How Often to Water a African Milk Tree

Euphorbia trigona · Difficulty: Very easy

Succulent & Cactus ☠️ Toxic to cats & dogs (milky sap is irritating to skin, mouth and eyes)
☀️ Summer / active growth Every 10-14 days
❄️ Winter / dormant Every 21-28 days
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Care Snapshot

LightBright light with several hours of direct sun
SoilWell-draining succulent or cactus mix
HumidityLow to average humidity is fine (below 40%)
Temperature18-27°C (65-80°F)
Pet Safety☠️ Toxic to cats & dogs (milky sap is irritating to skin, mouth and eyes)

Want a personalized schedule based on your pot size and light? Try the free watering calculator.

Signs of Overwatering

The angular, ridged stems turn soft, dark and mushy near the base when the roots have been sitting in wet soil.

Signs of Underwatering

The stems become noticeably thinner and slightly wrinkled, though this plant handles drought extremely well.

Adjusting for the Seasons

Growth is naturally slow and can pause almost entirely in winter, especially in a cooler, less bright spot - water sparingly during this rest period.

Pro Tip

Wear gloves when handling or pruning - despite looking like a cactus, this is actually a euphorbia, and its milky white sap is a genuine skin and eye irritant, unlike true cacti sap.

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