Caudiciform tender succulent from Madagascar. Leaves are very firm and I'm guessing can go for several months without water with no leaf drop. Plants grow to 2 foot mounds over 7-20 years. Old plants may have a turnip-like caudex
Bright light and sandy soil. Grow well under artificial light. Flowers inconspicuous. I have 8 plants growing entirely under artificial light. Leaf patterns and shapes may vary greatly with growing conditions. Pictures are from eBay. Thailand has very active breeding programs, these may be hybrids.
NE Massachusetts (New England) USA zone 6 (5B to 6B)
gardens visited, photographs: www.flickr.com/photos/wildmeadow
There are a lot of very beautiful Euphorbia species, and this is right up there with the nicest. I haven't seen one with wide leaves like the last one before, but there are a number of natural variants in leaf shape, pattern and colour. I haven't grown this myself, but have admired it for years.
west central alberta, canada; just under 1000m; record temps:min -45C/-49F;max 34C/93F; http://picasaweb.google.ca/cactuscactus http://urbanehillbillycanada.blogspot.com/