There are four patterns of soil aeration that we typically perform: Sheet Excavations, Root Collar Excavations, Hub and Spoke and Vertical Mulching.

Sheet excavation

When the root zone of a tree lives in compacted soil, the rest of the tree is negatively affected. Without the proper flow of nutrients and water moving through the root system, trees become stressed. In turn, that stress opens trees up to insect and disease problems that they would otherwise be able to fight off. Sheet excavation allows us to open up the compacted soil and even mix in a blend of macro and micro nutrients when necessary.

There are four patterns of soil aeration that we typically perform: Root Collar Excavations, Hub and Spoke, Vertical Mulching, and Sheet Excavations.

Root Collar/Flare excavation

Plants are commonly planted too deep or have excess soil or mulch covering the root flares resulting in decline, girdling root formation, root rot and even tree death. This service allows for a proper more informative inspection of the tree's root health and safety. The soil fertility and root health is a foundation for the overall health and longevity of a tree.

           Are your trees STRESSED out?

           Are your trees STRESSED out?

Hub and spoke

Aerating the soil in this pattern allows us to focus on rejuvenating the main roots of a tree. Compaction can be the result of a construction project or simply everyday vehicle or foot traffic over the roots. Also, some soil types (like clay-heavy soils) are more prone to compaction than others. When nutrient deficiency is great enough, it can damage a tree on its own.


This is the process of air-boring holes in a grid pattern beneath the canopy of a tree. These holes are filled with a combination of soil amendments and other specialty materials which allows oxygen, nutrients and water to penetrate to the roots. Vertical mulching can be very beneficial to a tree's root system and is used quite often to strengthen severely stressed or declining trees.

Vertical holes about 18 to 24 inches deep are made beneath the canopy of the tree. They are filled in with soil amendments and other beneficial materials, (yucca and sea kelp), that will benefit the root system of the tree.