This particular butterfly bush is actually growing in our garden here in Washington state... I know it's a bit confusing, because I just posted about Denmark... where I was born and raised, but I've lived in the US (mostly) since 1981.

Most varieties are smaller-- the one in our yard is almost a tree-- it's about 10 feet tall now. We live in a strange climate zone... 40 miles from "rainy Seattle" and 60 miles from "even rainier Forks" in what's known locally as "the blue hole" where it's mild and we get lots of sun. We also have a 50-foot eucalyptus tree and a couple of California redwoods.