Black plastic sheeting for gardens works by blocking sunlight from reaching the soil surface, which helps prevent weed growth effectively. When you lay black plastic sheeting over your garden beds, it traps heat and creates a barrier that suppresses weeds without the need for chemicals. This warming effect can also boost soil temperature, encouraging faster germination of certain crops. Additionally, the sheeting conserves soil moisture by reducing evaporation. Gardeners often use black plastic sheeting for gardens in vegetable plots, raised beds, and around fruit trees to maintain tidy, productive spaces while saving time and effort on weeding and watering.