White Flowered Redbud
Cercis canadensis var. alba
Fabaceae · broadleaf deciduous tree · introduced
Last updated
Plant Profile
Size & Form
Height
12 ft
Spread
25-35 ft
Growth Rate
Fast
Size at 20 yr
12 ft
Lifespan
Short-lived
Site Requirements
Light
Part Shade
Soil Drainage
Moist
Soil pH
6.0-8.0
Water
Low
Drought Tolerance
High
Hardiness
Zones 6b–9b
Ornamental Interest
Bloom Time
April
Fall Color
Yellow
Watch for this season
Root Colonization Period
Diseases: Regionally Documented (2)
Phenological Calendar
As of June 3, 2026, Puget Sound stations range from 2435.5 to 2672.8 GDD₃₂. White Flowered Redbud has passed 'fall color / leaf senescence' (1750 GDD₃₂).
Regional Season Tracker
GDD₃₂ accumulation across 7 Puget Sound stations · as of Jun 3, 2026| Station | GDD₃₂ | Current Stage | Next | To Go |
|---|---|---|---|---|
| Issaquah / East King | 2,673 | 'Fall color / leaf senescence' | — | — |
| Kent / Auburn | 2,665 | 'Fall color / leaf senescence' | — | — |
| Seattle / UW | 2,610 | 'Fall color / leaf senescence' | — | — |
| Olympia / Tumwater | 2,570 | 'Fall color / leaf senescence' | — | — |
| Tacoma / Puyallup | 2,535 | 'Fall color / leaf senescence' | — | — |
| Bellingham / Whatcom | 2,533 | 'Fall color / leaf senescence' | — | — |
| Sequim / Rain Shadow | 2,436 | 'Fall color / leaf senescence' | — | — |
View full calendar (5 stages)
| Stage | GDD32 | Typical Window |
|---|---|---|
| 'Flower buds visible' BBCH '51' | 835 | '' |
| 'First bloom' BBCH '61' | 1249 | '' |
| 'Bud break' BBCH '07' | 1313 | '' |
| 'Leaf emergence' BBCH '11' | 1554 | '' |
| ● 'Fall color / leaf senescence' BBCH '93' NOW | 1750 | '' |
Source: 'NPN citizen science observations (WA+OR), n=12, median. services.usanpn.org' About GDD₃₂ →
Season tracker for Kent / Auburn as of Jun 3, 2026. Predicted dates use 16-day weather forecast through Jun 19, 2026, then climate normals.
Data Maturity Baseline Extension data. Expert review underway.