Astroloba bullulata (Jacq.) Uitewaal
Blistered astroloba
Astroloba bullulata is one of the most attractive species in the genus, prized for its blistered or pustulate leaf surface that gives it a unique visual texture. Native to the arid zones of the Western Cape (Oudtshoorn, Tankwa Karoo), it forms dense rosettes of dark green to brown leaves with a spiny tip. Its white tubular flowers appear on slender racemes.
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© S Molteno, Wikimedia Commons
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Overview
| Category | Classification |
|---|---|
| Family | Asphodelaceae |
| Genus | Astroloba |
| Growth Habit | Compact 5-ranked spiral rosette; can branch and form clumps over time; height 10–20 cm. |
| Conservation Status | Not Evaluated (NE) by IUCN; locally common in its Karoo habitats. |
| pH Target | 6.0–7.0 |
| Type | Well-drained, sandy with some organic matter |
Origin & Habitat
Morphology
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Requirements
Soil & Substrate
Type
Well-drained, sandy with some organic matter
groups Beneficial Associations
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Propagation Strategy
O
O
Every 2–3 years in spring
Diluted cactus fertilizer (¼ dose) monthly in spring and summer
Uses & Applications
Precautions / Toxicity
Not toxic to humans; possibly mildly irritant to pets
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Plant Health
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"The pustulate leaf texture is the most distinctive feature of A. bullulata and makes it one of the most sought after by Cape succulent collectors. A morphological continuum with A. pentagona exists in zones of sympatry."
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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.