Features & Details Self-Watering Design: This innovative design allows the bag to automatically refill with water by absorbing rain or snow, making it much more convenient than traditional watering bags. This self watering tree bag can go up to 30 days without needing to be manually refilled, depending on local humidity, temperature, and precipitation. Promote Healthy Tree Growth: With a capacity of 10 gallons (37.8L) and a diameter of Ø23 inches (Ø590mm), this tree watering bag provides broad coverage around the tree roots. The slow-release water system nourishes the tree roots directly, helping trees thrive after transplanting or in hot summer conditions. Wide Compatibility: The set includes 4 watering bags, making it ideal for efficient irrigation of newly planted saplings or mature trees. Each slow release watering bag fits trees with a trunk diameter of up to 3.54 inches (90mm) and a minimum tree height of 1.97 inches (50mm). Water Conservation: The slow-release mechanism minimizes water wastage, providing long-lasting irrigation with a small amount of water. This reduces the need for frequent manual watering, saving both water and your valuable time, energy, and money. Easy to Install: Simply soak the bag in water until it’s fully absorbed, then wrap it around the tree trunk. For better results, you can cover the bag with coarse mulch, such as wood chips. During dry seasons, it's recommended to check the bag and the surrounding soil regularly, topping up the water as needed.