Prairie Spire® Green Ash - Fraxinus pennsylvanica ‘Rugby’ (RFM-14)

Description:

Male seedless green ash cultivar with an above average growth rate of 1.84 feet annually over a ten-year period. Foliage is glossy and bright green. Characterized by a striking, narrowly erect, excurrent growth habit with terminal dominance and dense lateral branches, becoming narrowly pyramidal-elliptical with age. Hardy in USDA Zone 2b. It will reach a semi-mature height of 35 to 40 feet in 25 to 30 years. This tailored, dense excurrent green ash is a preferred cultivar in the commercial nursery trade of the north-central U.S. and prairie provinces in Canada.

Hardiness:

USDA Zones 2-7

Mature Size:

Height 40'-50', Spread 25'

Form (Shape):

Narrowly pyramidal to oval with age

Growth Rate:

Moderate

Foliage:

Decidous; glossy, bright green leaves that turn gold in fall

Light Preferences:

Full sun

Soil Preferences:

Tolerates dry and moist locations but prefers well-drained soil, not particular to soil type or pH

Other Attributes:

Seedless, long life span; Not resistant to EAB (Emerald Ash Borer)

Patent Status:

U.S. Trademark registered – Prairie Spire®
Canadian Trademark registered

Licensing Status:

This cultivar is available for non-exclusive licensing.

Inquire about this technology >