Myrtle-Leaf Milkwort (Polygala myrtifolia)

Myrtle-Leaf Milkwort

Polygala myrtifolia

It blooms in soft purple clouds, a cheerful evergreen shrub. Common name: Myrtle-Leaf Milkwort.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; full sun promotes maximum flowering, while partial shade suits hot inland climates
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Watering Water deeply when the top 2–3 cm of soil dries out; drought-tolerant once established in well-drained soil
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Temperature Thrives in 15–25°C; tolerates light frost down to 5°C with minimal protection
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Characteristics

  • Leaf: Small, oval, glossy dark green leaves with myrtle-like texture
  • Flower: Clusters of pea-like purple, pink, or white blooms with distinctive fringed keels
  • Stem: Slender, woody stems with dense branching for a full, rounded habit
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Care Guide

Watering

Keep soil consistently moist during active growth periods

Fertilization

Diluted balanced fertilizer monthly. Discontinue fertilizing in autumn to support hardening off for winter

Banana peel tea:Soak chopped banana peels in water for 3 days; dilute 1:10 before applying as a root drench to avoid nutrient burn
Pruning
  • Deadhead spent blooms regularly to encourage continuous flowering
  • Trim back leggy stems in late winter to maintain a compact, rounded shape
  • Remove damaged or diseased branches to improve airflow and reduce pest risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No documented toxicity to cats

Humans: No documented toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental garden shrub, coastal landscaping, container cultivation