Eastern Redbud

'Full bloom'

Cercis canadensis

Fabaceae · broadleaf deciduous tree · native

Last updated

Eastern redbud (Cercis canadensis, Fabaceae) is a fast-growing deciduous tree native to eastern North America from New Jersey to Florida, west to Missouri and northern Mexico. It typically reaches 20 to 30 feet tall with a rounded, often multi-trunked form. Small rosy-pink pea-like flowers bloom profusely on bare branches in early spring before leaves emerge, making it a precocious bloomer. Dense, dark green, heart-shaped leaves turn golden yellow in fall. Flat pods (5 to 7.5 centimeters) may persist through winter.

Eastern redbud grows in part shade on moist, well-drained soils (pH 6.0 to 8.0) with low water needs and high drought tolerance, hardy in Zones 6b to 9b. It tolerates deer browse, clay soil, and black walnut proximity. The species does not transplant well and should be planted young. Documented diseases include vascular streak dieback and verticillium wilt. It is a larval host for 12 Lepidoptera species including Henry's Elfin butterfly. Cultivars include 'Forest Pansy' (purple foliage, 20 feet) and 'Ruby Falls' (weeping, 6 to 8 feet). A white-flowered form (var. alba) is also available.

Quick Facts

Height
20–30 ft
Spread
25-35 ft
Growth Rate
Fast
Light
Part Shade
Soil
Moist
Water
Low
Hardiness
Zone Zones 6b–9b
Bloom Time
April
Fall Color
Golden, yellow
Origin
from New Jersey to Florida, west to Missouri and northern
Watch for this season

Root Colonization Period

Phenological Calendar

As of May 13, 2026, Puget Sound stations range from 1906.2 to 2098.2 GDD₃₂. Eastern Redbud has passed 'full bloom' (973 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' 838 ''
'Full bloom' BBCH '65' NOW 973 ''
Range: 580–720 GDD₃₂ (6yr)

Source: 'Master catalog (OSU, UMD), 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 (2)

Cultivars (2)

'Forest Pansy'
Common name: Forest Pansy Redbud; Mature height: 20 ft
'Ruby Falls'
Common name: Ruby Falls Weeping Redbud; Mature height: 6–8 ft
Hardy to USDA Zone 5
Data Maturity
Structured Multiple sources. Expert review underway.