Fraxinus americana 'Rosehill'
Rosehill White Ash

Fraxinus americana ′Rosehill′ - Winter Habit

Family:

Oleaceae (Olive Family) 45

Genus:

Fraxinus (Ash) 15

Plant Type:

Tree 580

Hardiness:

USDA Zone 4 498

Deciduous / Evergreen:

Deciduous 809

Flowers:

Green (Spring; not ornamentally important)

Foliage:

Green (Deep green summer foliage); Bronze (Inconsistent bronze red to poor yellow fall foliage)

Ultimate Height:

35-50 feet

Ultimate Spread:

25-30 feet

Light Requirements:

Soil:

Widely adapted to soils, including alkaline

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:

Bark 161

Drought Tolerant 278

Pollution Tolerant 217

Tolerant of Poor Site Conditions 190

Shade Tree 173

Street Tree 130

Additional Information

'Rosehill' is a seedless cultivar that is very tolerant of poor soil conditions, including alkaline. 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.