Hydrangeas are understory trees that prefer morning sun and afternoon shade. If they get too much sun here in the summer months, the leaves in direct contact with the sun get scorched. However, the summer sun here is not as strong as it is in the northern half of the country so my MIL in MASS had a Nikko Blue on the western side of her home with no problems. It is possible that with enough moisture, your shrub can do well either on the original or the alternate locations.

Why do you not try the current location and transplant it if it turns out to be too much? Just remember to keep the soil moist, well mulched and to check the leaves several times a week. When I gave one hydrangea too much sun, the leaves in contact with the sun turned all yellow including the leaf veins.

I would investigate where people are putting similar hydrangeas to give you an idea. You can also look at city gardens and such. But regardless which location you try, you will not be the only person that has had to transplant a hydrangea because the original location did not work out when hot temps in July-August arrive or because it got too big or something else.

Luis

Thanks a lot for the advice. I Will keep an eye on them. I was just hoping some one will tell me it's going to be fine so that I don't have to relocate them..lol.. But I guess laziness isn't the answer when it comes to gardening. :D