“Tree of Heaven is native to China.
It can grow to around 21 meters or 70 feet high. It is drought tolerant and highly tolerant of most industrial pollutants which makes it an ideal urban tree. It is a short-lived tree with a life span of around 30 to 70 years.
It is mentioned in the oldest Chinese dictionary and numerous Chinese medical texts. In traditional Chinese medicine, it is used to treat mental illness, baldness, dysentery, asthma, etc.
It is considered an invasive species in many countries for its ability to produce many seeds, reproduce through its roots and its chemical extracts that inhibit germination and growth of other plant species.”