Franklin & Marshall Northern Catalpa (Catalpa speciosa) Northern Catalpa 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 Amazon.com : Catalpa speciosa, 2 Year Old 1 2 ft Tall,Northern Catalpa, Cigar Tree, Indian Bean, Sent with Roots Wrapped, no Leaves. : Patio, Lawn & Garden