Euphorbia polygona is native to South Africa, It forms a ribbed chunky columnar plant of pale, almost white, grey-green. It has spiny protuberances ("peduncles", otherwise known as persistent flower stalks). The cultivar 'Snowflake' is a chalky white and has fewer spiny protuberances. Many new hybrids have been created using 'Snowflake' as it tends to pass on excellent genetics for attractive plants. All Euphorbias contain a white sap that can be irritating to eyes and mucous membranes. If contact is made with this white sap, take care to not touch face or eyes before washing hands with soap and water. Responds well to warmth, with its active growth period in the late spring and summer months. Porous soil with adequate drainage. Requires bright light for best appearance, and should be given a winter resting period at which time less water should be given. Protect from frost.