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The Guardian - UK
The Guardian - UK
Lifestyle
Gynelle Leon

Houseplant of the week: potato plant

Potato plant, Stephania Erecta, caudex plant in ceramic pot

Why will I love it?
Native to Thailand and Laos, the Stephania erecta is a bulbous caudex (occasionally it is called the potato plant because of this), which acts as a water reserve during dry periods. Slender vines bear beautiful parasol-like leaves, and the plant is often used decoratively in south-east Asian food.

Light or shade?
This plant prefers bright, indirect light. It can handle some gentle morning sun, but should be kept away from harsh midday rays to prevent leaf scorch.

Where should I put it?
Given its trailing vines, let the plant spill down from a well-lit shelf facing east, or a north-facing window. Or enjoy its delicate leaves up close by placing on a desk or coffee table.

How do I keep it alive?
Water sparingly, allowing the top inch of soil to dry out between waterings. Reduce watering in the winter months when the plant becomes dormant. Stephania erecta can tolerate average room humidity but appreciate humidity of 50-75%, so mist frequently during the growing season. Plant in a well-draining cactus or succulent mix to prevent root rot. Keep room temperatures warm at 18-24C. Feed with a balanced fertiliser once a month during the growing season (spring and summer). Skip fertilising in winter.

Did you know?
The plant’s species name, erecta, refers to its upright growth, while Stephania derives from the Greek for crown, a nod to the crown-like shape of its tiny flowers.

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