Euphorbia polygona is a spiny, leafless succulent with many-angled stems that look like columnar cacti, native to dry parts of South Africa's Western and Eastern Cape. Grown as a species and as the waxy 'Snowflake' cultivar, it needs sharp drainage, bright light and little water.
Family
Euphorbiaceae (Spurge family)
Grows as
Succulent
Light
Full sun
Water
Water deeply but infrequently, letting the soil dry out fully between waterings, and water less in winter.
Soil
Fast-draining cactus or succulent mix with grit or sand.
Temperature
15–30 °C; protect below about 5 °C.
How easy
Easy
Safety
Mildly toxic: The milky sap can cause skin irritation and itching, and can permanently damage the eyes if it gets into them.
Native range
SC. & S. Cape Prov.
Climate
desert or dry shrubland
About
Euphorbia polygona, the many-angled cactus euphorbia, is a plant in the spurge family native to dry areas of South Africa.
How to grow it
Many-angled cactus euphorbia has a long history of cultivation outside its native habitat, with the first records of it being grown in Europe dating from 1790. They are also grown in Karoo gardens and containers in their native South Africa.
Succulent euphorbias are readily propagated in cultivation from cuttings that are allowed to heal for 14 days before being planted into moist sand to root. Plants are also grown from seed planted in well drained soil with germination occurring after three to four weeks in warm conditions.
Where it grows
Euphorbia polygona is endemic to the country of South Africa where it is found in the Western and Eastern Cape provinces. There is grows from areas near Uniondale in the eastern part of the Western Cape in the
Text excerpted from the Wikipedia article Euphorbia polygona by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.