Help to ID plants

I need some help to ID plants. The first two are perennials; the third is a sort of grass growing on the lawn and the last one looks as a weed.

Anybody?

 

#1 Peony
#2 Phlox paniculata I believe

HTH
Chris

 

#3 looks like Rosemary, but the pic isn't clear enough to be 100% sure.

 

#3 resembles Moss phlox to me but as stated the picture not that clear.

 

Here is one more picture of the third plant: Now it has a flower! This may help to ID.

 

So it (#3) is moss phlox, Phlox subulata.

 

Yep, agree Phlox subulata, not Rosemary!