European Hop-hornbeam (Ostrya carpinifolia)

European Hop-hornbeam

Ostrya carpinifolia

Its textured bark and hop-like fruit bring quiet woodland charm. Deciduous tree; common name: European Hop-hornbeam.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; tolerant of urban pollution and dry conditions
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Watering Drought-tolerant once established; water deeply during prolonged dry spells in the first 2 years post-planting
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Temperature Hardy to -20°C; adaptable to temperate climates, tolerant of summer heat and winter cold
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Characteristics

  • Leaf: Ovate with double-toothed margins, dark green above, paler beneath, turning yellow in autumn
  • Flower: Male catkins are pendulous; female catkins are upright, small green clusters
  • Fruit: Hop-like papery bract clusters enclosing tiny edible nuts
  • Bark: Smooth grey-brown, developing shallow fissures with maturity
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Care Guide

Watering

Water deeply every 7–10 days during dry periods

Fertilization

Apply well-rotted compost once annually. Avoid high-nitrogen fertilizers to prevent excessive foliage growth

Composted banana peel tea:Compost banana peels for 2–3 months, steep in water for 24 hours, dilute 1:20 for root drench to avoid nutrient burn
Pruning
  • Remove dead, damaged, or crossing branches in late winter while dormant
  • Thin crowded inner branches to improve air circulation and light penetration
  • Shape young trees in early spring to establish a balanced crown
  • Avoid heavy pruning, as the tree has a naturally rounded growth habit
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxic effects to humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental shade tree; dense wood used for tool handles and furniture