Kalanchoe marmorata Baker
Penwiper Plant / Spotted Kalanchoe
Kalanchoe marmorata is a perennial succulent native to the arid regions of central and eastern Africa (Ethiopia, Somalia, Sudan, Democratic Republic of the Congo, Kenya, Rwanda, and Tanzania), prized for its large glaucous bluish-green leaves irregularly spotted with purplish or brown blotches that give it the marbled appearance referenced by its specific epithet marmorata.
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Overview
| Category | Classification |
|---|---|
| Family | Crassulaceae |
| Genus | Kalanchoe |
| Growth Habit | Erect to decumbent succulent shrub; may branch at the base with age. |
| Conservation Status | No IUCN threat category; wide distribution in East Africa; not invasive. |
| pH Target | 6.0 – 7.5 |
| Type | Gravelly-sandy, well-drained; tolerates calcareous and laterite soils. |
Origin & Habitat
Morphology
Obovate to subcircular, fleshy leaves up to 20 cm long and 12.5 cm wide; glabrous surface, glaucous-green with irregular purplish-brown spots that form a unique marbled pattern on each individual; margins slightly wavy to crenate.
ecoErect to suberect, succulent, glaucous-green stems; in cultivation reaching 30–40 cm, but in natural habitat may exceed 1.2 m with basal branching.
ecoStar-shaped, white to pale-pink flowers with four petals, borne on erect inflorescences in late winter to spring; simple but elegant in appearance above the glaucous foliage.
ecoShallow fibrous roots, adapted to rocky, stony, well-drained soils of African semi-arid regions.
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Requirements
Soil & Substrate
Type
Gravelly-sandy, well-drained; tolerates calcareous and laterite soils.
groups Beneficial Associations
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Propagation Strategy
- 1 Cut a 6–10 cm stem in spring or early summer.
- 2 Remove lower leaves; callus for 1–2 days.
- 3 Plant in well-draining mix; water moderately.
- 4 Rooting in 3–5 weeks.
- 1 Remove a grey-and-white mottled leaf with the complete base.
- 2 Callus for 2–3 days.
- 3 Place on moist mineral substrate; maintain at 22–26 °C.
- 4 Emerging plantlet in 8–12 weeks.
WARNING: toxic to dogs and cats. The white-grey marbling is best maintained with bright direct light.
Watering too frequently in winter causing root rot.
Every 1–2 years in spring.
Balanced fertilizer at 50% monthly from March to September. No fertilization in winter.
Uses & Applications
Precautions / Toxicity
POTENTIALLY TOXIC. Although species-specific toxicity data for K. marmorata are limited, as a Kalanchoe genus member it may contain cardiotoxic secondary metabolites; caution around pets and children is advised.
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"K. marmorata is one of the few Kalanchoe species not native to Madagascar but to the African continent; a taxonomic revision published in Phytotaxa (2021) confirmed it as a morphologically distinctive species distributed across the Horn of Africa and Great Lakes region, suggesting an independent dispersal from the Madagascan common ancestor of the genus—making it a relevant subject for Crassulaceae biogeography."
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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.