No. When the Knit Fabric container is installed and filled with soil, the fabric is pressed firmly against the outside wall of the augered hole. When roots grow out and contact the fabric, they are guided into the surrounding soil with no opportunity to circle. However, if the soil is so heavy and/or the soil was moist enough to cause glazing of the sidewall of the hole, you should reconsider your planting procedures. By creating berms 6 to 8 inches high in the rows and installing the Knit Fabric containers in the center of the berms, drainage will be improved substantially. Remember, if oxygen is limited, root growth will be slow. If your soil is particularly subject to glazing of the sidewalls, you will likely benefit from growing a soil building crop such as sudex between crops and using the berm technique.
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