Madagascar Jewel (Euphorbia leuconeura)

Madagascar Jewel

Euphorbia leuconeura

Milky sap guards its geometric foliage, a sculptural desert gem. Evergreen succulent shrub; common name: Madagascar jewel.

Partial sun
1/week
Beginner
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Plant Needs

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Sunlight Bright indirect light; tolerates partial morning sun, avoid harsh midday summer sun to prevent leaf scorch
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Watering Allow soil to dry completely between waterings; avoid standing water to prevent root rot
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Temperature Thrives at 18–26°C; protect from temperatures below 12°C to avoid leaf drop and stem damage
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Characteristics

  • Leaf: Oblong, leathery leaves with pale white midribs; arranged in tight spiral whorls around stems
  • Stem: Thick, fleshy green stems with paired small spines at each leaf node
  • Flower: Inconspicuous cyathia (false flowers) with tiny yellowish bracts
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Care Guide

Watering

Water when top 5 cm of soil is fully dry; avoid wetting leaves or stems

Fertilization

Diluted succulent fertilizer once every 6 weeks. Avoid fertilizing in winter during dormancy to prevent nutrient burn

Banana peel tea:Soak dried banana peels in water for 24 hours; dilute 1:20 for root drench; discard solid peels to avoid pest infestations
Pruning
  • Wear protective gloves to avoid contact with irritating milky sap
  • Trim overgrown stems in spring to maintain compact, upright shape
  • Remove yellowing or damaged leaves at their base to improve airflow
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; sap irritates mouth and digestive tract, may cause vomiting and drooling

Humans: Milky sap causes skin and eye irritation; ingestion leads to mild gastrointestinal upset

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Garden Uses & Culture

Culture: Symbolizes resilience and minimalist beauty; popular in modern indoor decor

Usage: Ornamental succulent for sunny windowsills and tabletops; rarely grown outdoors in frost-free regions