Catalpas are among the few hardy deciduous trees that can compete in flower and leaf with subtropical species. Large, upright clusters of trumpet-shaped, 2-in. wide flowers are pure white, with stripes and markings in yellow and soft brown. These are displayed in late spring and summer above large, bold, heart-shaped leaves. Flowers are followed by long, bean-shaped seed capsules sometimes called “Indian beans.“Catalpa speciosa
Native to central U.S., this tree grows 40 to 60 ft. tall, 20 to 40 ft. wide. Heart-shaped leaves are 6 to 12 in. long and odorless when crushed. Fewer flowers per cluster than for C. bignonioides.
Native to Texas, New Mexico. To 2 3 ft. tall, 1 1/2 ft. across. Blooms heavily, bearing re...
Foliage clump to 2–3 ft. wide. Oval to lance-shaped, 1– 1/2 -ft.-long, toothed, dull grayi...
Native to Japan, Korea, China. Variable in size and foliage. Blooms in late summer or fall. Flowers ar...