Cocoon Plant (Senecio haworthii)

Cocoon Plant

Senecio haworthii

Soft silvery foliage wraps stems like tiny cocoons, a whimsical desert succulent. Evergreen succulent shrub; common names: cocoon plant, woolly senecio.

Full sun
1/week
Beginner
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Plant Needs

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Sunlight Bright full sun to partial sun; tolerate mild shade but may lose intense silvery foliage color
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Watering Water deeply only when the entire soil medium is completely dry; avoid overwatering to prevent root rot
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Temperature Thrives in warm, arid conditions; protect from frost and temperatures below 5°C
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Characteristics

  • Leaf: Cylindrical, densely covered in white woolly trichomes, 2–4 cm long
  • Stem: Woody, branching, silvery-green with mature growth
  • Flower: Small yellow daisy-like blooms in terminal clusters
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Care Guide

Watering

Water when top 5 cm of soil is fully dry; reduce frequency in high humidity

Fertilization

Diluted succulent fertilizer once every 6 weeks. Use low-nitrogen, balanced succulent feed to avoid leggy growth

Banana peel compost tea:Compost banana peels for 2–3 weeks to break down nutrients; dilute 1:20 with water for root drench; avoid applying directly to foliage
Pruning
  • Remove dead, yellowing foliage to maintain tidy form and improve airflow
  • Trim leggy stems in early spring to encourage bushier, compact growth
  • Cut back spent flower heads to redirect energy to foliage development
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; pyrrolizidine alkaloids may cause liver failure, vomiting, and lethargy

Humans: Contains pyrrolizidine alkaloids; prolonged ingestion can cause liver damage

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Garden Uses & Culture

Culture: N/A

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