trefle.io · Taken May 15, 2017 by Dieter Albrecht (cc-by-sa)
Simaroubaceae
Varnishtree
Ailanthus altissima
Also known as Japanese varnish tree, Toxicodendron altissimum, China tree, Pride of India
Native Plants · Trees & Shrubs · Invasive Tree · Fast Growing · Deciduous · Urban Tree · Allelopathic · Tree Of Heaven · Pollution Tolerant · Weed Tree · Hardy · Ornamental Tree
Varnishtree (Tree of Heaven) is an extremely vigorous, fast-growing deciduous tree that tolerates poor soils, pollution, and neglect — but is classified as an invasive species across much of North America and Europe and should be planted with great caution or avoided. Its roots and suckers spread aggressively, and the plant produces allelopathic chemicals that suppress surrounding vegetation. Regular removal of root suckers is essential, and in many regions planting it is discouraged or regulate
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water young trees deeply to encourage deep root establishment; mature trees are self-sufficient in most climates · Rarely needed once established; every 2-3 weeks during prolonged drought
- Maintenance
- High
- Soil
- loam
- Temperature
- -30°F to 100°F
- Cycle
- Perennial
Hardiness
USDA 3a-9b
Form & growth
Mature size and habit
- Mature height
- 30 ft – 75 ft
- Spread
- 40 ft
- Spacing
- 240 in apart
- Growth rate
- Moderate
- Root depth
- Deep
- Flowers
- No
- Foliage
- Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- Afghanistan, Alabama, Albania, Algeria, Argentina Northeast, Argentina Northwest, Arizona, Arkansas, Assam, Austria, Azores, Belgium, Bulgaria, California, Canary Is., Cape Provinces, Chile Central, China North-Central, China South-Central, China Southeast
- Attracts
- Bees, Moths, Birds
Sources: trefle, usda
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