AGBB 2031 Module 2 Diagnosing Root and Soil Disorders

Saucer-shaped planting hole, three times root ball diameter.

Generally, at least two structural roots should be found in the top 1-3 inches of soil, 3-4 inches out from the trunk. On species prone to trunk circling roots (such as Crabapples, Green Ash, Hackberry, Littleleaf Linden, Poplar, and Red Maple), the top structural root should be within the top one inch of the root ball.

Top of root ball rises 1-2" above grade. No backfill soil covers top of root ball.

Backfill soil covers root ball "knees" and tapers down to original soil.

Tree sits on undisturbed soil.