Catalpa Tree Branches Pods Leaves Stock Photo 2586961485 Shutterstock A Pruning Guide for the Catalpa: When, Why & How? MOOWY How Good Is Catalpa Firewood? Axe Adviser Southern Catalpa (Catalpa bignonioides): Essential Guide Indian Bean Tree Gardening In Pearls While catalpa trees are not generally considered highly toxic, some parts of the tree, particularly the roots, are known to be poisonous according to the USDA Plants Database. The leaves and seed pods