Bulk Compost Delivery in Gig Harbor, WA

Bulk compost delivered throughout Gig Harbor and Kitsap County. Mushroom, fish, and pre-blended Garden Mix from Harbor Soils.

If you're amending a tired vegetable bed, top-dressing a lawn, or starting a new garden in Pacific Northwest clay, the right compost is the difference between plants that survive and plants that thrive. This page covers the compost products we deliver in Gig Harbor, current per-yard pricing, how much you'll need for typical projects, and the practical differences between mushroom, fish, and blended composts.

Gig Harbor Service Area

We deliver compost throughout the Gig Harbor area (zip codes 98329, 98332, 98335, 98349) and adjacent Kitsap and Pierce County communities:

Gig Harbor: Downtown, Harborview, Crescent Valley, Rosedale, Canterwood
Artondale and Wauna (98335)
Fox Island (98333)
Purdy (98332): along the Burley-Olalla corridor
Olalla (98359) and Key Peninsula (98349): Lakebay, Home, Vaughn, Longbranch
Port Orchard, Bremerton, Silverdale, and Poulsbo: see our individual city delivery pages

Our yard at 11612 WA-302 in Gig Harbor is centrally located for the entire Kitsap and Gig Harbor peninsulas. Most weekday compost orders deliver same day or next day depending on truck availability.

To check delivery for your address: visit harborsoils.com or call 253-857-5125.

Compost Products We Deliver

Pricing below is current per-yard pickup pricing. Delivery is added based on distance and volume.

Mushroom Compost · $74.99 / yard

Spent mushroom substrate composted to a stable, dark, crumbly material. The most versatile single-source compost we carry: well-balanced NPK, near-neutral pH, and broad availability of micronutrients. Best for general garden beds, perennial borders, lawn top-dressing, and tree planting.

One caveat: mushroom compost runs slightly alkaline (pH 6.5 to 7.5). If you grow blueberries, rhododendrons, azaleas, or other acid-loving plants, use a different compost or amend to lower the pH.

Fish Compost · $113.99 / yard

Composted fish byproducts blended with plant material. Higher in nitrogen and phosphorus than mushroom compost, with measurable trace minerals from marine inputs. Best for heavy-feeding vegetables: tomatoes, peppers, corn, squash, brassicas. Also excellent as a fall amendment when you want nutrients in place for next spring.

Note: fish compost has a faint marine smell when fresh. It dissipates within a few days of incorporation.

Garden Mix (Mushroom Blend) · $61.99 / yard

Topsoil pre-blended with mushroom compost. Plant-ready out of the truck: no further mixing needed for most beds. The default choice if you're filling a new garden or raised bed and want to plant the same week.

Garden Mix (Fish Blend) · $85.99 / yard

Topsoil pre-blended with fish compost. Same plant-ready convenience as the mushroom blend, with the higher-nitrogen profile fish compost provides. The richest off-the-truck option we carry.

TAGRO Mix · $47.99 / yard

The City of Tacoma's branded biosolids-based soil amendment. EPA Class A "exceptional quality" product, well-tested, and a long-running favorite of Pierce County gardeners. We resell TAGRO at our Gig Harbor yard.

Browse the full compost collection at harborsoils.com.

Common Gig Harbor Compost Projects

Vegetable Garden Amendment (Spring)

Most established vegetable beds benefit from 1 to 2 inches of compost worked in each spring. For a 4 ft × 8 ft bed, that's roughly 0.1 to 0.25 cubic yards (3 to 7 cubic feet). Our minimum order is one yard, which covers four to eight typical raised beds.

New Garden Bed Construction

For a new bed in Gig Harbor's typical glacial-till subsoil, mix 30 to 40 percent compost into the top 8 to 12 inches of soil. Or skip the mixing and use one of our pre-blended Garden Mix products: plant-ready in one delivery.

Lawn Top-Dressing

A spring or fall top-dress of 1/4 to 1/2 inch compost rebuilds soil structure on lawns that have compacted under winter rain. For a 1,000 sq ft lawn at 1/2 inch, plan on 1.5 cubic yards. Mushroom compost at $74.99/yard is the standard choice. See our spring lawn care guide for application steps.

Tree and Shrub Planting

For new trees and shrubs in Kitsap clay, backfill the planting hole with 30 to 50 percent compost mixed with the native soil. The compost opens up clay structure and gives roots an immediate organic-matter source.

Restoring Tired Beds

Older perennial and ornamental beds eventually run out of organic matter. A 2-inch top-dress of mushroom compost, lightly worked into the surface, brings tired soil back without disturbing established plants.

Why Gig Harbor Soil Needs Compost

The Gig Harbor peninsula sits on glacial till, the rocky compacted material left behind when Pleistocene glaciers retreated. Native soils here typically run:

Low in organic matter: glacial till has very little decomposed plant material to start with
Compacted: especially under foot traffic, equipment, and decades of footprint pressure
Slightly to moderately acidic: pH 5.0 to 6.0 is common, which limits nutrient availability
Slow draining: water hangs at the surface in winter and bakes hard in summer

Compost addresses all four problems: it's pure organic matter, which holds water in summer and improves drainage in winter, feeds soil microbes, and (depending on source) buffers pH. WSU Extension's Kitsap County office recommends 2 to 4 inches of compost worked into soil annually for productive vegetable gardens in our region.

How Much Compost Do You Need?

Formula: Length (ft) × Width (ft) × Depth (in) ÷ 324 = Cubic yards needed

Or use our compost calculator.

Project	Area	Depth	Yards Needed
Lawn top-dress	1,000 sq ft	1/2 in	1.5 yards
Vegetable bed amendment	200 sq ft	2 in	1.2 yards
4×8 raised bed (full fill, 12 in)	32 sq ft	12 in	1.2 yards
New perennial border	500 sq ft	3 in	4.6 yards
Tree planting (50 trees)	n/a	~1 cu ft each	2 yards

Tip: Order 10 percent over your calculated need. Compost compresses during truck loading and settles after spreading.

Compost Delivery: How It Works

Calculate volume. Use the table above or our calculator.
Pick a product. If you're not sure: Mushroom Compost for general use, Garden Mix if you want plant-ready blended soil.
Place the order. Visit harborsoils.com/collections/composts or call 253-857-5125.
Confirm access. Compost is heavy and our trucks won't drive on lawn (rutting). Tell us about steep driveways, low overhangs, or narrow access.
We deliver and dump. Standard delivery is dump-only on driveway or flat staging area. You wheelbarrow into beds.

For the full ordering walk-through (cubic yard math, supplier questions, delivery prep), see our pillar guide: Topsoil Delivery Near Me: What to Expect & How to Order.

Compost vs. Topsoil vs. Garden Soil

If you're not sure which product fits your project:

Compost is decomposed organic matter. Best as an amendment or top-dress, not as a standalone planting medium.
Topsoil is screened mineral soil. Best for grading, lawn fill, and bulk volume.
Garden soil / topsoil blends mix the two. Best for new garden beds and raised beds you want to plant immediately.

Read the full comparison: Compost vs. Topsoil vs. Garden Soil.

Contractor & Commercial Orders

Landscape contractors and developers working Gig Harbor projects can order:

Volume pricing for 5+ yard orders
Multi-load coordination for large bed installs
Recurring delivery scheduling for active job sites
Mixed-product loads (compost + topsoil + bark) where volume permits

Reach the office at 253-857-5125 or office@harborsoils.com.

Frequently Asked Questions

How much does compost cost in Gig Harbor?
Per-yard pickup pricing at Harbor Soils currently runs $74.99 for Mushroom Compost, $113.99 for Fish Compost, $61.99 for Garden Mix Mushroom Blend, and $85.99 for Garden Mix Fish Blend. Delivery is added based on distance from our Gig Harbor yard.

What is the difference between mushroom compost and fish compost?
Mushroom compost is spent substrate from commercial mushroom production: typically straw, peat, gypsum, and chicken or horse manure. It's well-balanced, slightly alkaline, and excellent for general garden beds. Fish compost is composted fish byproducts mixed with other organic matter. It's higher in nitrogen and phosphorus, ideal for heavy feeders like tomatoes, squash, and corn.

How much compost do I need per square foot?
For a 1-inch top-dress over a garden bed, plan on 1 cubic yard per 324 square feet. For a new bed amendment, mix 2 to 3 inches of compost into the top 6 to 8 inches of soil: that runs about 1 cubic yard per 100 to 160 square feet.

Can I plant directly into compost?
Generally no. Pure compost is too rich and holds too much moisture for most plant roots. Mix compost with topsoil at roughly 30 to 40 percent compost, 60 to 70 percent topsoil. Our pre-blended Garden Mix products do this for you.

Do you deliver compost to Port Orchard and Bremerton?
Yes. Harbor Soils delivers compost throughout Gig Harbor (98329, 98332, 98335, 98349), Port Orchard (98366, 98367), Bremerton (98310, 98311, 98312), Silverdale, Poulsbo, Olalla, Purdy, and Fox Island. Delivery fees are based on distance.

Is your compost organic?
Our compost products are made from natural organic inputs (mushroom substrate, fish byproducts, plant material). They are not certified organic for commercial production, but they are appropriate for home gardens following organic practices.

Order Compost for Your Gig Harbor Project

Visit harborsoils.com/collections/composts to browse current products and pricing, or call 253-857-5125 to talk through your project.

Harbor Soils delivers compost, topsoil, bark, and gravel throughout Gig Harbor, Port Orchard, Bremerton, Silverdale, Poulsbo, and the rest of Kitsap and Pierce County.

Harbor Soils
11612 WA-302, Gig Harbor, WA 98329
253-857-5125 · office@harborsoils.com

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