Scientific Name: Fraxinus angustifolia
Common Name: narrow-leaved ash, Caucasian ash
Family Name: Oleaceae
Origin: Africa, Europe
Hardiness Zone: Zone 4: (-34 to -29 °C)
Plant Type: Tree - deciduous
Mature Size: 10 - 15m x 10 - 15m (height x width)
Habit: Spreading, Upright
Form: Oval - vertical
Texture: Medium - fine
Landscape Uses: Fall interest, Shade tree, Specimen plant, Street (boulevard tree), Tall background
Exposure: Full sun
Soil or Media: Rocky or gravelly or dry, Well-drained
Leaves: Compound, Opposite, Soft flexible, Pinnate venation, Lustrous, Odd-pinnate, Leaflets stalked, Lanceolate, Serrate
Flowers: Flowers clustered, Green-yellow, Dark-red, Apr-May
Fruit: Samara, Green, Brown, Jul-Aug, (Persistent)
Key ID Features:
Tree oval crown; leaves opposite (may appear whorled at tips), pinnately compound, 15-25cm long; leaflets (5-)7-11(-13) per leaf, lanceolate, 4-7cm long x 1-1.5cm wide, glossy, olive-green, margins serrate; flowers purple, April-May; samara 3-4cm long with seed about half this length (absent on some clones). Winter ID: buds brown to dark purplish, ovoid, rounded, about 5mm long; leaf scar crescent to D-shaped.