Varnishtree

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