American Hornbeam (Carpinus caroliniana)

American Hornbeam

Carpinus caroliniana

Its muscular, fluted trunks hold quiet woodland elegance. Deciduous understory tree; common names: American hornbeam, blue beech.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Partial to full shade preferred; tolerates full sun in cool climates with consistent soil moisture
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Watering Water deeply during prolonged dry spells; drought-tolerant once established; avoid waterlogged soil
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Temperature Extremely cold-hardy; withstands summer heat when provided with adequate shade and moisture
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Characteristics

  • Leaf: Ovate with double-serrated margins; dark green foliage turns orange-red in fall
  • Flower: Male catkins droop in clusters; small upright female catkins develop into winged nutlets
  • Stem/Bark: Smooth, blue-gray fluted trunk with a distinctive muscle-like texture
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Care Guide

Watering

Water weekly during dry periods to maintain consistent soil moisture

Fertilization

Apply slow-release balanced fertilizer once in early spring. Avoid over-fertilization to prevent excessive foliage growth

Eggshell powder topdress:Crush dried eggshells into fine powder and spread around base; avoid direct contact with trunk to prevent fungal growth
Pruning
  • Prune in late winter to remove dead, damaged, or crossing branches
  • Shape to maintain desired form; avoid heavy pruning to preserve natural growth habit
  • Remove suckers at the base to preserve a single-trunk structure
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirms no toxicity to cats

Humans: No known toxic effects for humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental shade tree; provides wildlife habitat for birds and small mammals