Underhill A-DD36 Deep Drip Spikes for Palm Trees and Deeper Rooted Trees, 36-Inch Green King Deep Drip Tree Watering Stake 36in Our 36 inch Deep Drip Tree Watering Stakes water your trees and shrubs at the roots. While directly watering underground, you will help to conserve water, prevent runoff and erosion, promote deeper roots, and better fertilize the tree. Our watering tools easily connect to your automatic drip system or you can even pull up a hose and let the water slowly flow down to the roots. Whether in soft soil or very hard clay, our stakes are quality-built and engineered to be pounded into the toughest conditions. Features One of the most effective devices to get water, oxygen and fertilizer to your tree's roots quickly and efficiently 100% of the water directed to tree goes deep into the ground; Internal filter keeps dirt and rock from entering the device Hassle-free and maintenance-free tree deep-watering; Works with garden hose, flood irrigation, or in conjunction with automatic landscape drip system You can also add fertilizer into the shaft to continually direct nutrients to the root zone Made of sturdy ABS and PVC USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.