History: Amur Cork is native to Eastern Asia where it has long served a variety of uses. It is one of the fifty essential herbs in traditional Chinese medicine and is used to treat a variety of ailments. Dye extracted from the bright yellow inner bark has insecticidal properties and was used on important documents including the Diamond Sutra, one of the most important Buddhist sutras. It was introduced to the US in 1856 and by the 1900s was being planted widely as an ornamental tree. In some States it is considered an invasive species.
Why We Grow It: These hardy trees have quite the storied history and make appealing ornamental trees. The banana yellow inner back is a fascinating sight to behold.
Canadian Hardiness Zone: 3
Soil Preference: Adaptable to a variety of soils
Growth Habits and Disease Resistance: Tree reaches 10-15m tall, spreading growth habit with a rounded canopy. Quite tolerant of urban conditions and generally has few pests.
Sun/Shade: Full sun (approx. 8-10 hours of sun daily)
Pollination:Dioecious, a male and a female plant are required for pollination