| Catalpa Family | | Species | Size | Basic Requirements |
| Northern Catalpa (Catalpa speciosa) | Mature height up to 60’ with a spread of 20 to 40’ | Zones 4 through 8, Full sun, any soil |
| White blossoms in summer | |
| Southern Catalpa (Catalpa bignonioides) | At 20 years height is 15’ with a spread of 15’. Mature height is 30 to 40’ with a spread of 35 to 50’,. Growth rate is fast as 12 to 15 inches per year. | Zones 5 through 9, Full sun, any soil |
| White blossoms in summer | |
| Chitalpa (Catalpa x Chilopsis) | Mature height of 25 to 30’ with a spread of 20’ | Zones (6) 7 through 9, Full sun, any soil |
| Lavender pink blossoms July to September | |
|
