Silver Ruffles (Cotyledon undulata)

Silver Ruffles

Cotyledon undulata

Silver-frosted wavy leaves bring soft, sculptural charm. Succulent perennial; common names: Silver Ruffles, Wavy Cotyledon.

Full sun
1/week
Beginner
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Plant Needs

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Sunlight Bright direct to partial sun; maintain full sun for vibrant silvery foliage; filter midday sun in extreme heat to prevent leaf scorch
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Watering Allow soil to dry completely between waterings; avoid overwatering to prevent root rot, the most common health risk
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Temperature Thrives in 15–25°C; protect from frost below 5°C to prevent leaf damage and stem rot
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Characteristics

  • Leaf: Thick, fleshy, wavy-edged leaves covered in silvery-white powdery bloom (farina)
  • Flower: Tubular, coral-pink to orange flowers on upright, branching stems
  • Stem: Woody, peeling bark on mature, branching stems
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Care Guide

Watering

Water when soil is fully dry; increase frequency slightly during prolonged hot, dry periods

Fertilization

Diluted succulent fertilizer once monthly. Do not fertilize during winter dormancy to prevent nutrient buildup and root damage

Eggshell powder topdress:Crush clean, fully dried eggshells into fine powder; sprinkle lightly on soil surface, avoiding direct contact with leaves to prevent burning
Pruning
  • Trim leggy stems in early spring to encourage compact, bushy growth
  • Remove dead or yellowing leaves at the base to improve airflow and appearance
  • Cut back spent flower stems after blooming to redirect energy to new foliage growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; ingestion causes vomiting, diarrhea, lethargy, and potential irregular heart rate

Humans: Contains bufadienolides; ingestion causes mild gastrointestinal upset; sap may irritate sensitive skin

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Garden Uses & Culture

Culture: Symbolizes resilience and adaptability to arid growing conditions

Usage: Ornamental succulent for rock gardens, container planters, and bright indoor decor