Tree Mallow (Malva arborea)

Tree Mallow

Malva arborea

Its tall spires of pink blooms bring cottage garden charm. Herbaceous perennial shrub; common name: Tree Mallow.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; tolerates coastal wind exposure and mild drought
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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 Hardy to -10°C; tolerates mild frost and coastal summer heat
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Characteristics

  • Leaf: Round to heart-shaped, softly hairy, with shallow lobes and serrated margins
  • Flower: Clustered pink to pale lavender cup-shaped blooms with five petals, 3–5 cm wide
  • Stem: Woody at base, green to brown, densely covered in soft hairs
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Care Guide

Watering

Keep soil consistently moist during active growth periods

Fertilization

Diluted balanced fertilizer once monthly. Avoid high-nitrogen fertilizers to prevent excessive leaf growth over flowering

Banana peel tea:Soak 2–3 chopped banana peels in 1 L water for 3 days; strain and use to water plants directly; avoid overapplication to prevent nutrient buildup
Pruning
  • Deadhead spent blooms regularly to encourage continuous flowering
  • Prune back to 30 cm above ground in late winter to promote bushy new growth
  • Remove damaged or diseased stems to improve airflow and reduce pest risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic; no adverse effects reported

Humans: No known toxic effects on humans; young leaves are edible in small quantities

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental garden plant; young leaves can be added to salads or cooked as greens