Franklin & Marshall Northern Catalpa (Catalpa speciosa) In autumn, mature catalpa seed pods turn brown and often hang on the tree through late fall and into winter. Today's @marthastewartblog looks at some of the seeds, berries, and cones of Indian bean tree (catalpa tree) bean uses? : r foraging Is It Safe To Smoke Catalpa Pods About Southern Catalpa (Catalpa bignonioides): Essential Guide What is the catalpa tree and its uses?