Carpinus caroliniana

American Hornbeam

A native deciduous understory tree admired for its smooth, sinewy, blue-gray bark that resembles flexed muscle. Finely textured, pleated green leaves emerge in spring, remain clean through summer, and turn yellow to orange-red in fall. Dense branching and a naturally compact habit give it refined structure and excellent shade tolerance.


Plant Characteristics


Type: Deciduous tree



Form: Rounded to irregular; dense, finely branched



Mature Width: 20–30 ft



Mature Height: 20–35 ft



Flower Color: Inconspicuous reddish catkins



Foliage Color: Medium green; yellow to orange-red fall color




Growing Conditions


USDA Hardiness Zones: 3a–9b



Light: Partial shade to full sun (best in light shade)



Soil: Moist, fertile, well-drained soils; tolerates clay



Water: Moderate; prefers consistent moisture



Maintenance: Low; minimal pruning needed




Landscape Uses
Woodland gardens, understory plantings, native landscapes, shaded lawns, and naturalized areas. Excellent for small spaces and ecologically focused designs.


Care Tips


Mulch to maintain soil moisture and protect roots



Prune lightly in late winter if needed



Performs best with protection from hot, dry conditions

Plant type

Deciduous Tree, Shade Tree

Height

20-25'

Width

20'-30'

Hardiness zones

3–9

Sunlight

Full Shade, Full Sun, Partial Shade

Growth rate

Slow

Bloom time

Spring

Flower color

Yellow

Leaf color

Green

Fall color

Orange Red

Soil

Clay, Loamy well-drained, Moist well-drained

Landscape use

Accent Plant, Hedge, Privacy Screen

Shape

Broad Upright

Bark

Smooth

Fruit

Yes

Drought tolerant

No