Aloidendron pillansii (L.Guthrie) Klopper & Gideon F.Sm.
Giant quiver tree
Aloidendron pillansii, the giant quiver tree, is the largest and most threatened species in the genus. It can reach 10–12 metres tall with a trunk up to 1.5 m in diameter in the oldest specimens. Its range is restricted to the stony plains and rocky ravines of Namaqualand (South Africa) and southern Namibia, where it lives in some of the continent's most arid zones. Listed as Critically Endangered (CR) by the IUCN, its populations have declined dramatically: many individuals are centuries old and natural regeneration is almost absent across much of its range. Flowers are yellow, similar to the kokerboom, but the species is distinguished by its longer leaves, more massive trunk and tendency to branch near the base.
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© Votpuske, Wikimedia Commons
CC BY 4.0
Overview
| Category | Classification |
|---|---|
| Family | Asphodelaceae |
| Genus | Aloidendron |
| Growth Habit | Massive succulent tree with single or low-branching trunk; large, open crown of terminal rosettes. Extremely slow growing: may take 50–80 years to reach 5 m. |
| Conservation Status | Critically Endangered (CR) – IUCN; one of the world's most threatened succulent plants |
| pH Target | 6,5 – 8,0 |
| Type | Decomposed quartzite and granite plains with coarse gravel. Perfect drainage absolutely essential. |
Origin & Habitat
Morphology
Lanceolate leaves 45–70 cm, glaucous to yellowish-green, with pale yellow toothed margins, grouped in very dense terminal rosettes.
ecoTubular golden-yellow flowers 3–4 cm, in dense conical racemes; winter flowering (June–August) with abundant nectar production.
ecoVery massive trunk, up to 1.5 m in diameter at the base, golden-grey bark peeling in plates. May branch from the base, unlike the typical kokerboom.
ecoVery extensive root system, both shallow and deep, adapted to capture coastal fog moisture and the scarce Namaqualand rains.
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Requirements
Soil & Substrate
Type
Decomposed quartzite and granite plains with coarse gravel. Perfect drainage absolutely essential.
groups Beneficial Associations
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Propagation Strategy
- 1 Obtain seeds from authorised botanical collections (protected species).
- 2 Sow in pure mineral substrate (coarse quartz + perlite 1:1) at 28–32 °C.
- 3 Maintain minimum moisture; mist lightly only until germination.
- 4 Grow in pots for 5–10 years before any definitive transplanting.
T
Any watering in winter.
Every 5–7 years in juveniles; avoid transplanting adults.
Optional: once a year in spring with very diluted mineral fertilizer. Adults in the ground do not require fertilization.
Uses & Applications
Precautions / Toxicity
No published toxicity data. Likely a mild irritant like other arborescent aloes.
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Plant Health
Rapid basal rot from any overwatering; 100% mineral substrate mandatory.
Mealybug on rosettes; treat with imidacloprid or neem oil.
Sensitive to prolonged frost (below –3 °C); protect in regions with cold winters.
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"Aloidendron pillansii ranks among the 10 most threatened succulent plants in Africa according to the IUCN. Known wild specimens grow so slowly that many living individuals are 200–400 years old. Natural regeneration fails across much of its range due to seed predation and climate change. Ex situ propagation projects at Kirstenbosch and Hantam NP are critical for its survival."
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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.