Pincushion Protea (Leucospermum cordifolium)

Pincushion Protea

Leucospermum cordifolium

Vibrant pincushion blooms burst like fireworks in summer. Evergreen flowering shrub; common name: Pincushion Protea.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun exposure required for abundant flowering; tolerate light partial shade in extremely hot climates
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Watering Water deeply but infrequently; allow the top 5–10 cm of soil to dry completely between waterings to prevent root rot
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Temperature Thrives in mild Mediterranean climates; protect from frost below 5°C to avoid foliage damage
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Characteristics

  • Leaf: Leathery, heart-shaped (cordate) leaves with slightly serrated margins, glossy green
  • Flower: Round, pincushion-like inflorescences with brightly colored styles (orange, yellow, red)
  • Stem: Woody, branching stems with a dense, bushy growth habit
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Care Guide

Watering

Keep soil consistently moist but not waterlogged during the active flowering period

Fertilization

Diluted low-phosphorus feed once every 6 weeks. Use fertilizer formulated for proteaceous plants to avoid phosphorus burn, which is toxic to members of the Proteaceae family

Banana peel compost tea:Use only fully composted banana peels; dilute 1:20 with water for root drenching to avoid attracting pests and prevent nutrient buildup
Pruning
  • Deadhead spent blooms promptly to encourage new growth and potential late-season reblooming
  • Thin overcrowded inner branches in late winter to improve airflow and reduce fungal disease risk
  • Trim back leggy, elongated stems after flowering to maintain a compact, rounded growth habit
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No recorded toxicity to cats

Humans: No known toxicity to humans

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Garden Uses & Culture

Culture: Symbolizes vibrancy, success, and celebration in floral arrangements

Usage: Commercial cut flower production, ornamental garden shrub, container specimen for patios