Scientific Name: Fraxinus americana
Common Name: American ash, white ash
Family Name: Oleaceae
Origin: Garden origin, U.S. - northeast
Hardiness Zone: Zone 4: (-34 to -29 °C)
Plant Type: Tree - deciduous
Mature Size: 10 - 15m x 7 - 10m (height x width)
Habit: Dense, Upright
Form: Oval - vertical, Round
Texture: Medium
Landscape Uses: Attract birds, Fall interest, Shade tree, Specimen plant, Street (boulevard tree), Tall background
Exposure: Full sun
Soil or Media: Well-drained
Leaves: Compound, Opposite, Soft flexible, Pinnate venation, Glabrous, Odd-pinnate, Leaflets stalked, Lanceolate, Ovate, Crenate, Entire, Serrate, Undulate (wavy)
Flowers: Flowers clustered, Green-yellow, Dark-red, Apr-May
Fruit: Samara, Green, Brown, Sep-Oct
Key ID Features:
Leaves opposite, pinnately compound, 19-35cm long, each with (5-)7(-9) leaflets, most ovate-lanceolate 5-9cm long x 3-5cm wide, margins entire (at least at base) to slightly serrate (at least midway to apex), wavy, scalloped, or with small teeth, most petiolules 3-5mm long (2-3 longer on the terminal leaflet); samaras 2.5-5cm long. Winter ID: buds rusty to dark chocolate brown with suede-like scalloped scales; leaf scar U-shaped with the lateral bud sitting deep in the notch; vascular bundle scars are very numerous in a U-shaped line.