Western Dogwood
Cornus sericea subsp. occidentalis
Ericaceae · broadleaf deciduous shrub · introduced
Last updated
Quick Facts
Height
5 ft
Growth Rate
Moderate
Light
Full Sun
Soil
Wet Tolerant
Water
Moderate
Hardiness
Zone Zones 3b–9b
Bloom Time
May to June
Watch for this season
Primary Spore Release
Oystershell scaleHigh
Crawler Emergence
Armillaria Root RotModerate
Active Below-ground Growth
Powdery MildewModerate
Spring Emergence / Primary Infection
+ 2 more — see full disease and pest lists below
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 |
Diseases: Regionally Documented (7)
Discula destructiva (dogwood), Kabatiella and Discula spp... Anthracnose Multiple obligate biotrophic fungi (Erysiphales: Erysipha... Powdery Mildew Collar Rot Armillaria spp. — primarily A Armillaria Root Rot Symptom category — not a single disease Branch Canker Symptom category — not a single disease Leaf Spot Symptom category — not a single disease Root Rot
Pests: Regionally Documented (6)
Data Maturity Structured Multiple sources. Expert review underway.