How to kill grass and not flowers I have this area of my yard and unfortunately I did not lay down any pre-emergent. What can I spray or spread that will kill the grass but not my flowers? Also, next spring can I spread a pre-emergent to prevent the grass but won’t prevent the flowers from coming up? I used a weed wacker and while I was careful I still mutilated some flowers. Originally by u/MasonDS420 on Reddit: https://tinyurl.com/258ongap