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| Plant | Origin | Zone | Height | Type | D/M/W |
| Kentiopsis oliviformis | New Caledonia | 10B-11 | 30M | Shade | Moist |
| Kerriodoxia elegans | Thailand | 10 | 5M | ||
| Khaya anthotheca - African Mahogany | Africa | ||||
| Kigelia pinnata - Sausage Tree | West Africa | 10-11 | 15M | ||
| Koelreuteria elegans - Golden Rain Tree | Asia | 9-11 | 12-20M | ||
| Kopsia pruniformis - Java Prune | Java, New Guinea | 10-12 | 12M | ||
| Krugiodendron ferreum - Black Ironwood |
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