Every day, tree service crews across Olympia, Lacey, and Tumwater process tons of fresh green timber, branches, and brush through commercial industrial chippers. Rather than hauling this organic material to municipal green-waste dumps, thousands of cubic yards of fresh arborist wood chips are recycled directly back into local gardens.
Arborist wood chips are vastly superior to commercial store-bought bark dust or dyed beauty bark. Commercial bark nuggets are often uniform, chemically dyed, and water-repellent when dry. In contrast, arborist mulch contains a diverse mix of coarse wood chunks, fine fiber shredding, crushed bark, and green leaf matter.
This structural diversity creates a thick, breathable blanket across garden soil. In Western Washington's dry summer months, a 3-to-4-inch layer of wood chips reduces soil evaporation by up to 70%, keeping plant root zones cool and drastically lowering residential irrigation bills.
As the wood chips slowly break down, they provide the primary food source for beneficial mycorrhizal fungi. This fungal network improves soil structure, breaks down dense Pacific Northwest glacial clay, and releases essential macro-nutrients directly to trees, shrubs, and perennial plantings.
A common myth is that cedar or fir chips will turn soil too acidic or rob plants of nitrogen. Extensive arboricultural research shows that nitrogen tie-up is strictly limited to the micro-layer where wood touches dirt. When used as an exterior mulch around landscape perimeters, arborist chips suppress weeds naturally without toxic herbicides.