Jatropha podagrica: How to Care for the Bottle Plant Indoors

Jatropha podagrica looks as if an artist had invented it: a fat, bottle-shaped trunk, large lobed leaves on long stalks and bright coral flower clusters on tall stems. It is a succulent that stores water in its trunk, so it is easy to care for, as long as you do not overwater it and remember that its sap is toxic.

Unusual plants as gifts: potted plants.

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What kind of plant it is

The genus Jatropha belongs to the spurge family. The species usually grown indoors is Jatropha podagrica from Central America, named for its swollen, “gouty” base. Its relative Jatropha curcas is known as an oil crop whose seeds yield an industrial oil.

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Care at home

• Light. Bright, with some morning or evening sun; in summer it can go out on a balcony.
• Watering. Only once the soil has dried out completely; jatropha copes with drought far better than with wet soil.
• Soil. Open and free-draining: cactus and succulent mix.
• Temperature. 20–25 °C in summer, not below 12–15 °C in winter.
• Feeding. Once a month in spring and summer with cactus fertiliser.

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In winter

In autumn jatropha usually drops its leaves and goes dormant. This is normal: stop watering almost completely and keep the pot somewhere bright. In spring a flower stalk appears at the top of the trunk first, then new leaves; that is the time to resume watering gradually.

Safety

All parts of jatropha are poisonous, especially the seeds. The milky sap can irritate skin and eyes, so wear gloves when pruning or repotting and keep the plant away from children and pets. Other plants that need the same care are listed in “Houseplants toxic to pets and children”.

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Propagation

Jatropha is grown from seed. Ripe capsules burst and scatter the seeds, so cover them with a muslin bag. Sow in spring in a light, moist mix; seedlings grow slowly and develop the characteristic fat trunk with age.

Common problems

• A soft, wrinkled trunk usually means rot from overwatering.
• Stretched stalks and pale leaves mean too little light.
• Spider mites in warm, dry air: check the undersides of the leaves.

More on common care mistakes: “Houseplant care mistakes”.

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FAQ

Why did my jatropha drop all its leaves?

In autumn and winter it is natural dormancy. In summer it points to serious overwatering or a draught.

How often should I repot it?

Every 2–3 years in spring, into a shallow, wide pot with good drainage.

Author: Maria Svitlovir

Graduated from Taras Shevchenko National University of Kyiv, Institute of Biology and Medicine (2001). BSc in Biology, MSc in Horticulture. Writes about plants, works at a garden centre selecting and repotting plants, and contributes to plant reference guides.

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