Cool thread!
I love Euphorbias but I haven't got many though.
I only had my luck with E. marginata- total disaster... a short season of "looking good" following with a whole spring of removing seedlings. NEVER AGAIN. It spread everywhere. Good thing I was right on it, while the seedlings were small.
E. lathyris is the other one. I prefer it. But it's kinda short lived!
Sometimes I see some Euphorbia in the woods with reddish leaves but I haven't seen a good-looking specimen... so I never bothered with it!
