Prunus virginiana
'Full bloom'Prunus virginiana
Rosaceae · broadleaf deciduous shrub · native
Last updated
Prunus virginiana (Rosaceae) is a deciduous shrub or small tree native across much of North America from Newfoundland to British Columbia and south to Kansas and North Carolina. It grows 20 to 40 feet tall, forming thickets via root suckers. Dense, cylindrical racemes of small white flowers appear in late spring, followed by small, dark red to black fruit.
Chokecherry grows in full sun to part shade on a wide range of soils. The fruit is extremely astringent when raw but is traditional for jellies, syrups, and wine. It is an important wildlife food plant. The cultivar 'Canada Red' (Schubert) has purple foliage. Black knot disease and tent caterpillars are common problems. All parts except ripe fruit flesh contain cyanogenic glycosides. Hardy in Zones 3a to 8b.
Plant Profile
Size & Form
Site Requirements
Ornamental Interest
Primary Infection - Flowers and Young Leaves
Peak Spore Production and Dispersal
Active Conidial Spread
Uredinial Stage (Summer)
+ 17 more — see full disease and pest lists below
Diseases: Regionally Documented (51)
Pests: Regionally Documented (31)
Phenological Calendar
As of June 3, 2026, Puget Sound stations range from 2435.5 to 2672.8 GDD₃₂. Prunus virginiana has passed 'full bloom' (933 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 | 'Full bloom' | — | — |
| Kent / Auburn | 2,665 | 'Full bloom' | — | — |
| Seattle / UW | 2,610 | 'Full bloom' | — | — |
| Olympia / Tumwater | 2,570 | 'Full bloom' | — | — |
| Tacoma / Puyallup | 2,535 | 'Full bloom' | — | — |
| Bellingham / Whatcom | 2,533 | 'Full bloom' | — | — |
| Sequim / Rain Shadow | 2,436 | 'Full bloom' | — | — |
View full calendar (2 stages)
| Stage | GDD32 | Typical Window |
|---|---|---|
| 'First bloom' BBCH '61' | 838 | '' |
| ● 'Full bloom' BBCH '65' NOW | 933 | '' |
Source: 'Master catalog (OSU), converted GDD50->GDD32 via Kent bloom-date mapping' 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.