Hi, I'm just starting to browse through this thread and envying the Euphorbia species you can grow in warmer zones! I'll dig up some photos of ones I've found to be hardy in zone 3 - more than one would guess, but nothing like you can grow!
Just thought I'd mention that it is a REALLY REALLY good idea to wear gloves when handling euphorbias! The sap (latex) from Euphorbia contains a very strong chemical irritant! (NB. Latex from other plants has been used to make latex products, though not normally from Euphorbia. It has apparently been used in folk remedies... wonder if the cure wasn't worse than the sickness?) I don't normally wear gloves for gardening, and I have no allergies at all, but I learned to wear gloves for handling euphorbias! It burns the skin. Most serious was when I apparently got a little sap on my hands, then transferred it to my jaw/chin by rubbing my face and had a red rash and blisters for some time. Nasty stuff!
http://answers.yahoo.com/quest...
