The southern catalpa is an attractive small to medium sized deciduous tree that grows to about 25-50 ft in height. It is of similar width with a short trunk that supports a broad, open and rounded crown. Catalpa has large tropical looking heart-shaped leaves that are up to 8 in long and held oppositely on the stems (often in a whorl with three leaves emerging from the same point along the stem). In spring the southern catalpa produces showy 6-10 in branching flower clusters (panicles) at the stem tips. The white bell-shaped blossoms are 2 in in diameter and patterned with small purple spots and two large orange markings at the throat. The flowers are followed by long slender cigar-shaped pods up to 16 in in lengh. The green pods ripen to brown in fall and split to release flat fringed seeds.
Best time to sow is fall. Cover slightly with soil. No special requirements. Very easy.