Hydrofarm’s self-watering tomato planters provide lightweight, strong support for tomatoes, beans, peas, cucumbers & other climbing plants & flowers. Use with any potting soil or coco planting mix & the Easy-Fill reservoir system delivers water & nutrients from below, helping avoid over or under watering. The sturdy frame construction help support the weight of vines as they grow, allowing the plant to devote more energy to developing fruit & preventing the fruit from falling off before it’s Ripe.