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 Are catalpa seed pods viable after a storm? Catalpa Campus Trees Polk Salad Annie Buy Northern Catalpa Tree (Catalpa speciosa) FREE SHIPPING Wilson Bros Gardens 3 Gallon Pot Catawba Tree Underfoot: THE CIGAR TREE Northcentral Pennsylvania Conservancy