Catalpa speciose

Mature Height: 40’ – 60’

Mature Spread: 20’ – 40’

This large tree grows fairly quickly to an upright, coarse and distinct form that provides interesting winter character. Its large leaves are bright green in summer, turning yellow-green to brown but often falling before turning. It showy, large white flowers appear in May to June followed by seed pods that persist into fall and winter. This tree should be pruned for strong branches because its brittle wood can break in early or late snowstorms or high wind. It tolerates different soil types and handles alkaline soil and has few insect and disease problems. It is considered to require a moderately low amount of water.

Source: coloradotrees.org