I have a Nikko Blue bigleaf hydrangea that's been in my front yard for 8 years now. It's been a pretty reliable plant all that time, and this year it was budding like crazy. I figured this week I'd have a bumper crop of beautiful blue flowers, but...now they're mostly all brown! There is some brown on the leaves, but it's mostly the flowers. We had a really hot week last week (I'm in Long Island, New York, and it went from the 60's/70's to the 90's all of a sudden) and my husband thought maybe it needed water - one day it definitely did, it was droopy, which is normal, so he watered it and it perked up, but it's still brown. Has anyone seen anything like this before? I know I never have!

Thanks!

Ally :)