Mulches & Barks
West Coast Soil Works offers a variety of standard blends and custom mixes designed to customer specifications.
Mulches and barks are both organic ground covers used for landscaping that improve soil health by retaining moisture, suppressing weeds, and regulating soil temperature.
0-1/4″ Fir Humus
0-1/4″ Treated Fir Humus
3/8″ Coarse Fir Bark
Composted Fir Humus
Fir Bark Nugget
Forest Floor
Gorilla Hair
Large Bark
Medium Bark
Pacific Pathway
Premium Small Bark
Walk On Bark – Premium
Walk On Bark – Standard
Decorative Barks
Decorative barks are the finishing layer that gives a landscape a clean, intentional look. Milled and screened from Douglas fir, our decorative barks deliver a consistent size and a warm, natural brown tone that sets off planting beds, tree rings, commercial frontages, and residential yards. Because bark is the outer layer of the tree, it holds its shape and breaks down slowly, so the look you install is the look you keep for longer between refreshes.
Size is what shifts the effect. Larger grades read bold and hold well on open beds and around established trees, while smaller, refined grades sit tighter and give a more polished, manicured finish up close. From coarse 3″ to 4″ pieces down to a refined 1″ to 1.5″ grade, there is a texture to match nearly any design.
Products Include: Large Bark · Medium Bark · Premium Small Bark · Fir Bark Nugget · 3/8″ Coarse Fir Bark
Functional Mulches
Functional mulches are chosen for the job they do rather than the way they look, though most still finish an area cleanly. These are the products that hold a slope, firm up a walking path, stand up to foot traffic, and lock moisture into the root zone through a long, dry Central Valley summer. Many are shredded or fibrous, which lets the material knit together and stay put instead of washing or blowing away.
The right pick depends on the task. Shredded redwood such as Gorilla Hair mats together and grips inclines where loose bark would slide. Pathway blends compact into a firm, walkable surface. Screened walk-on barks are built to take repeated foot traffic without breaking down quickly. And finer humus grades work well as a top dressing that feeds the soil as it settles. Tell us the application and we will point you to the material that fits.
Products Include: Gorilla Hair · Forest Floor · Pacific Pathway · Walk On Bark – Premium · Walk On Bark – Standard · 0-1/4″ Fir Humus · Composted Fir Humus
How to Choose: Bark vs. Mulch & Fir vs. Redwood
The words bark and mulch get used interchangeably, but the difference matters when you are matching a material to a project. Here is how we think about it, and how to pick between our two primary wood sources.
Bark vs. Mulch
Bark is exactly what it sounds like: the outer layer stripped from the tree, screened into consistent sizes. It is chunkier, it holds its shape, and it breaks down slowly, which makes it the go-to for decorative beds and areas where you want the look to last. Mulch is the broader term. It can include bark, but also shredded wood and finer material, and it is often processed so the fibers knit together. Mulch tends to break down faster than chunk bark, which is a drawback for pure appearance but a benefit when you want the material to feed and condition the soil over time. In short: reach for bark when longevity and looks lead, and for a shredded or fibrous mulch when moisture retention, slope holding, and soil health lead.
Fir vs. Redwood
Most of our decorative barks are milled from Douglas fir. Fir bark offers a rich brown color, a wide range of sizes, and a versatility that suits nearly any bed, border, or tree ring. Redwood products, including Gorilla Hair, bring a different set of strengths. Redwood is naturally fibrous, so it mats together and resists sliding, floating, and blowing, which is why it is a favorite for slopes, hillsides, and windier sites. Redwood also carries a warmer red tone that many designs are built around. If your project is a level bed where appearance and size selection matter most, fir is usually the answer. If you are covering an incline or a spot where the material needs to stay locked in place, redwood earns its keep.
Mulch & Bark FAQs
Learn about mulch and bark usage, application, upkeep and more.
How deep should I apply bark or mulch?
How much bark or mulch do I need?
How often should mulch be replaced or topped off?
Should I remove old mulch before adding new?
Which product is best for slopes and hillsides?
What works best for pathways and high-traffic areas?
Does bark mulch attract pests or termites?
Should I keep mulch away from tree trunks and plant stems?
Do I need landscape fabric underneath?
Does mulch really help during hot Central Valley summers?
Will the color fade over time?
How do I choose between fir bark and redwood?
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Trusted by growers, landscapers, and nurseries for over 40 years, West Coast Soil Works delivers consistent quality and dependable service professionals can count on.
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Precision-engineered blends that deliver consistent performance.
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