Hydrofarm 10 Gallon Self Watering Tomato Trellis Garden on Wheels, Pair | GCTR Hydrofarm Tomato Trellis on Wheels Includes two tomato trellises Trellis expands to over 4 feet tall and snaps together Self-watering planters provide lightweight, strong support for tomatoes, beans, peas and other climbing plants and flowers Easy-to-fill reservoir system delivers water and nutrients from below, helping avoid over- or under watering