| Shape | Young trees are pyramidal and gradually matures to a more rounded but usually irregular crown. |
| Landscape | Planting new green ash trees is no longer recommended given the susceptibility to the emerald ash borer. Ash trees have traditionally been used as shade tree, street tree or lawn tree. |
| Cultivation | Best grown in average, medium wet, well-drained soils in full sun. Prefers moist sites. |
| Pests | Generally susceptible to insect problems such as emerald ash borer, lilac borer, carpenter worm, oyster shell scale, leaf miners, fall webworms, ash sawflies and ash leaf curl aphid. Potential diseases include ash dieback (Charlara fraxinea), fungal leaf spots, powdery mildew, rust, anthracnose, cankers and ash yellows. |
| Habitat | Horticultural origin. |
| Bark/Stem Description | Dense branching. Bark is smooth but becomes thick and fissured with age. |
| Leaf Description | Opposite, compound leaves with short-stalked leaflets. |
| Colour Description | Grey-brown bark. Foliage turns yellow in autumn. |
| Texture Description | Medium |