@monikozi The seeds are imbedded in some material that absorbs water. Every couple of weeks we put a small amount of nutrient into the tank. The tank has a little fountain that comes on for a few minutes every hour to keep the water circulating around the pods. We have grown lettuce and herbs in it at different times.
@olivetreeann Ours is 16 X 9 inches. The height varies because as the plants get bigger the lamp can be moved up. It uses LED light. It also comes in smaller and bigger versions. You can see that we aren’t using it all….2 more could be added. We have grown salad and herbs and filled all the slots. We didn’t want to crowd these flowers. It’s kind of self efficient. It doesn’t need water to be added very often. Ours is usually a little more than 2 weeks. The panel in the front that doesn’t show much in the photo, tells when to add nutrient and water.