Certified Arborist Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

Is it true that the planting hole should be deeper than the root ball?

True

False

The appropriate standard for planting a tree is that the planting hole should be shallower than the root ball. This ensures that the upper portion of the root ball is slightly above the surrounding soil level. Planting too deep can lead to several issues, such as the roots suffocating due to lack of oxygen and increased susceptibility to rot and diseases.

When the root flare—the point where the roots meet the trunk—remains above the soil line, the tree is better positioned to establish itself and thrive. If the planting hole is deeper than the root ball, the tree could settle over time, burying the root flare beneath the soil and causing various complications. Therefore, cultivating an understanding of this planting methodology is crucial for successful tree health and longevity.

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Depends on soil type

Only for large trees

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