Pots are loaded onto the entry conveyor, and are automatically fed onto the cutter conveyor at the optimum spacing. They then pass under the cutter deck, where the pots are clamped, and the plants are trimmed by the cutter, which rotates around the foliage. The debris falls through to the underside of the machine, and the pot is delivered to the exit conveyor. The cutter curvature, height, and rotational speed are adjustable, and the potholder automatically adjusts for different sizes of pots. The automatic potholders accommodate pots from 9cm to 28cm diameter.