Gasteria batesiana G.D.Rowley
Bates' Gasteria
Gasteria batesiana, known as 'Rough Gasteria', is a succulent native to the Transkei region of South Africa, distinguished by the extremely rough and almost scratchy texture of its dark green leaves, arranged in two opposite rows. Its 20 cm height and tolerance of low-light conditions makes its culture similar to G. carinata, though its unusually pronounced leaf texture gives it a unique botanical personality highly valued among succulent collectors.
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© Cliff (Arlington, Virginia, USA)
CC BY 2.0
Overview
| Category | Classification |
|---|---|
| Family | Asphodelaceae |
| Genus | Gasteria |
| Growth Habit | Compact distichous rosette 20 cm; leaves in two very ordered opposite rows; forms clumps via basal offsets; slow growth. |
| Conservation Status | Species not threatened. Distributed in the Transkei, Eastern Cape, South Africa; well represented in cultivation. |
| pH Target | 6.0 – 7.0 |
| Type | Porous succulent substrate: all-purpose soil + 25% perlite + 15% sand. Good drainage but with some moisture retention. |
Origin & Habitat
Morphology
Linguiform leaves 8–15 cm, dark green to almost black, with an extremely rough surface covered in prominent white tubercles and warts on both faces; rougher to the touch than G. carinata.
ecoPink-orange tubular flowers with enlarged gastric base, in racemes on scapes 25–50 cm. Blooms in spring.
ecoVery short or nonexistent stem; the distichous rosette emerges practically at ground level.
ecoWhite fleshy roots of moderate depth; sensitive to rot from excess moisture.
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Requirements
Soil & Substrate
Type
Porous succulent substrate: all-purpose soil + 25% perlite + 15% sand. Good drainage but with some moisture retention.
groups Beneficial Associations
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Propagation Strategy
- 1 Remove the plant from the pot in spring and separate offsets with roots.
- 2 Cut cleanly with a sterilized blade and let dry for 2 days.
- 3 Plant each offset in moist porous substrate.
- 4 Water lightly after 7 days.
- 1 Extract a mature outer leaf with gentle twist.
- 2 Dry the cut for 2–3 days.
- 3 Place on dry substrate in indirect light.
- 4 Mist every 4 days; roots in 8–12 weeks.
Place in the darkest corners of the room where other succulents would not thrive.
Watering too frequently in winter, the main cause of rot indoors.
Every 3 years in spring; gasteria prefers to be slightly root-bound.
Quarter-strength succulent fertilizer once in spring and once in early summer; none for the rest of the year.
Uses & Applications
Precautions / Toxicity
Non-toxic to humans, dogs, and cats. Safe plant in the home and office.
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Plant Health
Mealybugs between the two rows of leaves; hard to detect due to surface roughness; inspect with a magnifier and treat with alcohol.
Root rot from overwatering or poor drainage; reduce watering frequency especially in winter.
Brown soft scales (Coccus hesperidum) camouflaged among leaf tubercles; carefully scrape off and apply neem oil.
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"The extremely rough texture of G. batesiana is not merely ornamental: the surface tubercles and warts increase the leaf surface area exposed to nocturnal dew, enabling atmospheric moisture capture in a habitat where rainfall is scarce and unpredictable."
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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.