Tree of Heaven

Ailanthus altissima

  • 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.

Characteristics & Attributes


SOIL MOISTURE:
Average to Dry Soils
ATTRIBUTES:
Seed
Deciduous
Fruit
FLOWERING TIME:
Spring
FOLIAGE COLOR:
Green

THESE PLANTS ARE

suitable substitutions for Ailanthus altissima