Top is chives. Only the tubular leaves belong to it. The flat blades are grass.

You can cut down the dead stems on the Phlox. They're unsightly and of no use to the plant.

I see grass amongst the chives, but I also see leaves that look like something else...

Well, there’s a dandelion ....

First one looks like chives on the left and siberian iris to the right of it.

Yes - I was thinking 'iris like'.

the lavender bloom belongs to chives. This easily seeds itself and pops up all over.