Water Hickory (Carya aquatica)

Water Hickory

Carya aquatica

Its deep roots anchor wet soils like a silent guardian. Deciduous hardwood tree; common name: Water Hickory.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; tolerates wet soils better than most hickory species
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Watering Tolerates temporary standing water; avoid prolonged drought conditions
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Temperature Hardy to USDA zones 6–9; withstands mild frost and summer heat stress
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Characteristics

  • Leaf: Pinnately compound, 20–40 cm long with 7–11 lanceolate leaflets; glossy green above, pale and pubescent below
  • Flower: Monoecious; drooping male catkins and small, greenish female flower clusters
  • Stem/Bark: Mature bark is gray-brown, furrowed into scaly, interlacing ridges
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Care Guide

Watering

Keep soil consistently moist; tolerate seasonal flooding events

Fertilization

Apply well-rotted compost once monthly. Use nitrogen-balanced organic feeds to support root and canopy development

Banana peel tea:Steep 2–3 banana peels in 4 liters of water for 3 days; dilute 1:10 for root drench to support root health
Pruning
  • Remove dead, damaged, or crossing branches in late winter before new growth emerges
  • Thin overcrowded canopy branches to improve airflow and light penetration
  • Trim low lower branches for ground clearance if grown in a landscape setting
  • Avoid heavy pruning during active growing season to prevent stress
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No listed toxicity to cats

Humans: No documented toxicity to humans; nuts are edible but have a bitter flavor

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Garden Uses & Culture

Culture: N/A

Usage: Timber for tool handles; small, bitter edible nuts; riparian erosion control