Katsura Tree (Cercidiphyllum japonicum)

Katsura Tree

Cercidiphyllum japonicum

Its autumn scent smells like burnt sugar, a warm golden farewell to the season. Deciduous tree; common name: katsura tree.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; tolerates moderate shade but produces best autumn color in full sun
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Watering Water deeply when top 10–15 cm of soil dries; drought-tolerant once fully established
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Temperature Hardy to -20°C; prefers cool to temperate climates; avoid prolonged extreme heat above 35°C
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Characteristics

  • Leaf: Heart-shaped, opposite arrangement; turns golden-yellow to pink in autumn
  • Flower: Small, inconspicuous, reddish-purple; dioecious (separate male/female trees)
  • Stem/Bark: Smooth, light brown when young; becomes fissured with age
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Care Guide

Watering

Water regularly during dry spells to maintain consistent soil moisture

Fertilization

Apply balanced slow-release fertilizer once at bud break. Fertilize only young or nutrient-deficient trees to prevent excessive weak growth

Eggshell powder topdress:Crush dried eggshells into fine powder; dust lightly around the base of the tree every 6 months to boost soil calcium content
Pruning
  • Remove dead or damaged branches in late winter before new growth emerges
  • Thin crowded interior branches to improve airflow and light penetration
  • Shape young trees to establish a strong central leader; avoid heavy pruning on mature specimens
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxic effects; safe for human contact and ingestion

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Garden Uses & Culture

Culture: Symbolizes gentle warmth and seasonal renewal in traditional Japanese garden design

Usage: Ornamental shade tree; valued for its autumn foliage and distinctive burnt-sugar scent