Sophora japonica (Japanese pagoda tree): Ecology

Habitat: This species is hardy to zone 4 and tolerant of many soil types although it prefers loamy, well-drained soils. When young, this tree may be susceptible to cold but can withstand heat and drought once established. A medium to fast grower, it reaches a height of 10 to 12 feet in 5 to 6 years, but does not flower while young.

Diseases: Relatively free of pest problems, this species may occasionally contract twig blight, powdery mildew and canker.

Distribution:Native to China and Korea, and widely planted in Japan, the Japanese pagoda tree was introduced to the US in 1747.