Each Vardensok fills one tray of any Varden™ Vertical Garden or Farm. Packaged as a soil companion for the  Varden™ Vertical Garden 36 which has 6 rows of trays and holds 12 Vardensoks. Breathable mesh is filled with our tested soil blend for assured growing success, moisture retention, nutrition and flavor. All Varden growing systems feature innovative drip irrigation. The tightly filled Vardensok are perfectly round to match the Varden Tray shape, ensuring good contact with drip lines and water holding cells in the bottom of each tray. You will have gardening success with Varden Vertical Gardens and accessories!