Weigela
Beginning of floweringWeigela florida
Caprifoliaceae · broadleaf deciduous shrub · introduced
Last updated
Weigela is a deciduous broadleaf shrub from Japan reaching 9-12 ft with erect form and medium growth. It produces funnel-shaped flowers in lavender, pink, red, or white from April to June, blooming on previous season's wood.
Weigela is hardy in zones 4a-8b and thrives in full sun to part shade with moist, adaptable soil (pH 4.5-8.5). Prune immediately after flowering through early summer. It attracts hummingbirds and tolerates clay soil with low-maintenance requirements.
Quick Facts
Phenological Calendar
As of May 15, 2026, Puget Sound stations range from 1942.5 to 2137.2 GDD₃₂. Weigela has passed beginning of flowering (1422 GDD₃₂).
Regional Season Tracker
GDD₃₂ accumulation across 7 Puget Sound stations · as of May 15, 2026| Station | GDD₃₂ | Current Stage | Next | To Go |
|---|---|---|---|---|
| Issaquah / East King | 2,137 | Beginning of flowering | — | — |
| Kent / Auburn | 2,130 | Beginning of flowering | — | — |
| Seattle / UW | 2,102 | Beginning of flowering | — | — |
| Olympia / Tumwater | 2,064 | Beginning of flowering | — | — |
| Tacoma / Puyallup | 2,033 | Beginning of flowering | — | — |
| Bellingham / Whatcom | 2,012 | Beginning of flowering | — | — |
| Sequim / Rain Shadow | 1,943 | Beginning of flowering | — | — |
| Stage | GDD32 | Typical Window |
|---|---|---|
| ● Beginning of flowering BBCH 61 NOW | 1422 | — |
Source: OSU phenology catalog (OSU: weather.cfaes.osu.edu) About GDD₃₂ →
Season tracker for Kent / Auburn as of May 15, 2026. Predicted dates use 16-day weather forecast through May 31, 2026, then climate normals.