Crown of Thorns
Euphorbia milii
Family: Euphorbiaceae
Crown of Thorns grows in full sun to bright indirect light and prefers gritty fast-draining soil. Water needs: Low.
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How to Grow Crown of Thorns
Crown of Thorns growing information includes sunlight requirements of Full sun to bright indirect light, soil conditions listed as Gritty fast-draining soil with a soil pH of 6.0-7.5, and Low water needs. The listed hardiness zones are 9-11. For propagation reference, the database lists germination or establishment information for Crown of Thorns as 14-45 days, with planting or establishment depth listed as 1/8 inch. Days to maturity are listed as 2-4 years.
Plant Overview
Crown of Thorns (Euphorbia milii) is listed in the Euphorbiaceae family and categorized as a succulent shrub with a perennial life cycle. This profile summarizes growing information for hardiness, light, soil, water, seed starting, maturity, and other available cultivation details. Difficulty is listed as Easy.
- Plant ID
- PLT-1203
- Family
- Euphorbiaceae
- Plant type
- Succulent shrub
- Life cycle
- Perennial
- Difficulty
- Easy
Growing Conditions
Crown of Thorns is listed for full sun to bright indirect light conditions. Water needs are listed as low. The database soil reference is Gritty fast-draining soil. The listed soil pH range is 6.0-7.5, and the listed hardiness range is 9-11.
- Hardiness zones
- 9-11
- Sunlight
- Full sun to bright indirect light
- Soil
- Gritty fast-draining soil
- Soil pH
- 6.0-7.5
- Water needs
- Low
Seed & Germination
For seed starting, the listed germination time is 14-45 days and the seed depth is 1/8 inch. The listed time to maturity is 2-4 years. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.
- Germination
- 14-45 days
- Seed depth
- 1/8 inch
Harvest & Propagation
- Days to maturity
- 2-4 years
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Growing Reference Note
Plant performance can vary with climate, soil, weather, cultivar, seed quality, and gardening methods. The values on this page are general database reference ranges rather than a substitute for local extension guidance or seed-packet instructions.