Desert Jatropha (Jatropha macrorhiza)

Desert Jatropha

Jatropha macrorhiza

Succulent stems store water for desert survival, a tough beauty of arid lands. Deciduous succulent shrub; common name: desert jatropha.

Full sun
0–1/week
Moderate
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Plant Needs

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Sunlight Requires full, unfiltered sunlight; tolerates intense desert UV exposure without scorching
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Watering Water deeply only when soil is completely dry; avoid frequent light watering to prevent root rot
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Temperature Hardy to mild winter freezes; thrives in hot, arid conditions; avoid prolonged frost exposure
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Characteristics

  • Leaf: Palmate, 3–5 lobed, green to gray-green; deciduous during prolonged dry periods
  • Flower: Small, star-shaped, bright red to pink; clustered at stem tips
  • Stem: Thick, fleshy, grayish-brown; specialized for water storage during drought
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Care Guide

Watering

Water deeply once every 2–3 weeks; allow soil to dry fully between waterings

Fertilization

Diluted low-nitrogen feed once monthly. Only fertilize during active spring growth; avoid overfeeding to prevent succulent stem damage

Eggshell powder topdressing:Crush dried eggshells into fine powder; sprinkle 1–2 tbsp around the base of the plant; avoid direct contact with succulent stems
Pruning
  • Trim dead or damaged stems in early spring to stimulate new growth
  • Remove spent flower clusters to maintain a tidy, compact form
  • Thin overcrowded branches to improve airflow and light penetration
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; ingestion leads to vomiting, diarrhea, abdominal pain, and potential kidney irritation

Humans: Contains toxic phorbol esters; ingestion causes gastrointestinal distress; skin contact may trigger mild irritation

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental desert garden plant; limited traditional medicinal uses (restricted due to toxicity)