@constantina2000 You could be right. I never received any verification on the peony suggestion. Yet from my original picture it looks possible there's a peony-like flower as well as the foliage shape. We still work for that client so will revisit at peony flowering time if it's survived!
@alfiebin1 Hi, came across your post as I was looking for info on speckled stem peonies, this tweet is the only thing I could find - I think there's some growing in my garden, is this one and should I expect flowers soon?