Landscape · L-DT3YY

Deciduous Tree Planting

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The broadleaf tree is planted with its trunk flare visible and the crown of the rootball set one inch above the finished grade, while mulch is held back from the crown. The rootball sits on undisturbed native soil or compacted planting backfill with specified fertilizer tablets if required by the soils test, inside a tree pit whose sides and bottom are broken up and backfilled with a 50 percent import topsoil blended with 50 percent native soil. The top half of natural burlap is removed and disposed of, or all synthetic burlap and wire cages are completely removed. Three three-inch diameter lodgepole pine stakes are driven into the subgrade outside the rootball to a height of five feet above finish grade, avoiding damage to the trunk or rootball. The tree is secured to the stakes using soft polypropylene material, such as arbortie or approved equal, at least three-fourths of an inch wide with a minimum 900-pound break strength, attached in a figure-eight pattern as low on the trunk as possible without rubber hose or wire systems. Pruning is limited to what is directed in the field by the landscape architect, including maintaining a terminal bud on a central leader, removing or cutting back codominant and potentially codominant leaders, removing crossover branches, thinning tightly spaced branches, and eliminating lower crown branches to a specified clear trunk dimension.

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