Snow-on-the-Mountain (Euphorbia marginata 'Kilimanjaro')

Snow-on-the-Mountain

Euphorbia marginata 'Kilimanjaro'

Crisp white-edged leaves glow like fresh snow, a cool contrast to green foliage. Annual ornamental; common name: Snow-on-the-Mountain.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Thrives in full sun to partial shade; full sun enhances the bright white leaf margins for optimal ornamental effect
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Watering Water deeply when the top 2–3 cm of soil feels dry; avoid overwatering to prevent root rot in heavy soil
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Temperature Prefers warm growing temperatures; tolerates light, brief frosts but performs best above 10°C; avoid prolonged heat over 35°C
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Characteristics

  • Leaf: Oval to lanceolate leaves with creamy white margins; upper leaves turn fully white in bloom
  • Flower: Tiny greenish-yellow cyathia clustered at stem tips; surrounded by showy white bracts
  • Stem: Erect, branching green stems with milky sap when broken
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Care Guide

Watering

Keep soil consistently moist but not waterlogged; increase watering during prolonged hot spells

Fertilization

Diluted balanced liquid feed every 2 weeks. Reduce feeding as plants approach flowering to prevent leggy growth

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 with water for root drench; avoid using raw peels to prevent pest infestations
Pruning
  • Pinch back young stem tips when plants reach 15 cm tall to encourage bushy, compact growth
  • Remove spent flower clusters to extend the blooming period through early autumn
  • Trim leggy or discolored stems mid-season to maintain a neat, uniform appearance
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-verified toxic; ingestion causes vomiting, diarrhea, and oral irritation; sap irritates skin

Humans: Milky sap causes mild skin and eye irritation; ingestion irritates oral and gastrointestinal mucosa

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Garden Uses & Culture

Culture: Symbolizes purity and fresh beginnings in floral arrangements and garden design

Usage: Ornamental border plant, cut flower filler for bouquets, and drought-tolerant xeriscape specimen