Upgrade your tree - watering routine with our 20 - gallon slow - release tree watering bags, sold in a 3 - pack. These bags are designed to deliver water deep below the soil surface, promoting strong root growth and reducing the impact of transplant and drought shock. With a 20 - gallon capacity, they can significantly cut down on watering frequency, saving you money on tree replacement and labor. The water release time varies from 5 to 24 hours, adapting to different soil types, weather, and tree characteristics. There's no fixed watering schedule; you can adjust it based on local conditions, usually 1 - 2 times a week for new plantings. Installation is a breeze. Simply wrap the bag around the tree, zip it up, fill it to 1/4 capacity, lift the straps to expand the bottom, and you're good to go. The wide fill opening fits up to a 3 - inch diameter hose, and it takes only 2 - 5 minutes to fill with a standard garden hose. Crafted from weather - resistant PVC with scrim reinforcement, durable polypro straps, and nylon zippers, these bags are built to last. Ideal for newly planted or established trees, they offer a convenient and effective way to keep your trees healthy. Material: Plastic.