The Big Bag Bed is manufactured out of a custom, non-woven, Geotextile material that research discovered has important and unique horticultural applications. As roots grow they soon reach the container walls. In hard sided, plastic containers, these roots immediately start circling and continue to circle. Examine a circling root structure and you find a few large roots growing in circles with very little side branching. These roots often bind or girdled upon themselves. Circling roots can never give optimum growth.