The neem tree has caught the attention of gardeners in recent years for the benefits of its oil, a safe and effective herbicide. However, that's just the beginning of the story. This versatile plant, native to tropical India and Asia, is a valuable tree with many uses. Neem is a hardy tree that can tolerate temperatures up to 50 C. Neem tree is a tall evergreen tree with small bright green leaves. The colour of the bark is brown grayish. The leaves are alternate and consist of several leaflets with serrated edges.