A plant support system includes a support ring having at least one wall portion, and at least one support beam coupled to the at least one wall portion and configured to increase rigidity of the at least one wall portion. Further, the plant support system also includes a base coupled to the at least one wall portion and having at least one stationary clamping surface; a clamp spine having a movable clamping surface situated opposite the at least one stationary clamping surface; and a plurality of spring leaves coupled to the clamp spine and configured to bias the clamp spine.