Kratom is a large tree that grows naturally in Thailand and Malaysia. It is 12 to 30 feet tall and produces large, dark green, oval-shaped leaves. Trees thrive in wet, humid areas, and need fertile soil, lots of sun, and protection from strong winds. Shed and regrowth leaves throughout the year, although they are more abundant during the region's wet season. The tree provides clusters of bright yellow flowers, each consisting of hundreds of buds.

Kratom has been used for medicinal…