to garden.org. We do need to know your location to advise you better.
Your plant looks like it has all nice new growth there. Did you prune it back this spring? If so you probably pruned off the growth from last summer that would have bloomed this year.
Rule of thumb with most hydrangeas is to just cut off spent flowers in the fall, and if you need to prune to keep it down to size, take out the oldest stems right at the base but don't cut off any summer growth if you can help it, because that's where next year's flowers will be.
