Northern Catalpa

Catalpa speciosa

Bignoniaceae

Northern Catalpa tree
Photo by Placeholder via System Generated • CC0 (2025-05-28)

Description

Northern Catalpa is a fast-growing tree with huge heart-shaped leaves and showy white flowers. Native to the midwest but widely planted in Buffalo, it's known for its tropical appearance and long bean-like seed pods that persist through winter.

Characteristics

Leaf Type

simple

Leaf Shape

large heart-shaped, 6-12 inches long

Height

50-70 feet

Bark

gray-brown with irregular ridges and furrows

Fruit

long bean-like pods 12-20 inches

Flowers

white with purple spots

Identification Tips

  • Huge heart-shaped leaves (largest of any native tree)
  • Showy white flowers with purple markings
  • Long bean-like pods persist through winter
  • Coarse branching pattern
  • Leaves have no scent when crushed

Seasonal Changes

Spring

Large leaves emerge late

Summer

Showy white flowers in June, tropical appearance

Fall

Yellow-green fall color, drops leaves early

Winter

Long bean pods hang from branches

Habitat & Growing Conditions

Hardiness Zones

4, 5, 6, 7, 8

Soil Preference

moist, well-drained, adaptable

Sun Requirements

full sun

Image Gallery

Northern Catalpa leaf

Leaves

Photo by Placeholder via System Generated • CC0
Northern Catalpa bark

Bark

Photo by botany324 via iNaturalist • CC BY-NC 4.0 View original
Northern Catalpa in winter

Winter

Photo by Placeholder via System Generated • CC0