Water
Allow the soil to dry out completely between waterings. Reduce watering significantly during the cooler winter months to prevent root rot.
Also known as Gerold’s Spurge · Queen Of Thorns · Thornless Crown Of Christ
Safety note: This plant may be toxic to humans and pets. See toxicity details.
At-a-glance light, water, soil, and growing conditions from plant data
Bright, indirect light is ideal. Can tolerate some direct sun.
80% intensity
Protect from intense afternoon sun.
Allow soil to dry out between waterings. Reduce in winter.
40% intensity
Well-draining cactus or succulent mix is essential. A gritty, sandy loam is ideal.
50% intensity
Prefers warm temperatures during the growing season. Can tolerate cooler temperatures in winter.
70% intensity
Avoid frost.
Outdoor, Greenhouse, Indoor
50% intensity
Feed with a diluted balanced fertilizer during the growing season.
30% intensity
Do not fertilize in fall or winter.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 5/5 intensity |
| Toxic for pets | Yes 5/5 intensity |
| Edible | No |
The sap is a skin and eye irritant and is toxic if ingested. Handle with care, avoiding contact with skin and eyes.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Allow the soil to dry out completely between waterings. Reduce watering significantly during the cooler winter months to prevent root rot.
Prune to maintain shape and remove dead or damaged stems. Wear gloves as the sap can be irritating. Pruning can be done anytime but is best after flowering.
Easily propagated from stem cuttings. Allow cuttings to callus for a few days before planting in well-draining soil. Water sparingly until roots form.
Repot every 2-3 years or when the plant outgrows its container. Use a well-draining succulent mix and a pot with drainage holes. Repot in spring.
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Photos of Euphorbia Geroldii (Euphorbia geroldii)
Common names and botanical synonyms
Botanical classification