Landscape · L-R3TTR

Tree Planting Details in Decomposed Granite and Box Configurations

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Tree planting details showing two typical installation configurations. The first assembly specifies planting in decomposed granite paving, featuring a tree set with root flare flush with finished grade or planter soil, amended backfill mix, and a root barrier adjacent to walks and wall conditions. Two two-inch diameter lodge poles are set plumb and opposite to support the tree, with galvanized steel wire attached to the pole and encased in reinforced black rubber hose at two-thirds to one-half the height of the tree. A 12-inch diameter by four-to-six-foot deep auger hole is backfilled with three-quarter-inch drain rock beneath the root ball. The second assembly details a 24/36-inch box tree planting with a tree root flare set two inches above finished grade, amended backfill mix in the entire tree pit, and a deep root water barrier that is 40 mil thick with sealed joints. Both configurations specify a root ball width of two times the root ball diameter, prepared subgrade, and specific notes regarding tree species consistency, nursery selection, and staking requirements.

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