No water should ever be allowed to stand around the roots. But young plant are happy growing indoors, eventually the plant grows into a freely-branching giant of 2m or more; it is then usually thrown away. The spines comes from a horny shields whereas in cacti the spines come always from "areoles" (felted cushions). Transplanting: Like quite small pots, repott in very later winter, early spring.Water requirements: Water regularly during the active growing season from March to September. The Euphorbia Trigona is not suitable for children or pets because the sap is poisonous and irritant. The type was said to be from India, but the probable origin is more likely to have been Angola. Royal Red the branches and leaves coloured more or less red.Flowers: The plant has never been known to flower.Similar species: Because of its cactus-like appearance, Euphorbia trigona is often mistaken for a cactus. Euphorbia trigona. L'euphorbe lui, a de grandes épines et à l'arrivée du printemps ou de l'été, il a des feuilles en forme de gouttes très allongées qui poussent. The latex is an additive to Periploca nigrescens Afzel. Strawberry Press, 1991, 8) Volker Buddensiek “Sukkulente Euphorbien” Ulmer, Stuttgart 19989) Jezek & Kunte “Enciclopedia delle piante grasse,” Vercelli, White Star, 2006 10) “Dictionary of Botanical Epithets” , Retrieved 03 January 2016, from