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Nature

Catalpa

What is catalpa?

· James MacDonald

Key facts

Genus Catalpa[1]
Family Bignoniaceae[2]
Plant type Flowering, deciduous trees[3]
Native regions North America, the Caribbean, East Asia[2]
USDA hardiness zones 4 to 8[4]
Longevity About 60 years[4]

Catalpa is a genus of flowering, deciduous trees in the family Bignoniaceae, native to North America, the Caribbean, and East Asia. It includes species like the Northern Catalpa and Southern Catalpa, known for their showy flowers and long, cigar-like seed pods.

Context

Catalpa is a genus of flowering, deciduous trees in the family Bignoniaceae, native to warm temperate and subtropical regions of North America, the Caribbean, and East Asia. They are commonly planted as ornamentals and street trees, valued for their showy flowers and heart-shaped leaves. The genus includes species like Northern Catalpa and Southern Catalpa, which produce long, cigar-like seed pods. Catalpa trees typically grow up to 30 meters tall and live about 60 years. They are hardy in USDA zones 4 to 8. [2] [3] [4] [5]

Documented claims

  • Catalpa trees are commonly planted as ornamentals. [3]
  • Catalpa trees are used widely as street trees. [5]
  • Catalpa trees have showy flowers. [3]
  • Catalpa trees were historically used for fence posts and railroad ties. [5]

Questions and answers

Is catalpa native to Canada?

Catalpa is native to North America, including parts of the United States, but not to Canada. [2]

What are the disadvantages of the catalpa tree?

Catalpa trees produce abundant litter from flowers and seedpods, which can be messy. [5]

Are catalpa beans safe to eat?

The sources do not provide information on the edibility of catalpa beans. [1]

What is the common name for catalpa?

Catalpa is also commonly called catawba. [2]

Sources

  1. Catalpa | Bates Canopy — bates.edu (retrieved August 3, 2026)
  2. [DOC] doc - USDA Plants Database — plants.usda.gov (retrieved August 3, 2026)
  3. Northern Catalpa - USDA Forest Service — fs.usda.gov (retrieved August 3, 2026)
  4. An Old Southern Favorite: Catalpa — utianews.tennessee.edu (retrieved August 3, 2026)
  5. Catalpa speciosa (Cigar Tree, Northern ... - Plant Toolbox — plants.ces.ncsu.edu (retrieved August 3, 2026)

Sources last checked August 3, 2026. · More in Nature