Name: Sandy B. Ford River Twp, Michigan UP (Zone 4b) (Zone 4b-maybe 5a)
Maybe it just doesn't like that much heat? It grows like crazy for me and self sows to the point of almost being a weed... and I never realized how much it looks like the "Little Shop of Horrors" plant until I was trying to photograph bees in it!
“Think occasionally of the suffering of which you spare yourself the sight." ~ Albert Schweitzer C/F temp conversion