Name: Elaine Sarasota, Fl The one constant in life is change
I'm thinking the answer is "sometimes" Jane. I grew them in the Pac NW for years and they would continue making new flowers through the (cool, damp) summers, but when I tried to grow them in Utah, the hot, dry weather shut them down pretty quickly.
So if you have a cool, rainy summer they might keep going for you.
Elaine
"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill