Clint - DD lived in Columbia for a while and your summer heat is brutal. Ugh. Maybe heat is the key to Brunnera failure as with some of the Heucheras. Are the current Brunneras developed in the NW like so many Heucheras?
Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize that we can't eat money. Cree proverb