Description
The Underhill 36″ Tree Watering Stakes (A-DD36) is an effective tool designed for precise root watering of trees and shrubs. This innovative spike system ensures that water, oxygen, and essential nutrients are delivered directly to the root zone, promoting stronger, deeper root growth and overall plant health. By bypassing surface evaporation and runoff, these watering stakes significantly conserve water, making your irrigation efforts more efficient. They are suitable for a wide range of plants, including deep-rooted trees, palm trees, and both newly transplanted and established specimens. The durable construction allows for easy installation and repositioning, making it a reliable solution for long-term tree care.
KEY FEATURES AND BENEFITS:
- Targeted Root Watering: Delivers water, oxygen, nutrients, and fertilizer directly to the root zone, encouraging deeper root growth and improved nutrient uptake.
- Water Conservation: Reduces water loss from surface evaporation and runoff, potentially saving up to 50% of outdoor water usage.
- Enhanced Plant Health: Promotes stronger, more resilient root systems by ensuring optimal hydration and nutrient delivery where it’s most needed.
- Versatile Compatibility: Works seamlessly with standard garden hoses, flood irrigation systems, or automatic drip irrigation setups.
- Aeration and Fertilization: Helps aerate the soil around the roots and allows for direct application of fertilizers, preventing waste and ensuring efficient nutrient absorption.
- Weed Control: Minimizes the growth of surface weeds by reducing available surface water, preventing competition for resources.
- Durable Construction: Made from robust, recyclable ABS plastic with UV protection, designed for long-term use and withstands various soil conditions.
- Clog Prevention: Features multiple mesh-filtered holes to prevent dirt and debris from entering the tube, ensuring continuous water flow.
- Easy Installation and Repositioning: Can be hammered into the ground and easily removed or rotated for optimal placement around the tree’s drip line.
- USA Made: Manufactured in the U.S.A., with customer support available.
SPECIFICATIONS:
- Model Number: A-DD36
- Overall Length: 36 inches (91.44 cm)
- Tube Diameter: 3/4 inch, tapering to a point
- Material: ABS plastic (ABS HI121H for sidewall, ABS with UV inhibitors for cap)
- Weight: 1.0 lbs (per stake)
- Color: Natural (typically dark brown/black)
- What’s Included: One (1) Underhill 36″ Tree Watering Stake (A-DD36) per purchase.
HOW TO USE:
- Determine Placement: For new plants, position the stakes outside the root ball in a triangular pattern. For existing plants, place them just inside the dripline or canopy. It is recommended to use 3 or more stakes per tree, spaced every 4-5 feet around the canopy. Larger trees may require more stakes.
- Drive Stake into Ground: Using a 3-5 lb. sledgehammer, carefully hammer the top cap of the stake into the ground until the desired depth is reached. The cap is designed to withstand hammering without cracking.
- Connect Water Source:
- For Garden Hose/Flood Irrigation: Insert the hose into the top of the stake, allowing water to flow slowly down to the roots.
- For Automatic Drip System: Securely insert a 1/4″ drip line/emitter into the custom slotted cap on top of the stake.
- Watering Duration: Adjust watering time based on your tree’s needs, soil type, and climate. The Deep Drip system ensures efficient water delivery to the root zone.
- Repositioning (Optional): If needed, insert a screwdriver or rod into the two holes at the top of the shaft to easily remove, reposition, or rotate the stake.
BENEFITS OF USING UNDERHILL 36″ TREE WATERING STAKES (A-DD36):
- Promotes a healthier and more extensive root system for trees and shrubs.
- Significantly reduces water waste from evaporation and surface runoff.
- Delivers nutrients and fertilizer directly where plants can best utilize them.
- Improves soil aeration, enhancing the exchange of air and water at the root zone.
- Helps prevent surface erosion by reducing direct surface watering.
- Reduces competition from weeds by limiting surface moisture.
- Contributes to stronger, more drought-tolerant plants.
- Simplifies watering for large or established trees.
FEATURES:
- Pointed tip for easy ground penetration.
- Multiple internal mesh-filtered apertures to prevent internal clogging.
- Reinforced top cap for hammering installation.
- Slotted cap design to secure 1/4″ drip lines.
- Integrated holes for convenient stake removal or adjustment.
- Constructed from high-grade, UV-protected ABS plastic.
- Slim profile for discreet installation.
- Designed to encourage vertical root growth.





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