A tree planted correctly in average soil consistently outperforms a tree planted poorly in amended soil. Depth, root flare position and establishment watering matter far more than what goes into the hole.
Planting depth
The root flare — the point where the trunk widens into the roots — must be visible at finished grade. Nursery stock is frequently buried too deep in the container or ball, so excavating the top of the root ball before planting is part of the job.
The hole and the backfill
- Dig wide and shallow: two to three times the root ball width, no deeper than the ball height.
- Backfill with native soil. Heavy amendment creates a container effect in clay.
- Remove wire, burlap and twine from the upper root ball.
- Mulch a wide ring two to four inches deep, pulled back from the trunk.
The first three seasons
Establishment is measured in years, not weeks. Consistent deep watering through the first three growing seasons — plus winter watering — is the single strongest predictor of long-term survival on the Front Range.