Help. I received my first ever hydrangea 2 weeks ago as a birthday gift and I think I've killed it. I re-potted it the day after I received it (it had one bloom growing) and a few days later, I had about 4-5 blooms appearing. I was so happy! I live in VA and it's very hot here right now, so I put it in the best (and most shaded place) I could think of (morning sun, afternoon shade) and watered it regularly (once a day in the evening when it had wilted a little from the sun). It would perk right back up come morning and continued to grow. After a week, it was wilting even more.
A couple of days ago (making it almost 3 weeks of owning the plant), it looked like (and still looks like) dried spinach and dead. HELP ME. We had a large storm last week, which I think may have flooded the hydrangea. Could it have root rot? Should I leave it alone? Re-pot it again? Call it quits and go buy a new one? The pictures below are only 1 week apart.