Blue False Indigo
Baptisia australis
Fabaceae · perennial · introduced
Last updated
Data Coverage 3 of 6 dimensions
As of March 31, 2026, Kent / Auburn has accumulated 1062.5 GDD₃₂. Blue False Indigo typically reaches 'first bloom' at 1638 GDD₃₂, predicted around Apr 28.
Quick Facts
Height
5 ft
Growth Rate
Slow
Light
Full Sun
Soil
Moist
Water
Moderate
Hardiness
Zone Zones 3a–9b
Bloom Time
May to June
Phenological Calendar
Regional Season Tracker
GDD₃₂ accumulation across 7 Puget Sound stations · as of Mar 31, 2026| Station | GDD₃₂ | Current Stage | Next | To Go |
|---|---|---|---|---|
| Issaquah / East King | 1,132 | Pre-season | 'First bloom' | 506 |
| Seattle / UW | 1,126 | Pre-season | 'First bloom' | 512 |
| Kent / Auburn | 1,063 | Pre-season | 'First bloom' | 576 |
| Olympia / Tumwater | 1,062 | Pre-season | 'First bloom' | 576 |
| Bellingham / Whatcom | 1,053 | Pre-season | 'First bloom' | 585 |
| Tacoma / Puyallup | 1,030 | Pre-season | 'First bloom' | 608 |
| Sequim / Rain Shadow | 1,023 | Pre-season | 'First bloom' | 615 |
| Stage | GDD32 | Typical Window |
|---|---|---|
| ○ 'First bloom' BBCH '61' NEXT | 1638 | '' est. Apr 28 (avg) |
Range: 1018–1280 GDD₃₂
(6yr)
GDD = Growing Degree Days (base 32°F, Jan 1 start). Why base 32? Source GDD₅₀ thresholds from Herms 2004 (OSU, Secrest Arboretum, Ohio) and UMD IPMnet (Gill & Klick, mid-Atlantic), converted to GDD₃₂ via Kent bloom-date mapping. Season tracker for Kent / Auburn as of Mar 31, 2026. Predicted dates use 16-day weather forecast through Apr 16, 2026, then climate normals.