Two Worlds Oak

Quercus bimundorum

Fagaceae · broadleaf deciduous tree · native

Last updated

Quercus x bimundorum (Fagaceae) is a hybrid between Q. alba (white oak) and Q. robur (English oak). The best-known selection is 'Crimson Spire', a columnar tree reaching 30 to 40 feet tall with a narrow, upright form. The foliage resembles white oak but with some English oak characteristics.

This hybrid combines the adaptability of English oak with the native vigor of white oak. 'Crimson Spire' is grown for its narrow columnar form, which suits street plantings and tight spaces. It grows in full sun on well-drained soil. Hardy in Zones 4a to 8b.

Quick Facts

Height
30–40 ft
Hardiness
Zone Zones 4a–8b
Origin
Eastern North America (i
Watch for this season

Primary Spore Release

Spring Canker Activation

Spring Spore Germination and Infection

Spore Release (Fall & Spring Rains)

+ 4 more — see full disease and pest lists below

Diseases: Regionally Documented (13)

Pests: Regionally Documented (14)

Cultivars (2)

'Crimson Spire'
Common name: Crimson Spire Oak; Mature height: 45 ft
Hardy to USDA Zone 5
'Crimschmidt'
Data Maturity
Structured Multiple sources. Expert review underway.