Details of...
Scientific Name: Ailanthus altissima
Pronunciation: ay-LAN-thus al-TISS-ih-muh
Common Name: tree of heaven
Family Name: Simaroubaceae
Plant Type: Invasive plant, Tree - deciduous
Key ID Features: Leaves compound, pinnate, to 50 cm long; leaflets ovate and have 2 small asymmetrical lobes at the base. Winter ID: leaf scar is larger than bud, bud is small and round.
Course(s): HORT 2355

Habit: Arching, Spreading, Upright
Form: Oval - vertical
Texture: Coarse
Mature Size:
Height:22 - 30m
Spread:10 - 15m
Growth Rate:Fast
Hardiness Rating: Zone 4: (-34 to -29 C)
Exposure: Filtered shade, Full sun, Part sun/part shade
Soil/ Growing Medium: Acidic, Rocky or gravelly or dry, Well-drained
Water Use: Low
Landscape Uses: Shade tree, Specimen plant, Street (boulevard tree), Tall background
Additional Info: Google
tree of heaven
Leaf Morphology: Glossary
Form: Compound
Arrangement: Alternate
Texture/ Venation:
Surfaces: Glandular hairs
Compound Leaf: Odd-pinnate
Colour in Fall: Green-yellow
Leaf(let) Terms:
Shapes: Elliptic, Lanceolate, Oblong
Bases: Truncate
Margins: Ciliate, Dentate

Inflorescence Type: Floriferous, Panicle
Flower Morphology:Dioecious plant
Number of Petals:5
Corolla Shape:Rotate/stellate
Ovary Position:Superior
Colour (petals): Not showy, White, Green
Flower Scent: Unpleasant
Flower Time at Peak: Jun

Fruit Type: Samara
Fruit Colour: Red
Fruiting Time: Sep, Oct
Additional Info: Showy

Bark Morphology: Showy, Smooth, Prominent lenticels, Lightly fissured
Bark or Stem Colour: Grey
Leaf Bud Type: Scaled in two ranks
Leaf Scar Shape:Half-round
Organ Modifications: Storage tap root

Propagation: Seed, Division - below ground parts
Plant Care:
Pest Susceptibility: Galls, Rust, Wilt, ( Drought resistant )
(GAZ) GAZebo
(GAZS) GAZebo South : q.1
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