Western Dogwood
Cornus torreyi
Ericaceae · broadleaf deciduous shrub · native
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Western dogwood (Cornus torreyi, Cornaceae; synonym C. occidentalis, C. sericea subsp. occidentalis) is a native deciduous shrub ranging from Alaska to California, east to Montana and Idaho. It reaches 3 to 20 feet tall with a spreading, loosely branched form. Small white flowers appear in flat-topped terminal clusters, followed by white or ivory globose fruit. Fall color is red, and stems develop red-purple coloration in sun (remaining green in shade).
Western dogwood is hardy in Zones 5a to 8b. It spreads rapidly via underground stolons or rooting branches. Disease and pest associations mirror the Cornus genus broadly. No cultivars are documented.
Quick Facts
Light
Full Sun to Part Shade
Hardiness
Zone Zones 5a–8b
Fall Color
Red
Origin
Pacific Northwest native
Diseases (9)
Colletotrichum acutatum complex (C Anthracnose Podosphaera aphanis var. aphanis Powdery Mildew Sphaerulina azaleae (formerly Septoria azaleae) Leaf Scorch And Leaf Roll Phytophthora cactorum Collar Rot Armillaria ostoyae Armillaria Root Rot Various fungi (Phoma spp., Phomopsis spp., Cytospora spp.... Branch Canker abiotic (drought, heat stress) or bacterial (Xylella fast... Leaf Scorch Symptom category — not a single disease Leaf Spot Symptom category — not a single disease Root Rot