If you have a spot with morning sun and shade mid-day through afternoon, the hydrangea would be happier. It would be best to wait until early fall to move it if possible. Uprooting a plant in the heat of summer will just send it into shock and perhaps kill the plant. Until it’s safe to move it, give the hydrangea a deep soaking every 2-3 days. Also, mulch around the base to conserve moisture.
Thanks for writing!