I have three mophead hydrangeas which get about an hour of sun per day and they do very well.

Thanks for that Jaykaty that was what I wanted to hear. I have just purchased one and the spot I wanted to put it gets about that amount of sunshine (when the sun shines).
:)

phloxie

They do, however, like a bit of moisture or they will wilt a lot.

Here in the desert, they do best with no direct sun, but we give them lots of indirect light.

Many thanks to both Volunteer and Tugbrethil for your advice on this matter.
Phloxie