I am in Southern Missouri and I have had success with these hydrangeas. I have them planted all over our landscape in both sun and shade. We are also on a knoll on our farm and we have lost three oakleafs where they were blasted by the cold winter winds. I think if I were to replant them in their former location the surrounding shrubs would offer them some winter wind protection. With the enormous amounts of rain we have received this year they are in their full glory and I am wondering where else I could tuck them into my landscape! My goal with my flowers was to have enough in bloom that my three children could pick flowers at any time and there would still be some left to enjoy outside! Since two of my three have already gone off to college in far away places my youngest has an endless supply of flowers to choose from. She was the one that especially loved hydrangeas since they were the one flower vase filler! Even without the need for flowers for my children to pick, I still have a need to see them inside and out and with all the hybridization going on in the hydrangea world I am one happy flower gardener!
I have had no trouble with my Oakleafs--they take care of themselves with no interference from me. However, one warning: I bought a variety advertised as a "miniature" growing 3-4 ft high for a restricted space in light shade. It is now 5 ft high and 6 ft wide and has completely taken over that bed. Not a thug since it still looks fine, but a cautionary example of how to take advertiser's claims with a grain of salt.