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Benefits of wood chip mulch
Saves water
Insulates roots from heat & cold
Prevents weeds
Diverts waste from the landfill
Builds healthy soil
Sequesters carbon in soil
Naturally feeds your trees
Why wood chips?
Natural wood chips, also known as arborist wood chips, include trimmings from tree pruning and removals and are the best material for your tree. All above-ground parts of the tree are incorporated, including bark, wood, twigs, and leaves.
When natural wood chips are applied in a 4-6" thick layer, their different sizes allow them to lock together to form a stable mat of mulch that blocks weeds, saves water, and won't wash or blow away. After 1-2 years, the wood chips break down to organically enrich the soil and should be replenished.
How to mulch your trees
Before you begin, remove grass and weeds in the area to be mulched.
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(optional) Spread a 1-inch layer of compost on top of the soil to speed up the process of building healthy soil full of beneficial microbes.
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For young trees, spread wood chip mulch in a 4-foot area around the tree, 4 inches from the trunk, and 6 inches thick. Continue expanding the mulch outward as the canopy grows. For mature trees, spread mulch under as much of the canopy as possible but keeping it 6 inches away from the trunk.
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Add more mulch on top as it breaks down, about once a year. Do not allow grass or other plants to grow near the trunk.