The Best Raised Garden Bed False Bottom References. So raised beds usually have nothing on top of or below them. Landscape fabric excels at blocking weeds but reduces drainage.

Web if you don’t have fillers available, another option is to create a false bottom in the raised bed. Web these include less weeds, more growing space, less soil erosion, better water retention than sandy soils, and better drainage than clay soils. Web what’s the best material for raised bed bottoms?