Thanks..it's been that way for quite a while. I was wondering if you needed some kind of nutrient or something

Lacecaps blooms consist mostly of fertile flowers -the ones in the middle- and once pollinated, these will fade and "disappear" as you see starting to happen in the picture. The sepals that grow iaround the sterile flowers are sterile and are believed to attract pollinators. Some hydrangeas will "turn" the sepals upside down once the fertile flowers are pollinated.

thanks.i think I was concerned because the plant wasn't blooming like a Mophead which I also have :)

I agree with both Luis and hc mcdole about the flowers, but looking at the leaves in the background, the plant looks a bit stressed. You might also want to keep a close eye on the plant's growing conditions, maintaining even moisture (but not soggy) and keeping the plant out of the sun in the hottest part of the day.

thank you. what about feeding it?

It is kind of late to be feeding it fertilizers (I am assuming it is planted in the ground, not in a pot). You do not want the nitrogen to keep the plant in grow mode as Fall approaches. Give it 1/2 to 1 cup of cottonseed meal or composted manure in Spring.

thanks you. next question is about pruning but I know it's too early. I hesitate to prune because a few years ago, the plant was overpruned and didn't bloom for a couple of years