Book Aloe (Aloe suprafoliata)

Book Aloe

Aloe suprafoliata

Its stacked leaves form a geometric spiral, a sculptural desert gem. Succulent rosette plant; common name: Book Aloe.

Full sun
0.5–1/week
Beginner
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Plant Needs

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Sunlight Full sun to partial sun; tolerate intense desert sunlight, but provide partial shade during extreme midday heat in hot climates
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Watering Water deeply only when the soil is completely dry; avoid overwatering to prevent root rot
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Temperature Tolerates mild frost down to 5°C; prefers warm arid conditions; avoid temperatures below 0°C
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Characteristics

  • Leaf: Thick triangular leaves arranged in a tight spiral; green to grey-green with small white marginal teeth
  • Flower: Tubular orange-red blooms clustered on tall branched spikes
  • Stem: Short woody stem partially covered by persistent old leaf bases
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Care Guide

Watering

Water deeply when soil is fully dry; reduce frequency during extreme heat

Fertilization

Diluted low-nitrogen succulent fertilizer once every 2 months. Use phosphorus-rich fertilizer to support flowering

Eggshell powder topdress:Crush dried eggshells into fine powder; sprinkle lightly on soil surface; avoid direct contact with leaves to prevent burning
Pruning
  • Remove dried, brown leaf bases at the rosette base to maintain tidy appearance
  • Trim spent flower spikes after blooming to conserve the plant's energy
  • Prune damaged or diseased leaves at the base to prevent spread of rot
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed toxic; contains saponins and anthraquinones, causing vomiting, diarrhea, and lethargy

Humans: Contains aloin; ingestion causes mild gastrointestinal irritation; skin irritation in sensitive individuals

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental succulent for rock gardens and container displays; limited traditional medicinal use in South African communities