Fraxinus pennsylvanica 'Summit'
Summit Green Ash

Family:

Oleaceae (Olive Family) 45

Genus:

Fraxinus (Ash) 15

Plant Type:

Tree 580

Hardiness:

USDA Zone 3 225

Deciduous / Evergreen:

Deciduous 807

Flowers:

Green (Spring; not ornamentally important)

Foliage:

Green (Glossy, medium green summer foliage); Yellow (Handsome golden yellow fall foliage)

Ultimate Height:

45 feet

Ultimate Spread:

25 feet

Light Requirements:

Soil:

Widely adapted to soils

Diagnostic Characteristics:

Leaves are opposite, pinnately compound, 12" long with 5-9 leaflets (usually 7). Leaflet apex often with remote serrations. Petioles not grooved and are flat across top of leaf scar (vasculature still U-shaped). Bark deeply furrowed into diamond pattern.

Special Characteristics:

Fall Color 214

Fast Growth Rate 228

Pollution Tolerant 217

Tolerant of Poor Site Conditions 190

Shade Tree 172

Street Tree 130

Additional Information

'Summit' is a vigorous, seedless male cultivar with a strong central leader. It has excellent golden fall color, but tends to drop its leaves early in the fall. An unattractive ash flower gall (formed by mites) can develop on male flowers and persists into winter. Emerald Ash Borer is severely affecting all species of this genus. Damage can be prevented with the appropriate pesticide, but the treatment cost will eventually exceed replacement cost.