Here: I have been growing hydrangeas in full sun for well over a decade now in the desert. They are some of my favorite plants to grow and remind me of my childhood on the East Coast. Hydrangeas have come a long way for those of us living in extreme temperatures. I grow in Utah: high desert zone 7A. Utah is experiencing a heat wave and I have a newly planted hedge of incrediball hydrangeas to keep happy. I noticed some subtle scorching, especially on this section which gets sun the entire day. M