Herbaceous Supports (1 ring 8mm)These slimline one ring supports are ideal for containing small herbaceous plants such as sedums and small asters. Use them to contain catmints or others that have a tendency to flop, or small clumps that need support at the base to keep their stems upright. The medium and large supports protect thicker stems like cirsium from being blown about by wind and rain. Buy two 8mm 1 ring supports and save 10%