Astroloba congesta (Salm-Dyck) Uitewaal
Congested astroloba
Astroloba congesta is a very dense rosette succulent with tightly packed triangular leaves forming a compact 5-ranked spiral. Native to the Western Cape of South Africa, it grows in rocky soil habitats. It is one of the slowest-growing species in the genus, highly valued for the elegance of its form and the compactness of its rosette.
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© S Molteno, Wikimedia Commons
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Overview
| Category | Classification |
|---|---|
| Family | Asphodelaceae |
| Genus | Astroloba |
| Growth Habit | Very compact 5-ranked spiral rosette; slow growing; rarely exceeds 15 cm in height. |
| Conservation Status | Not Evaluated (NE) by IUCN. |
| 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
T
W
Every 3–4 years or when strictly necessary
Very diluted fertilizer (1/4 dose) once in spring and once in 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 taxonomy of A. congesta and A. deltoidea has been historically confused; some authors treat them as varieties of the same species. The original botanical illustration of 1849-1863 (Salm-Dyck) clearly shows the diagnostic characters."
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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.