Light
Bright, indirect
Ideal spot
Euphorbia trigona 'African Milk Tree' · Succulent
Bright, indirect
Ideal spot
every 1–2 weeks
In the growing season
Easy
Slow grower
Toxic
Cats & dogs
African Milk Tree (Euphorbia trigona 'African Milk Tree') belongs to the Euphorbiaceae family and is a easy houseplant to look after. This slow grower plant is happiest in bright, indirect and reaches 60–200 cm indoors.
For watering, the rule is simple: drought-tolerant. In the growing season it needs water roughly every 14 days, dropping to every 28 days in winter. Use the watering calculator below to tune that rhythm to your pot size, light and household humidity.
Important: African Milk Tree is toxic to pets — keep it out of reach of cats, dogs and children.
Set your pot size, light and humidity — the calculator tunes the watering rhythm to your home.
Light at the spot
Humidity
Season
Water African Milk Tree
every 14 days
≈ every 1–2 weeks · 2.1× per month
Let the top 2–3 cm dry and finger-check before watering again.
African Milk Tree prefers bright, indirect but will cope with medium to bright. Harsh midday sun can scorch sensitive leaves, while too little light leads to leggy, sparse growth.
Keep African Milk Tree between 15–28 °C and aim for around 35% humidity (20% minimum). Below 5 °C it risks cold damage — keep it away from draughty windows and radiators.
15–28 °C
Not below 5 °C
35%
20% minimum
Drought-tolerant
Soil between waterings
Pot African Milk Tree in fast-draining cactus/succulent mix with extra grit. A drainage hole is essential — soggy, airless soil is the single most common way houseplants die.
Every Euphorbia bleeds a milky latex that badly irritates skin and eyes and is toxic if eaten — wear gloves and never rub your eyes after handling.
The best ways to propagate African Milk Tree are stem cuttings. Late spring and summer are ideal, when the plant is growing most actively.
Many cactus-like euphorbias evolved spines and fat stems independently of true cacti — a textbook example of convergent evolution.
In the growing season African Milk Tree needs watering every 1–2 weeks (about every 14 days in a 16 cm pot at medium light), and much less in winter — roughly every 28 days. Use the watering calculator above to get the exact interval for your conditions.
African Milk Tree thrives in bright, indirect. A spot near a bright window out of harsh midday sun is ideal; give it a little more light in winter.
African Milk Tree is toxic to pets. Every Euphorbia bleeds a milky latex that badly irritates skin and eyes and is toxic if eaten — wear gloves and never rub your eyes after handling.
The most common problem with African Milk Tree is root rot from overwatering. Check your watering and drainage first — most issues trace back to too much or too little water.
The best ways to propagate African Milk Tree are stem cuttings. Late spring and summer are ideal, when the plant is growing most actively.
Indoors African Milk Tree typically reaches 60–200 cm. With the right light and occasional repotting it stays compact and bushy.
Care data last verified on 15 June 2026.
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