Fraxinus americana 'Empire'
Empire White Ash

Fraxinus americana ′Empire′ - Summer Habit

Family:

Oleaceae (Olive Family) 45

Genus:

Fraxinus (Ash) 16

Plant Type:

Tree 564

Growth Forms:

Upright 563

Hardiness:

USDA Zone 4 512

Deciduous / Evergreen:

Deciduous 826

Flower Notes:

Green (Spring; dioecious; not ornamentally important)

Foliage Notes:

Green (Summer foliage); Multi-Colored (Excellent fall foliage can be yellow-orange, orange, red, or purple)

Fruit Notes:

Brown (Samaras; can cause significant litter)

Ultimate Height:

40-50 feet

Ultimate Spread:

20-25 feet

Light Requirements:

Soil Notes:

Widely adapted to soils

Maintenance:

Low 238

Diagnostic Characteristics:

Leaves are opposite, pinnately compound, 8-15" long with 5-9 leaflets (usually 7). Leaflet apex often with remote serrations. Slightly grooved petioles and U-shaped leaf scars. Bark deeply furrowed into diamond pattern.

Special Characteristics:

Drought Tolerant 287

Pollution Tolerant 217

Tolerant of Poor Site Conditions 186

Additional Information

'Empire' is a narrow, upright tree with handsome fall foliage. Fruits can be a litter problem. An unattractive ash flower gall (caused by mites) can develop on male flowers and persist into winter. Subject to storm damage, so plant in areas that shelter the tree from strong winds. 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.