HOW MUCH DO I NEED? Your soil type and quality determine your nutritional needs. Suggested depths: New Flowerbeds and Vegetable Gardens: mix equal parts of compost with existing soil to a depth of 4 to 8 inches. Soil Amendment for existing beds: 3-6 inches of "Grow Up" compost. Mulch for existing beds or around trees and shrubs (instead of bark): 2-3 inches of "Grow Up" compost. By the bag: 1 cubic foot bag will cover a... •2 x 2 area, 3 inches deep. •1 x 2 area, 6 inches deep. •1 x 1 area, 12 inches deep. Use the compost calculator to roughly figure out the number of 1 cubic foot bags you will need: |