Hawaiian Yellow Hibiscus (Hibiscus brackenridgei)

Hawaiian Yellow Hibiscus

Hibiscus brackenridgei

It blooms with sunny yellow petals, a tropical gem of Hawaiian landscapes. Evergreen flowering shrub; common name: pua aloalo.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; thrives in bright, direct sunlight with afternoon shade in hot climates
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Watering Water deeply when top 5 cm of soil is dry; avoid overwatering to prevent root rot
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Temperature Prefers warm tropical temperatures; protect from frost below 10°C
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Characteristics

  • Leaf: Oval to heart-shaped, glossy green, with serrated margins
  • Flower: Large, bright yellow, 10–15 cm diameter, with five ruffled petals and prominent central stamen
  • Stem: Woody, gray-brown bark, branching upright habit
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Care Guide

Watering

Keep soil consistently moist but not waterlogged

Fertilization

Feed every 2 weeks with balanced fertilizer. Cease fertilization in winter to avoid new growth damage from cold

Banana peel compost tea:Soak fully composted banana peels in water for 24 hours, dilute 1:20 for root drench; avoid raw peels to prevent pests
Pruning
  • Remove spent blooms to encourage continuous flowering
  • Trim overgrown branches in late winter to maintain shape
  • Remove dead or diseased wood to improve airflow and health
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxicity to humans

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Garden Uses & Culture

Culture: State flower of Hawaii, symbolizing beauty and resilience

Usage: Ornamental garden plant; cut flower arrangements