Euphorbia Abdelkuri Gray Cluster Care and Potting Instructions: Soil: Use a pot with a drainage hole and fill it with a cactus/succulent potting mix. The type of soil that E. Abdelkuri needs is a well-draining and porous mix. It has to drain very quickly, so it doesnt hold onto too much moisture, and it should dry out within a day or two. Water: In spring and summer water weekly, in autumn and winter water every three to four weeks. Only water the plant when the soil is completely dry, or else it can become waterlogged and begin to rot. Fertilizer: Use a fertilizer formulated specifically for cacti and succulents, once a month, during the spring and summer only.