Euphorbia Japonica Cactus Cacti Succulent Real Live Plant in a 4" Pot. This is a dwarf interesting hybrid involving Euphorbia susannae and Euphorbia bupleurifolia, pretty easy to grow. (Common names are pineapple and cocklebur) It has a thickened root merging into a short caudex partly underground with several ananas-like branches arising from the crown. It shows intermediate characteristic from both the parents. Minimum avg. temperature: 50 F/ 10 C. Sun exposure: Light shade. Origin: Garden origin (hybrid), but quite common in cultivation. Growth habits: Spherical 2-5 cm long and 4 cm in diameter / small, slow-growing. Watering needs: It needs constant moisture during the Summer, but it doesn't like winter water, as it rots easily.