Meet My Nature Neighbor: The Catalpa Tree Heartspoken The beans pods on the catalpa are nearly as beautiful as the flowers. : r marijuanaenthusiasts 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 Denver dog poisoned by tree at Washington Park Underfoot: THE CIGAR TREE Northcentral Pennsylvania Conservancy