Ailanthus altissima

Non-native invasive
Upright, variable, spreading growth habit
Yellow-green flowers are hidden by the foliage
Compound pinnate leaves emerge bronze, turning dark green
Seeds (twisted samaras) are borne in clusters, persisting into the winter
Use only where nothing else will grow
Bloom Time: Spring

ZONE:
4

COLOUR:
Lime-green

HEIGHT:
18-20 m

SPREAD:
16-18 m

Currently Unavailable

Substitutions Are Available

Growing and Maintenance Tips:

Ailanthus will tolerate heavy urban pollution and adverse conditions, including dry, rocky soils with ranges of pH.

Additional Notes about Tree of Heaven:

Invasive in Ontario and much of the USA, having been introduced from Asia in 1748.

Ailanthus are dioecious: there are male or female plants, rarely male AND female. The leaves, stems and especially the male flowers have an offensive odour. They are also allelopathic: producing herbicides that limit the growth of other plants around them.