Crown of Thorns Care Guide
Euphorbia milii
Also known as: Euphorbia Milii, Christ Plant
Watering
Summer
Every 14 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
Direct sunlight
South-facing window, full sun for 4+ hours
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
Snug pot with excellent drainage. Cactus/succulent mix. Handle with gloves - thorns and toxic sap.
Pot-size watering
The 14-21 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.
Good to Know
Blooms almost year-round. Very drought tolerant. Toxic milky sap.
Frequently asked
How often should I water Crown of Thorns?▾
Every 14 days in summer and every 21 days in winter is the reference range. The 14-21 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 Crown of Thorns need?▾
Direct sunlight. South-facing window, full sun for 4+ hours.
Is Crown of Thorns safe for pets and children?▾
Very toxic and dangerous if ingested. Keep well out of reach of cats, dogs, children.
What humidity does Crown of Thorns prefer?▾
20-40%. Thrives in dry air - no misting needed.
What soil and pot does Crown of Thorns need?▾
Snug pot with excellent drainage. Cactus/succulent mix. Handle with gloves - thorns and toxic sap. 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 Crown of Thorns beginner-friendly?▾
Yes - Crown of Thorns is a succulent well-suited to beginners.
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