African milk barrel care guide
Euphorbia horrida
Also known as: Kaiigyoku
Pets and children
Considered toxic
The white latex from a wound strongly irritates skin and eyes and causes mouth inflammation or vomiting if eaten; it is also spiny, so keep it out of reach and consult a veterinarian or doctor if swallowed.
How often to water African milk barrel
- Spring–Summer (Mar–Sep)
- Every 10 days
- A summer grower: as a guide, water well three or four days after the soil dries through, and a little less in the rainy season and midsummer.
- Autumn (Oct–Nov)
- Every 14 days
- Taper off as it cools, waiting about one to two weeks after the soil dries.
- Winter (Dec–Feb)
- Every month
- Nearly dry: about once a month, moisten lightly on a warm morning, as a guide.
Light and placement for African milk barrel
It wants strong light: outdoors in sun and moving air from spring to fall as a guide, which keeps the ribs tight and the spines stout; acclimate it over a week or two, and keep it out of rain.
Overwintering African milk barrel
Overwintering guide: 3°C (37°F) or above
Fairly cold-tolerant for a spurge when dry, but keep it above about 3°C: move it to a sunny room or a rain-sheltered spot as nights near 5°C, away from frost.
Fertilizing and repotting African milk barrel
Fertilizer
Feed lightly as a guide: a little slow-release at repotting, or diluted liquid feed about monthly in April to June and in September; too much makes soft growth and weak spines.
When to repot
Spring–Summer (Mar–Sep)
Common problems with African milk barrel
- Kept in dim indoor light, the top stretches thin and the shape is lost.
- Soil that stays wet in winter or long rains rots it from the base.
- Sudden strong sun scorches the skin and leaves brown scars.
Tips for growing African milk barrel
- Plant it in a fast-draining mix so the pot dries quickly.
- The spines are old flower stalks; leave them on rather than pulling them.
- Offsets at the base can be rooted in spring once the cut has dried.
These are AI-generated general guidelines. They vary with the variety, the placement and the pot size. For effects on pets or children, consult a veterinarian or a doctor.
Keep your plant log going
Greenery is a free app that keeps your plant care going, with watering reminders and photo records. Available on iOS and Android.
