Brunsvigia bosmaniae F.M.Leight.
Bosman's Brunsvigia
Perennial bulbous geophyte with spectacular pink flowering, native to the Namaqualand and Karoo region of South Africa. Forms bulbs up to 15 cm diameter and produces umbels of 30–60 deep pink to crimson tubular flowers in summer, before the foliage emerges. Its seed dispersal strategy is unique: the mature floral scape detaches from the base and rolls driven by wind, sowing as it goes (tumbleweed phenomenon). Spectacular mass flowering associated with seasonal rains in Nieuwoudtville.
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© Rachel Saunders, CC BY-SA 3.0
CC BY-SA 3.0
Overview
| Category | Classification |
|---|---|
| Family | Amaryllidaceae |
| Genus | Brunsvigia |
| Growth Habit | Erect bulbous herb; hysteranthous (flowers before leaves) |
| Conservation Status | Least Concern (IUCN); locally abundant in Northern Cape |
| pH Target | 6.0–7.5 |
| Type | Quartzitic-sandy to clay-sandy, very free-draining, low in organic matter |
Origin & Habitat
Requirements
Soil & Substrate
Type
Quartzitic-sandy to clay-sandy, very free-draining, low in organic matter
groups Beneficial Associations
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Propagation Strategy
P
W
Every 5–6 years; they tolerate root disturbance very poorly
Low-nitrogen, high-phosphorus/potassium fertilizer at the start of the rainy season (autumn in the northern hemisphere)
Uses & Applications
Precautions / Toxicity
TOXIC. Contains Amaryllidaceae alkaloids (lycorine, narciclasine and related compounds). Dangerous to humans, dogs, cats and horses if the bulb is ingested. Can cause vomiting, diarrhoea, hypotension and convulsions. Keep out of reach of children and pets.
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Plant Health
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"The mass flowering of B. bosmaniae in Nieuwoudtville (Northern Cape) is one of the most celebrated botanical spectacles in South Africa, visited by thousands of tourists each austral autumn. The tumbleweed phenomenon is unique among African Amaryllidaceae genera."
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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.