Soil Amendments Midwestern BioAg. Effects of lime application on nitrogen and phosphorus. Holloway Ag offers agricultural gypsum for sale to California's. I do organic gardening and regularly add natural soil amendments based. You may sweeten acidic soil with two types of agricultural limestone. Gardenias do best when planted in well-drained organically amended soil away. Soil Amendments for Healthier Soils ECHOcommunityorg. Many gardeners turn to lime's lawn-restoring properties when their turf grass loses its vigor and weeds start to take over Although lime is not a weed killer putting it on your lawn can help discourage weeds as part of a rejuvenation project and encourage the lush full growth you're looking for. Tip Lower soil acidity can help increase vegetable production in the garden and enhance the. Using Limestone for Gardens & Soil How Much to Use on. Jobe's Organics Garden Lime Ideal for increasing soil pH Low pH can cause poor fertilizer response poor soil structure and weak turf Most plants. The Use of Gypsum and Lime on Lawns and Gardens.