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Too much clover in your lawn can indicate several issues with your soil. Clover can thrive in soils with abnormally high pH, low-cut grass, and low nitrogen. Amending these issues can push clover out for good.

Hardy perennial clover loves the low nitrogen and compact conditions that often come with poor, infertile soils. But other factors also contribute to a clover explosion, including drought conditions, cool temperatures, under fertilization, and over-irrigation. You’ll need to evaluate all these elements when planning to kill off the clover.

Herbicides containing a combination of the active chemical ingredients dicamba, fluroxpyr, and quinclorac are most effective at purging your turf of white clover. However, for small home lawns, organic prevention and control can be very effective methods for killing clover weeds and save you from using harmful pesticides that might damage your lawn.

Purchase a selective herbicide that targets clover and similar weeds but doesn't take out your grass. You can also keep it from growing with corn meal gluten or remove clover from your lawn manually at the start of the season as part of your lawn maintenance checklist.

There are organic herbicide options that will kill grass but not flowers, including white vinegar or a dish soap solution. Commercial selective herbicides can also target grass over other plants, but read the instructions carefully to avoid damaging your garden. Herbicides that kill grass but not flowers usually include ingredients like clethodim and sethoxydim. Otherwise, your best bet will be to weed by hand.