Give your trees room to grow with Vego Garden’s Tree Surround & Watering Ring Kit! Using a tree surround neatly contains mulch, and protects your tree from moisture loss, flooding, & damage from lawn equipment. Paired with the heavy-duty 16 gallon slow release watering ring, your trees will be set to thrive for years to come! Vego’s Tree watering bags are donut-shaped to easily fit around the trunk of your tree, and neatly into the Tree Surround. Placed under or over mulch, these UV-resistant watering bags provide slow-release irrigation to the roots of your tree, reducing shock and stress.