| Scientific Name: | Catalpa speciosa |
| Common Name: | western catalpa, northern catalpa |
| Family Name: | Bignoniaceae |
| Origin: | U.S. - central, U.S. - southeast |
| Hardiness Zone: | Zone 5: (-29 to -23 °C) |
| Plant Type: | Tree - deciduous |
| Mature Size: | 10 - 15m x 10 - 15m (height x width) |
| Habit: | Irregular, Open |
| Form: | Oval - vertical |
| Texture: | Coarse |
| Landscape Uses: | Specimen plant |
| Exposure: | Full sun, Part sun/part shade |
| Soil or Media: | Well-drained |
| Leaves: | Simple, Opposite, Whorled, Soft flexible, Pubescent, Ovate, Entire |
| Flowers: | Thyrse, White, Yellow, Violet, Jun-Jul |
| Fruit: | Capsule, Brown, Sep-Oct, (Persistent) |
| Key ID Features: | |
| Leaves mostly opposite, blades ovate, most 20-30cm long x 10-20cm wide, entire with tomentose undersides, petioles 6-9cm long; flowers in white, large, and showy "panicles". Winter ID: fruit to 30cm long, bean-like capsule containing a fringed seed (broader with ends less tapered with more but shorter hairs than southern catalpa); buds globular, flattened, 1-2mm wide; leaf scars concave, circular, three per node with many bundle scars arranged in a ring. | |