Brazilian Raintree (Pithecellobium tortum)

Brazilian Raintree

Pithecellobium tortum

Its delicate leaves fold at night like a quiet curtsy. Deciduous bonsai favorite; common name: Brazilian Raintree.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full to partial sunlight; tolerate light shade, but avoid prolonged deep shade to maintain healthy growth
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Watering Water thoroughly when the top 2–3 cm of soil is dry; avoid overwatering to prevent root rot
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Temperature Thrives in 18–28°C; protect from frost temperatures below 10°C to avoid leaf damage
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Characteristics

  • Leaf: Bi-pinnate compound leaves with small oval leaflets that fold at night and during rainfall
  • Flower: Creamy-white spherical inflorescences with a subtle sweet fragrance
  • Stem/Bark: Thick, gnarled trunk with peeling brown-gray bark as it matures
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Care Guide

Watering

Keep soil evenly moist; increase watering frequency during hot, dry periods

Fertilization

Diluted balanced liquid fertilizer every 2 weeks. Avoid fertilizing during winter dormancy to prevent nutrient buildup

Eggshell powder topdress:Crush thoroughly washed eggshells into fine powder; sprinkle 1 teaspoon per pot every 3 months to boost soil calcium content and improve drainage
Pruning
  • Trim new growth to maintain desired bonsai shape during spring and summer growing seasons
  • Remove dead, damaged, or crossing branches to improve airflow and reduce disease risk
  • Lightly prune roots during repotting every 2–3 years to control root bound growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No reported toxicity to cats

Humans: No known toxic effects on humans

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Garden Uses & Culture

Culture: Valued in bonsai culture for its adaptive growth and unique leaf-folding trait, symbolizing resilience

Usage: Bonsai specimen, ornamental garden tree in warm climates