Grass is growing through the philox in my flower garden, is there a product to kill grass and safe on Philox ?

There are numerous weed killers on the market that will kill the grass but they will also kill your plants. When applying you have to be extremely careful not to get it on the plants. This includes spray caught in the wind. If you must use this, do it on a dead calm day.

The best solution is to lay a black permeable membrane and cut cross shapes in it for the plants that you want to plant. This is probably too late in the year to do this now without removing your plants but it will work next year.
Grass is growing through the philox in my flower garden, is there a product to kill grass and safe on Philox ?
A granular weed killer. Somehow it knows what is weed and what is not. Just sprinkle it in there and water it in.