Red Living Stone (Lithops optica 'Rubra')

Red Living Stone

Lithops optica 'Rubra'

It mimics desert stones to hide from herbivores, a tiny living sculpture. Succulent perennial; common name: red living stone.

Full sun
0.5/week
Beginner
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Plant Needs

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Sunlight Full direct sunlight for 6–8 hours daily; tolerate partial shade in extreme summer heat
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Watering Water deeply only when soil is completely dry; avoid frequent light watering to prevent root rot
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Temperature Thrives in 15–28°C; tolerate brief light frost down to 5°C with proper drainage
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Characteristics

  • Leaf: Pair of fused, fleshy, stone-like leaves with deep red to burgundy translucent tips
  • Flower: Daisy-like white or pale pink blooms, opening in daytime
  • Stem: Reduced, compressed stem hidden between leaf pairs
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Care Guide

Watering

Water once every 2–3 weeks when soil is fully dry

Fertilization

Diluted cactus fertilizer once monthly. Use half-strength fertilizer to avoid overfeeding delicate root systems

Eggshell powder topdressing:Crush dried eggshells into fine powder; sprinkle lightly on soil surface to add slow-release calcium without burning roots
Pruning
  • Remove dead outer leaf pairs as new growth emerges in spring
  • Trim dried flower stalks after blooming to maintain tidy appearance
  • Avoid cutting into fleshy leaf pairs to prevent infection and water loss
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic to cats

Humans: No known toxicity to humans

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Garden Uses & Culture

Culture: Symbolizes resilience and adaptation in harsh environments

Usage: Ornamental succulent for rock gardens, miniature container displays, and windowsill collections