Kalanchoe tomentosa Baker
Panda Plant / Rabbit Ears / Felt Plant
Kalanchoe tomentosa is a semi-perennial succulent shrub native to east-central Madagascar, highly prized as a houseplant for its fleshy leaves densely clothed in silvery felt with characteristic chocolate-brown markings at the margins and apex. The specific epithet tomentosa refers directly to the tomentose indumentum that covers its leaves.
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Overview
| Category | Classification |
|---|---|
| Family | Crassulaceae |
| Genus | Kalanchoe |
| Growth Habit | Erect succulent shrub with basally woody stems; slow to moderate growth. |
| Conservation Status | No IUCN threat category; widely cultivated, not invasive. |
| pH Target | 6.0 – 7.0 |
| Type | Sandy, very well-drained, low organic matter; avoid moisture-retentive substrates. |
Origin & Habitat
Morphology
Oblong to spatulate leaves 3–9 cm long, covered by a dense layer of silvery stellate trichomes that protect the plant from excessive heat and water loss; the margins bear symmetrically distributed rust-brown spots, and the apex is often marked by a more pronounced dark patch.
ecoRobust, erect stems with lateral branches, progressively woody at the base; leaf scars are prominent and texture the mature stem; mature height 30–90 cm.
ecoSmall, tubular flowers, green-yellowish to brownish-purple, in clusters at the end of long peduncles; the plant rarely blooms in cultivation and is appreciated primarily for its foliage.
ecoFibrous, shallow root system adapted to porous substrates; sensitive to excess moisture, which causes root rot.
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Requirements
Soil & Substrate
Type
Sandy, very well-drained, low organic matter; avoid moisture-retentive substrates.
groups Beneficial Associations
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Propagation Strategy
- 1 Cut a 6–8 cm stem with clean scissors, avoiding wetting the cut.
- 2 Remove lower leaves carefully — do NOT strip excessively to avoid damaging the tomentum.
- 3 Callus for 2–3 days in a dry spot; the tomentum protects but retains moisture.
- 4 Plant in well-draining mix (cactus substrate + perlite 1:1).
- 5 Rooting in 3–5 weeks; do not overwater.
- 1 Remove a mature leaf with the base intact; handle carefully to avoid crushing the tomentum.
- 2 Callus for 3–5 days lying horizontally.
- 3 Rest the leaf base on lightly moist mineral substrate.
- 4 Maintain at 22–26 °C with indirect light; mist very lightly.
- 5 Plantlet visible in 6–10 weeks.
WARNING: toxic to dogs and cats. The woolly tomentum is delicate; avoid watering directly onto the leaves.
Watering onto the tomentose leaves leaving permanent water marks or encouraging fungi.
Every 1–2 years in spring. Moderate-growing plant; a small pot keeps it compact.
Balanced fertilizer at 50% once a month from March to September. No fertilization in winter.
Uses & Applications
Precautions / Toxicity
TOXIC to dogs and cats if ingested; contains cardiac glycosides (bufadienolides) that can cause vomiting, diarrhea, and heart rhythm abnormalities. Keep away from pets and children.
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"The dense tomentose indumentum of K. tomentosa is a precision xerophytic adaptation: the dead trichomes with tannin deposits act as an insulating layer, reducing leaf temperature and transpiration rates by up to 40% under conditions of strong solar irradiation, according to ecophysiology studies of Madagascan succulents."
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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.