Greathead's Aloe (Aloe greatheadii var. greatheadii)

Greathead's Aloe

Aloe greatheadii var. greatheadii

Fleshy leaves hold desert resilience, edged with sharp teeth. Succulent rosette; common name: Greathead's Aloe.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; tolerate direct sunlight but require protection from extreme midday summer heat to prevent leaf scorching
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Watering Allow soil to dry completely between waterings; avoid overwatering to prevent root rot, the primary health risk for this succulent
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Temperature Thrives in warm arid conditions; tolerate light frost but must be protected from temperatures below 5°C to avoid tissue damage
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Characteristics

  • Leaf: Thick triangular fleshy leaves in dense rosettes; green to grey-green with sharp white marginal teeth
  • Flower: Tubular orange-red flowers clustered on tall branched stalks
  • Stem: Short compact stem mostly obscured by leaf bases
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Care Guide

Watering

Water thoroughly when the top 5–7 cm of soil is completely dry

Fertilization

Diluted succulent-specific fertilizer once monthly. Discontinue fertilization during winter dormancy to avoid nutrient buildup

Eggshell powder topdress:Crush fully dried eggshells into fine powder; sprinkle lightly on the soil surface to add calcium without risk of over-fertilization or root burn
Pruning
  • Remove dead or withered leaves from the base of the rosette to improve airflow
  • Trim spent flower stalks at the base after blooming to conserve plant energy
  • Prune damaged or scorched leaf tips to maintain a tidy rosette shape
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic due to aloin content; ingestion causes gastrointestinal distress and potential organ irritation

Humans: Ingestion may cause nausea, abdominal pain, and diarrhea in large quantities; topical use is generally safe for minor skin irritation

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Garden Uses & Culture

Culture: Symbolizes endurance and natural healing in traditional Southern African medicinal practices

Usage: Ornamental succulent for rock gardens and container displays; traditional topical use for minor burns and skin irritations