It allows the free flow of water, air and nutrients through soil to plant roots while blocking sunlight and weeds. Superior drainage characteristics versus woven geotextile fabric. Nonwoven geotextile fabric is commonly used in landscape & garden planting beds to prevent weed growth, under patio or paver stones to allow water to drain and not pool or puddle, and to separate soils and stone in many ground-level and subsurface drainage applications.