Aloe peglerae
Highveld aloe / Bobbejaanaalwyn
Compact, spherical aloe of the Highveld plateau in South Africa, endemic to Gauteng and southern Limpopo. Considered one of the rarest and most threatened aloes in South Africa, protected by national legislation. Its unique globose rosette with inward-curving leaves is immediately recognizable. Critically endangered due to habitat loss from urban expansion.
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Overview
| Category | Classification |
|---|---|
| Family | Asphodelaceae |
| Genus | Aloe |
| Growth Habit | Single spherical rosette, acaulescent. |
| Conservation Status | Critically Endangered (CR); endemic to Gauteng/southern Limpopo, under severe pressure from urbanization. |
| pH Target | 5.5–7.0 |
| Type | Clay-rocky plateau soil, well-drained at the surface. |
Origin & Habitat
Morphology
Fleshy, lanceolate leaves, curving inward over the rosette, green with pink or reddish tones in full sun. Margins with robust brownish-red spines. Leaves orient upward creating the characteristic spherical shape.
ecoAcaulescent or with very short stem. The single rosette is the distinguishing mark; it rarely produces offsets under natural conditions.
ecoBranched inflorescence with tubular red to orange-red flowers. The scape emerges from the center of the spherical rosette. Flowering from early spring to summer.
ecoFibrous root system extending horizontally through the rocky and clay substrate of the plateau.
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Requirements
Soil & Substrate
Type
Clay-rocky plateau soil, well-drained at the surface.
groups Beneficial Associations
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Propagation Strategy
- 1 Sow in cactus substrate with 40% fine sand.
- 2 Substrate temperature between 20–25 °C.
- 3 Keep slightly moist without waterlogging.
- 4 Expose to bright indirect light until first true leaves appear.
- 5 Transplant with extreme care at 6–8 months.
Very slow-growing species; requires patience.
Overwatering especially in winter; the plateau has dry winters.
Every 5 years at most; preferably grown in the ground.
No fertilization or minimal mineral application in early spring.
Uses & Applications
Precautions / Toxicity
Moderately toxic if ingested.
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"Critically endangered by Johannesburg's urban expansion. Most of its natural populations have disappeared or are fragmented. It is an absolute priority for ex situ conservation in South Africa."
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Scientific Integrity
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Sources
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Discussion
Disclaimer
This species record is provided for educational and informational purposes only. Jardín Roca Negra does not guarantee the accuracy or completeness of the data. Content is community-curated and may be subject to revision; it should not replace advice from a qualified botanist. This species may be toxic, invasive, or subject to legal restrictions — verify before handling or cultivating. Jardín Roca Negra accepts no liability for any harm arising from reliance on this information. Images are reproduced under Creative Commons or equivalent free licenses; credits are noted below each image.