loamy soils; benefits from supplemental moisture in drier garden zones
Size
- Typically 6–12 ft tall and wide; spreads via basal suckers, forming dense thickets
Bloom Time
- May–July; flat clusters of creamy-white flowers
Sun Exposures per day
Shade: Less than 3 hours of direct sun
Part shade: 3-4 hours of direct sun
Part Sun: 5–6 hours of direct sun
Full Sun: Receives 6+ hours of direct sun