I've never seen butterfly bush leaves that looked like that, so I can't help you. Hopefully, somebody else can! Sherry

Isn't N Globosa the "real" name for N Viking? If so, I've been eying Sunbelle Exotics (http://www.sunbelleexotics.com/) for one. I've tried emailing them once and never heard a word from them back. They have a very nice selection of Vikings.

Not to shabby for a globosa, they can be a bit tricky at times more so when things start going badly for them they go badly quickly from good to ouch in a few hours to a day or two For this reason I don't push any of my Euphorbias to quickly. In my experiance repotting them is about the same as moving the repotted to a new corner of the world in a different zone. My opinion, it could last a couple more years in the pot it's in now. I would let it finish flowering as it is now and not be watering with a higher volume of water. For me in a different colder zone than yours & with most of my Euphorbias inside I'd rather mist sides of pot and soil line more frequently than to water it heavily once. Watering and added light would be a trigger for it to grow and may be why it has streched. It may have been to much water by volume to it's new location. I can't be certain as to how it burnt on a top piece but it could be a sign of rot. Keep an eye on it with less water, better to loose a little than alot.

Yes that looks like it! I remembered there was a weeping one but only alternifolia came up when I looked for it and it’s obviously not that. Thanks so much for the specification.