What kills all weeds but not grass?

To kill weeds without harming your lawn, you need a selective herbicide formulated for your grass type. These products are designed to target broadleaf weeds like dandelions, chickweed, and plantain while leaving healthy turfgrass unharmed when applied as directed. Many lawn services use blends that control a wide range of common Oklahoma weeds but are safe on established fescue or Bermuda lawns. Timing matters: spraying when weeds are young and actively growing delivers better results and reduces the number of repeat applications. Always follow label instructions and avoid using non-selective killers like straight glyphosate in the lawn, as those will damage or kill grass right along with the weeds.