Plant Encyclopedia
African Milk Tree (Euphorbia trigona) plant care guide
beginnersucculent

African Milk Tree Care Guide

Euphorbia trigona

Also known as: Euphorbia, Cathedral Cactus

Watering

Summer

Every 17 days

Winter

Every 21 days

Let the top 2-3cm of soil dry out before watering. Stick your finger in - if it feels dry, water.

Light

Bright indirect

Near a window but no direct rays hitting the leaves

Humidity

20-40%

Thrives in dry air. No misting needed.

Pet & Child Safety

Very toxic - dangerous if ingested

Harmful to: cats, dogs, children

Pot & Soil

Prefers a snug, heavy pot for stability. Use cactus/succulent mix with extra perlite.

Pot-size watering

The 17-21 day range is a starting point. A 5cm pot dries quickly, but the soil should still reach its proper dry-down before watering. A 22cm pot can hold moisture deep inside even when the top looks dry.

Prefers snug roots

This plant usually prefers a snug root zone. Size up only when roots are circling, the plant dries out much faster than usual, or growth has clearly stalled.

Soil refresh

Refresh gritty mix when drainage slows, salts crust on the surface, or the potting mix collapses - usually every 18-24 months for stable plants.

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Good to Know

Not a cactus. Toxic milky sap.

Frequently asked

How often should I water African Milk Tree?

Every 17 days in summer and every 21 days in winter is the reference range. The 17-21 day range is a starting point. A 5cm pot dries quickly, but the soil should still reach its proper dry-down before watering. A 22cm pot can hold moisture deep inside even when the top looks dry. Let the top 2-3cm of soil dry out before watering. Stick your finger in - if it feels dry, water.

What light does African Milk Tree need?

Bright indirect. Near a window but no direct rays hitting the leaves.

Is African Milk Tree safe for pets and children?

Very toxic and dangerous if ingested. Keep well out of reach of cats, dogs, children.

What humidity does African Milk Tree prefer?

20-40%. Thrives in dry air - no misting needed.

What soil and pot does African Milk Tree need?

Prefers a snug, heavy pot for stability. Use cactus/succulent mix with extra perlite. This plant usually prefers a snug root zone. Size up only when roots are circling, the plant dries out much faster than usual, or growth has clearly stalled. Refresh gritty mix when drainage slows, salts crust on the surface, or the potting mix collapses - usually every 18-24 months for stable plants.

Is African Milk Tree beginner-friendly?

Yes - African Milk Tree is a succulent well-suited to beginners.

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