Tray Insert - 12 Cell Trays

12 Cell Plastic Trays with Holes. Microgreens. Gardening. Wheatgrass. Seed Starting. 12 Cell plastic trays fit any 20x10 microgreens watering tray and come pre-cut with easy and large drainage holes. Each tray is 5x2 inches long and wide and comes perforated for easy propagating and seed starting without any worry of mess. 12 cell trays easily fit 10x10 watering trays as well when split in half, comfortably fitting 6 individual 2x5 trays per 10x10. Tray Insert - 12 Cell Trays 12 plastic cell trays are ideal for growing personal and perfectly sized portions of microgreens and wheatgrass because they are much smaller than an entire 20x10 or 10x10 tray. Plastic 12 cell 5x2 trays are perfect for seed starting for much larger crops such as artichoke, borage, and especially onions. 2x5 plastic trays are ideal for growing your own onion starts for seasonal transplanting. When seeded densely, just one 2x5 plastic tray can easily germinate up to 30 onion starts for transplanting. 12 cell 2x5 i