
Northern catalpa
Catalpa speciosa
Northern catalpa is a fast-growing shade tree celebrated for its bold tropical-looking leaves and dramatic clusters of white orchid-like flowers in late spring. Plant in full sun to partial shade in any well-drained soil; it is remarkably adaptable to urban conditions once established. Minimal pruning is needed — simply remove dead or crossing branches in late winter to maintain a strong structure.
Care Level
Low
Sun
Partial Shade
Water
Moderate
Growth Rate
Fast
Mature Height
240″ – 480″
Soil
loam
Life Cycle
Perennial
Spacing
240″
Flowers
white
Watering Schedule
Every 10-14 Days • Water Deeply At The Base; Allow Soil To Dry Moderately Between Waterings Once Established
Soil pH
5.5 – 7
Temperature
-25° – 95°F
Mature Spread
up to 240″
Root Depth
Medium
Foliage
Medium
Propagation: Seed
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Jul 1, 2022 by Byron Grimlock (cc-by-sa)
No nurseries currently have this species in stock.