JM GARDENS is a slow-release irrigation bag for new and established plants and trees. Our bags provide a healthy environment around trees and plants by slowly filtering water through Micro-perforated release points along the bottom seam. For outdoor use, and are fully reusable. Features: - Easy to fill and use. - The pack includes 4 Tree Watering Rings. - Capacity of 15 gallons (56.8 L) of water. - Material: PVC. - Safe to use with nutrient or chemical additives. - No tools are required to install. How to use: - Put the bag around the tree. - Insert the hose into the hole on the top of the bag and start filling it with water. - Fill 1 to 2 times per week or as required. NOTE: Use clean water. If you use any water-soluble fertilizer, verify that it is well dissolved. Caring for your trees was never easier!