TreeDiaper TD36R has a 36" diameter and it is recommended for trees with a rootball around 18" diameter. For trees that have much larger rootball, consider larger sizes of TreeDiaper systems. If rootball sizes are not available, TD36R can be used for trees or shrubs up to 3 inch caliper. Consider 2-3 years of caliper growth prior to the tree's establishment. TreeDiaper36 is made of two half rings, which can easily placed around multi-stem shrubs. Simply soak the mat in water to get it started, then place it around your plants. Cover with mulch reduces vandalism.
It is a four-season watering technology that can significantly reduce watering need, including winter when most irrigation systems are on strike. The rain/snow/ice water that come down during these times can be saved for next growing season.
By absorbing rain or irrigation water before slowly releasing it back when soil dries, it significantly boosts the field capacity and plant available water. When used properly, it promotes healthy outward root growth that facilitates establishment of newly planted trees and shrubs and enhances the long term health.