Norfolk Island Hibiscus (Lagunaria patersonia)

Norfolk Island Hibiscus

Lagunaria patersonia

Soft pink blooms glow like tropical lanterns against glossy evergreen foliage. Evergreen tree; common names: Norfolk Island Hibiscus, Cow Itch Tree.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; thrives in coastal areas with moderate wind exposure
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Watering Water deeply when the top 5 cm of soil dries out; drought-tolerant once established
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Temperature Tolerates short periods of light frost (down to -2°C); prefers warm temperate to subtropical conditions
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Characteristics

  • Leaf: Glossy oval evergreen leaves with silvery undersides; covered in fine, irritating hairs
  • Flower: Bell-shaped pale pink to white blooms, 5–7 cm in diameter
  • Stem/Bark: Grey-brown smooth bark; young stems have dense itchy hairs
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Care Guide

Watering

Keep soil evenly moist during active growth periods

Fertilization

Diluted balanced liquid fertilizer every 4 weeks. Cease fertilization in autumn and winter

Banana peel compost tea:Use fully composted banana peels steeped in water for 3 days; dilute 1:20 for root drenching to avoid nutrient burn
Pruning
  • Wear thick gloves to avoid contact with irritating hairs while pruning
  • Remove dead or damaged branches in late winter to promote new growth
  • Prune to maintain desired shape; avoid heavy pruning that can stress the tree
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Irritating hairs cause oral and skin irritation if chewed or touched

Humans: Fine irritating hairs on leaves and stems cause skin/eye irritation; ingestion may trigger mild gastrointestinal upset

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental tree for coastal landscaping; can be shaped into a dense hedge