The second step in getting your garden ready for the growing season is to prepare the soil. Wait until your soil is dry, then till the garden areas 8 to 12 inches deep, removing rocks and other debris; mix in organic matter such as compost or manure to nourish it. Many kitchen by-products can help nourish your garden, too, says Beekman 1802. Coffee grounds, for example, are full of nitrogen, which in aids plant growth, and eggshells can prevent root rot. Leftover cooking water (at room temperature, of course) adds nutrients, and a spritz of chamomile tea will ward off funguses produced by moist spring weather.