Raised beds rarely exceed 4x8 feet, although large subterranean gardens may require the use of a rotary tiller. Using a rototiller in such a small space is inconvenient and can damage the sides of your garden bed. Instead, work the garden by hand, using a shovel or fork to mix fresh compost and amendments into the existing soil. The garden is planted in spring, and another no-dig method can be used in fall.
Soil filling in spring
1. Before handling compost or soil, put on shoes or boots, long pants, long sleeves, gloves, goggles, and a dust mask.
2. Remove dead vegetation from raised beds, shoveling as needed.
3. Add 2 inches of compost and rake it evenly over the soil.
4. Turn the soil with a shovel or fork to mix the soil and compost to a depth of 6 to 8 inches.
5. Spread the slow-release fertilizer evenly over the soil at a rate of 1 1/2 tablespoons per square foot. Rake fertilizer into the soil and water thoroughly before adding seeds or transplants to garden beds.
Autumn no-digging method
1. Wear safety gear before digging and using compost in the garden.
2. Alternately cover the soil with 1 to 2 inches of manure, green compost, and brown compost, raking each layer before adding the next layer. Completely fill the raised bed.
3. Spray the soil and compost ingredients with water to moisten the entire compost pile.
4. If heavy rain is expected, cover the raised bed with a clear plastic sheet or tarp. Use bricks or stones to weigh the plastic.
5. Let the compost layer decompose over the winter. Sprinkle with water now and then to keep the decomposing ingredients moist.
6. In the spring, remove any plastic sheeting or tarps from the raised bed, rake the compost, and plant the plants in the garden.
