Light
Full sun / direct • approx. 40,000–80,000 lux



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Quick Care Guide
Light
Full sun / direct • approx. 40,000–80,000 lux
Watering
Water when ~90–100% dry
Substrate
Gritty • Ultra fast-draining • Mineral-heavy • Fine-medium
Temperature
Ideal: 18–30 °C • Avoid below: 10 °C
Humidity
Normal 40–50 %
Growth habit
Upright succulent shrub or tree.
Support
not needed
Growth speed
High
Max size indoors
Max. height: 200 cm • Max. spread: 100 cm
Toxicity & safety
Toxic
Origin & habitat
Native from Gabon to Malawi
Outdoor growing
Outside from 12 °C · sheltered spot
These care values are quick reference points for indoor growing. Use them as a guide, then adjust for pot size, substrate, temperature and how quickly the substrate dries.
For more detail, read the full product description or visit our Plant Care Guides.
Euphorbia trigona is a tall, branching succulent Euphorbia with three-angled green stems, small paired spines and short-lived leaves along the ridges. Young plants usually grow from a main upright stem, then branch over time into a taller plant with ribbed, angular side stems.
The fleshy green stems store water and carry out most of the plant’s photosynthesis. In a container, Euphorbia trigona can become tall and top-heavy, so it needs bright light, careful watering and a stable pot as the stems lengthen and branch.
Euphorbia trigona is native from Gabon to Malawi. It grows as a succulent shrub or small tree in seasonally dry tropical conditions, where water-storing stems help it bridge dry periods.
Indoors, water thoroughly and then let the substrate dry well. The roots stay healthier in a fast-draining mix with air around the root zone, while strong light keeps new stem sections firmer and less stretched.
Euphorbia trigona produces irritating white latex sap and is toxic if ingested. Keep it away from pets and children, avoid sap contact with skin and eyes, and wear gloves when cutting or handling damaged stems. Rinse eyes immediately and seek medical advice if sap gets into the eyes.
Euphorbia trigona Mill. was published in Gardener’s Dictionary, ed. 8: n. 3 in 1768. The genus name Euphorbia is traditionally linked to Euphorbus, physician to King Juba II of Mauretania. The species epithet trigona means three-angled or triangular, referring to the plant’s three-sided stems.
Euphorbia trigona grows into tall green three-angled stems with small paired spines and upright branching growth.
Plant names, growth habits, natural habitats and indoor care guidance are checked against trusted botanical, habitat and horticultural references before publication.View our plant care resources and references.