Automator #7999 (3 trays per pack)
Red Tomato Tray-Replacing the Automator, these trays work the same way to warm the soil and protect plants against cutworms and droughts. The innovation is the red plastic that reflects red light back to plants, a benefit which some university studies show helps stimulate plant growth. The tray holds 1/2 gallon of water and has 4 holes for fertilizer, allowing slow, steady feeding with each watering. Split tray design allows for easy installation around plant stems.