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Find out why tree of heaven is so invasive, how to identify it, distinguish it from its lookalike sumac, and remove it permanently and effectively.
Ailanthus altissima (/ eɪ ˈ l æ n θ ə s æ l ˈ t ɪ s ɪ m ə / ay-LAN-thəss al-TIH-sim-ə), [3] commonly known as tree of heaven, ghetto palm, Ailanthus, varnish tree, copal tree, stinking sumac, Chinese sumac, paradise tree, [4] or in Chinese as chouchun (Chinese: 臭椿; pinyin: chòuchūn), is a deciduous tree in the family ...
Tree-of-heaven (Ailanthus altissima) is an invasive tree and noxious weed in PA. This article displays images to assist with identification and provides recommendations for control, including a management calendar and treatment and timing table.
The tree of heaven is a problem because it reproduces very quickly and aggressively inhibits (and can even kill) native plants near it. This invasive plant produces an overly abundant amount of seeds, crowds out native species with its dense thickets and secretes a chemical into the soil that is toxic to surrounding plants.
Tree-of-heaven is a fast growing, deciduous, exotic invasive tree that is able to germinate and grow in a wide variety of soil and site conditions proving that it has been and still is troublesome from urban landscapes to woodlands.
Tree-of-heaven is not shade tolerant. It is particularly invasive in urban landscapes, right of ways, roadsides, and woodland edges. It establishes quickly, colonizing primarily disturbed and neglected areas.
Is this Weed Toxic?: Certain sensitive individuals have found contact with plant parts to cause skin irritation and rashes. Why Is It a Noxious Weed? Tree-of-heaven is naturalized throughout Washington. It is a fast growing tree, forming thickets that outcompete native plants.