American Chestnut
Castanea dentata
Last reviewed: June 2026
American Chestnut is a deciduous tree native to eastern North America, blooming with fragrant white catkins in June and July. Once dominant in Appalachian forests, this species supports native bees and beetles as pollinators.
American Chestnut (Castanea dentata) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org (opens in new tab), last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
The USDA PLANTS Database (opens in new tab) does not flag American Chestnut as toxic to livestock.
Light
full sun
Water
medium
Size
480"–960" H × 300"–600" W
Bloom
Jun, Jul
Native to
AL, CT, DE, FL and 24 more states
Pollinators
bees, beetles
American chestnut is a majestic native tree that can reach 40-80 feet tall with a broad, spreading canopy. Once dominant in eastern forests, this species produces edible nuts and distinctive long, creamy white flower clusters in early summer. The serrated leaves turn golden yellow in fall before dropping.
Growing American Chestnut
Grow American Chestnut in full sun and medium water. Mature plants reach 480 to 960 inches tall and spread 300 to 600 inches wide. Expect high maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
American Chestnut takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Extremely large mature size unsuitable for most residential lots
- Susceptible to chestnut blight disease
- Nut drop creates maintenance issues
Wildlife value
Host plant for luna moth, banded hairstreak.
Supports bees and beetles with its abundant summer blooms, and the nuts provide food for wildlife when produced. The large canopy offers nesting sites and shelter for birds and other wildlife.
Common questions
- When does American Chestnut bloom?
- American Chestnut produces its characteristic long, white catkins during June and July, filling the air with a distinctive sweet fragrance.
- What pollinators visit American Chestnut?
- The fragrant flowers of American Chestnut attract various native bees and beetles, which are essential for pollination and nut production.
- Where is American Chestnut native?
- American Chestnut is native to eastern North America, naturally occurring from Maine south to Georgia and west to states like Illinois, Missouri, and Wisconsin.
- What growing conditions does American Chestnut prefer?
- American Chestnut thrives in full sun to partial sun with medium moisture levels, adapting well to well-drained soils in its native forest habitats.
- Is American Chestnut toxic to dogs?
- American Chestnut is not on the ASPCA Animal Poison Control Center toxic plant list for dogs (aspca.org).
- Is American Chestnut toxic to cats?
- American Chestnut is not on the ASPCA Animal Poison Control Center toxic plant list for cats (aspca.org).
- Is American Chestnut toxic to livestock?
- The USDA PLANTS Database does not flag American Chestnut as toxic to livestock.
- Is American Chestnut HOA-friendly?
- American Chestnut takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow American Chestnut? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz