Pagoda Dogwood
'Full bloom'Cornus alternifolia
Cornaceae · broadleaf deciduous tree · native
Last updated
Quick Facts
Height
15–25 ft
Spread
20-32 ft
Growth Rate
Moderate
Light
Part Shade
Soil
Well Drained
Water
Moderate
Hardiness
Zone Zones 3a–8b
Bloom Time
May to June
Fall Color
Red
Origin
from New Brunswick east to Minnesota and south to Georgia
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
As of May 13, 2026, Puget Sound stations range from 1906.2 to 2098.2 GDD₃₂. Pagoda Dogwood has passed 'full bloom' (1490 GDD₃₂).
Regional Season Tracker
GDD₃₂ accumulation across 7 Puget Sound stations · as of May 13, 2026| Station | GDD₃₂ | Current Stage | Next | To Go |
|---|---|---|---|---|
| Issaquah / East King | 2,098 | 'Full bloom' | — | — |
| Kent / Auburn | 2,089 | 'Full bloom' | — | — |
| Seattle / UW | 2,063 | 'Full bloom' | — | — |
| Olympia / Tumwater | 2,025 | 'Full bloom' | — | — |
| Tacoma / Puyallup | 1,993 | 'Full bloom' | — | — |
| Bellingham / Whatcom | 1,972 | 'Full bloom' | — | — |
| Sequim / Rain Shadow | 1,906 | 'Full bloom' | — | — |
| Stage | GDD32 | Typical Window |
|---|---|---|
| 'First bloom' BBCH '61' | 1270 | '' |
| ● 'Full bloom' BBCH '65' NOW | 1490 | '' |
Range: 937–1136 GDD₃₂
(6yr)
Source: 'Master catalog (OSU), converted GDD50->GDD32 via Kent bloom-date mapping' About GDD₃₂ →
Season tracker for Kent / Auburn as of May 13, 2026. Predicted dates use 16-day weather forecast through May 29, 2026, then climate normals.
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.