Hans, It could be the sun, but it could also be over watering. Have you unpotted it to look at the roots? I'd check on the roots to see if you see signs of root rot. If not, probably keeping it in bright shade would be advisable. Denise in Omaha

After looking at the other pictures of your collection, I can see the Euphorb in the middle well enough to suggest E. meloformis as a name. The small green clumper to the right of the polygona is Euphorbia susannae, but you didn't ask about that one. ;)

Thanks Marie and Tom. Tom, yes, but they didn't know what they had. They had labeled it as Euphorbia 'Prolifera', I don't know where they came up with that name. I even explained to the owner it was mislabeled quite a while ago. He said he would look into it, but never did. Christopher

E. Knuthii had branches that use to look like this early season .... but now they look like this.. Moving right along( sort of slowly) E. Larkspinsis is making freasher arm progress by cutting 3 -4 of the lankier droopy arms per season While talking about some do overs here is an E. greenyii that was nearly drowning when adopted. I'll admit it this one is kind of small for a E. lactea creasted variegate You ought to see the mother that this had been plucked from while admitting I am kind of hoarding that one. You've seen this one before on your thread from others as it finally gets some colors. And why is there a seniceo on a Euphorbia thread Well... as you did ask for a succulent and..... technically Euphorbia are a spurge.. A bit of show and tell from you too perhaps ? How are yours doing ?