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RN-CRA-00009
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DocumentedCommonly cultivated

Crassula pellucida L.

Trailing Crassula

Crassula pellucida is a small trailing and climbing succulent native across a wide range in southern Africa, from the Cape to Zimbabwe and Mozambique. Its specific epithet (pellucida = transparent, translucent) refers to the young leaves, which appear somewhat translucent when viewed against the light. It is cultivated mainly as a hanging and ground-cover plant indoors and in shaded garden areas. The variety 'Marginalis Variegata' with leaves marked in cream and pink is especially popular in horticulture.

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Crassula pellucida L.

© Krzysztof Ziarnek, Kenraiz

CC BY-SA 4.0

height
Height
5–20 cm tall (spreads 30–60 cm trailing)
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Watering frequency
Every 10–14 days in summer; every 21 days in winter
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Sun hours
2–5 hours (tolerates partial shade)
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Temperature
5 °C to 32 °C
Family
Crassulaceae
Genus
Crassula
Conservation Status
Least Concern
Growth Habit
Trailing-climbing succulent

Overview

CategoryClassification
FamilyCrassulaceae
GenusCrassula
Growth HabitTrailing-climbing succulent
Conservation StatusLeast Concern
pH Target6.0 – 7.0
TypeLoamy, well drained, with moderate organic matter content

Origin & Habitat

Native Region
África oriental y meridional: Kenia, Tanzania, Angola hasta Sudáfrica, Mozambique, Zimbabue y Esuatini
Ecosystem
Forest margins, shaded rocky slopes, riverbanks, and coastal subtropical thickets

Morphology

Leaves

Ovate to circular leaves, 0.8–2.5 cm long, fleshy but thinner than other crassulas, medium to dark green with purplish or reddish tones under sun stress. The variety 'Marginalis Variegata' features green leaves with very ornamental cream, pink, and red margins and patches.

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Stem

Thin stems, 1–3 mm in diameter, very flexible, trailing or hanging, easily rooting at nodes when in contact with substrate. They form dense carpets on the ground or showy cascades in hanging pots, extending up to 30–60 cm.

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Flowers

Small, white to very pale pink flowers, 3–5 mm long, grouped in terminal or axillary corymbs. Flowering is abundant in spring-summer and the flowers, though small, are numerous and decorative against the dark green leaf background.

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Roots

Very shallow root system with adventitious roots at each node of trailing stems. This node-rooting capacity facilitates vegetative propagation and the formation of dense ground-covering mats under favourable conditions.

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Requirements

Light
More shade-tolerant than most crassulas. Can be grown in bright indirect light or even low light, though bright light or gentle morning sun is preferred for showier colour and more abundant flowering. The 'Marginalis Variegata' variety requires more light to maintain variegation.
Watering
More moisture-tolerant than shrubby crassulas, especially in partial shade conditions. Water when the top 2 cm of substrate is dry. Indoors in partial shade, may require watering every 10–14 days in summer and every 21 days in winter.
Temperature
Tolerates from 5 °C to 32 °C. Does not withstand frost. Indoors it thrives between 15 °C and 25 °C year-round. Sensitive to cold draughts.
Soil
Well-draining succulent substrate but with slightly more organic matter than for desert crassulas. A mix of general-purpose compost, perlite, and cactus substrate in 2:1:1 ratio works very well.
Recommended Substrate

Soil & Substrate

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pH Target 6.0 – 7.0

Type

Loamy, well drained, with moderate organic matter content

groups Beneficial Associations

TradescantiaPeperomiaFittoniaSedum hispanicumPilea
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Propagation Strategy

Stem cuttings Easy
Season: Year-round Rooting: 2–3 weeks
Success Rate 80–85%
  1. 1 Cut a trailing/hanging stem segment 6–10 cm long with sterilised scissors.
  2. 2 Remove the small basal pair of leaves.
  3. 3 Allow to cure for 2–3 days; C. pellucida's trailing stems root very quickly.
  4. 4 Plant in cactus mix or place several cuttings together in a pot for a dense mound effect.
  5. 5 Water lightly and keep in bright indirect light; leaves with red undersides benefit from some direct light.
Division Easy
Season: Spring Rooting: Immediate
Success Rate 90%
  1. 1 Remove the plant from its pot; C. pellucida forms dense mats with rooted trailing stems.
  2. 2 Separate sections with roots using fingers.
  3. 3 Plant directly into new pots with cactus mix.
  4. 4 Water and place in a bright location.
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Key Tip

The trailing stems with small leaves and red undersides are very attractive in hanging pots; the stems hang naturally and reach 20–30 cm in length.

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Common Mistake

Leaving the substrate dry for weeks as with other Crassula; C. pellucida needs slightly more frequent watering.

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Repotting

Repot every 1–2 years as it grows and spreads quickly. Choose shallow hanging pots that enhance the trailing effect.

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Fertilizer

Fertilise once a month in spring and summer with liquid succulent fertiliser at 50% dose. Reduce to half in autumn; no fertilisation in winter.

Uses & Applications

Uses
Indoor hanging plantGround cover in shaded gardensTerrariumsMixed planters with other succulents
Parts Used
LeavesStem
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Precautions / Toxicity

Toxicity not definitively documented; caution recommended with pets. Low toxicity for humans.

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science

"Crassula pellucida is notable for having one of the widest distribution ranges in the genus, spanning from semi-arid fynbos habitats in the Cape to humid subtropical riparian forests in Mozambique, making it one of the most ecologically plastic examples of adaptation within Crassula."

Researcher Notes — RN-CRA-00009
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Scientific Integrity

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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.