An indoor gardening appliance includes a liner defining a grow chamber and a grow module rotatably mounted within the grow chamber for receiving a plurality of plant pods, the grow module defining a plurality of grow chambers spaced apart along the circumferential direction. One or more resilient sealing elements, e.g., formed from silicone, are positioned at the distal ends of the grow module to seal a gap between the grow module and the liner. The resilient sealing elements define one or more air ducts for providing a flow of air through the resilient sealing element into one of the plurality of chambers and a flow regulating device for regulating the flow of air.