The centuries-old German gardening technique of hugelkultur imitates forest growth, using rotting wood to supply green growth with water, nutrients, beneficial bacteria and fungi. Using hugelkultur practices in tubs, you can produce tasty winter greens. This simple approach fertilizes your plants, places quality bacteria and fungi in your container’s soil, and helps retain water for your growing greens.
The craft of hugelkultur gardening starts with a healthy mound of partially rotten wood about 40 inches wide by any length you wish, using large wood chunks with smaller branches to fill in spaces between the bigger pieces of wood. Compost, grass clippings, tree leaves and topsoil are added, resulting in a mound approaching five feet in height, with two slopes at roughly a 65 to 80 percent grade.
The decaying wood at the base of the hill releases nutrients for plants growing on top of these mounds. Heat also comes from the rotting process, boosting soil temperature. Half-rotten wood acts like a sponge, soaking up water, which is then accessed by your plants’ tap roots. The hill’s surface area gives gardeners three times the garden space on soil and requires no tilling.