Coral Tree (Erythrina lysistemon)

Coral Tree

Erythrina lysistemon

Vibrant coral blooms blaze like tropical embers. Deciduous flowering tree; common names: Coral Tree, Lucky Bean Tree.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Thrives in full sun to partial shade; requires bright, direct sunlight for optimal flowering
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Watering Water deeply when the top 5–10 cm of soil dries out; tolerate short periods of drought
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Temperature Hardy to light frost; prefers warm subtropical climates; protect from temperatures below -2°C
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Characteristics

  • Leaf: Trifoliate, glossy green leaflets with pointed tips; drop during dry dormant periods
  • Flower: Dense terminal clusters of bright coral-red, pea-shaped flowers
  • Stem/Bark: Grey-brown bark with paired sharp spines on young branches
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Care Guide

Watering

Keep soil evenly moist during active growth; avoid waterlogging

Fertilization

Apply balanced slow-release fertilizer once at budding. Avoid over-fertilizing to prevent excessive foliage growth at the expense of blooms

Banana peel compost tea:Soak fully composted banana peels in water for 24 hours; dilute 1:20 for root drench to support flower development
Pruning
  • Remove dead or damaged branches immediately after flowering to maintain canopy shape
  • Trim back overgrown shoots to encourage compact, bushy growth
  • Remove suckers from the base to prevent overcrowding and conserve plant energy
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-verified toxic; contains erythrina alkaloids that cause vomiting, diarrhea, lethargy, and potential tremors

Humans: Ingestion of seeds or foliage may cause mild gastrointestinal upset, including nausea and abdominal pain

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Garden Uses & Culture

Culture: Associated with good fortune in Southern African traditional practices; used in ceremonial garden plantings

Usage: Ornamental garden tree; provides nectar for birds and native pollinators