Should you put preen down before mulch?
Hereof, do you put preen down before mulch?
Should Preen® Garden Weed Preventer be applied before the mulch is applied (directly on the soil) or on top of mulch? For best weed prevention, we recommend Preen® Garden Weed Preventer be applied to the weed free soil, watered lightly, and then covered with 2 - 3 inches of mulch.
Simply so, what is the best thing to put under mulch to prevent weeds?
Natural mulches also help prevent soil erosion, conserve water in soils and "feed" soil by releasing nutrients through steady decay. Some gardeners use thick layers of cardboard or newspaper mulch beneath other organic mulches to more effectively beat weeds and also build their soil.
Made with 100 percent corn gluten, this natural pre-emergent herbicide not only keeps weeds out of the vegetable garden, it also is effective in beds of annuals and perennials and around trees and shrubs.