How To Kill Clover In Flower Beds. A natural way to thwart clover is to deprive it of sunlight and oxygen. A physical barrier (called a mulch) will also help to prevent weed seeds from germinating.
A variety of propane torch tools are available that allow you to kill weeds by hitting them with very high heat. Adios, an organic weed killer, will weaken and kill the clover in your lawn without harming any of your grass.
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Also, you will be able to kill the clovers in just a few hours. Although the appearance of oxalis reminds people of clover, it is not related.