Companion planting involves strategically placing plants next to each other to benefit one another. In terms of weed control, certain plant combinations can help suppress weed growth naturally. For example, planting dense ground covers like clover or thyme between rows of vegetables can prevent weeds from taking root by shading the soil and outcompeting them for resources. Additionally, some plants release chemicals that inhibit weed seed germination or growth, acting as natural herbicides. By incorporating these beneficial plant pairings in garden beds, gardeners can reduce the need for manual weeding or chemical interventions.