Large clusters of white, bell-shaped flowers, blooming in late spring; large, heart-shaped leaves.
Full sun or partial shade; best in moist, well-drained soils, but tolerates wet, dry and alkaline sites.
Additional pests and problems that may affect this plant:
Relatively trouble-free; sometimes troubled the catalpa sphinx moth,powdery mildew, and leaf spots.
The tree is large and coarse and may not fit into many landscapes, the fruit can be messy when they fall.