Is your hydrangea not blooming? Pros reveal the 5 reasons why, plus how to fix them

Three pictures of hydrangeas blooming - a cluster of green and blue hydrangeas with sunlight shining on them, pink, blue and purple hydrangeas in the middle, and a blue watering can watering purple hydrangeas.

You don't need to worry just yet if you're peering into your backyard and can't see your hydrangea blooming.

I've asked gardening experts why it might be failing, and they all agree there are five possible problems. From poor sunlight to weak watering, they're all easy mistakes to make — but are thankfully quick to fix.