List Of Sterilizing Raised Garden Bed Ideas. Place a lid on the. Weeds can compete with your plants for vital nutrients and water, so it’s important to get rid of them before winter sets in.

That way, steam will get trapped and heat the soil so it kills all the pests and diseases inside. Test the soil’s ph and nutrient levels for customization. Use a fork or hand tool to blend the new soil into the old soil.