
Compost Delivery in Seattle, WA
Bulk compost delivered in Seattle, WA. Dark brown color.
From $94.00/ton delivered, free delivery on full loads
Compost Delivery in Seattle, WA
Seattle gardens hard, and the ground does not always cooperate. Much of the city sits on glacial till, a dense, gravelly hardpan left by the ice sheets that drains poorly and packs like concrete, and the soil around newer construction is often compacted fill with the topsoil stripped away. Add a marine climate that dumps rain from October through May and then turns surprisingly dry in midsummer, and you have ground that swings between waterlogged and bone hard. Compost is how Seattle gardeners and landscapers fix both ends of that swing. It opens up the till so winter rain drains, it builds organic matter into tired fill, and it banks moisture for the dry July and August stretch. MyGravelBuddy delivers screened, dark brown Compost across the city and the wider Seattle-Tacoma-Bellevue metro, with bulk pricing that starts at $94 per yard on larger loads. From a raised P-Patch bed in Ballard to a full parking-strip rain garden in Columbia City, we bring the material to you by the truckload.
Why Seattle Gardeners Rely on Compost
The recurring problem here is glacial till and drainage. That dense hardpan sheds water sideways rather than down, so beds stay soggy through the long wet season and roots suffocate. Worked into the top several inches, compost opens the structure, lets winter rain move through, and adds the organic matter that lets roots breathe. On the dry side of the year, the same amended soil holds the moisture plants need through a midsummer dry spell that catches a lot of newcomers off guard. Blended with Topsoil, compost makes excellent fill for the raised beds that are nearly universal in Seattle vegetable gardening, a smart way around till that is too hard to dig and too wet to plant in directly.
Seattle’s strong gardening culture is the second driver. This is a city of P-Patches, edible front yards, parking-strip plantings, and a real interest in soil health, and compost is the backbone of all of it. Local crews put it to work in a handful of consistent ways:
Common Local Projects
- Raised vegetable beds blended with topsoil in Ballard, Wallingford, and Beacon Hill
- Parking-strip and rain-garden plantings that need fast-draining amended soil
- Soil repair on compacted glacial-till and new-construction lots
- Lawn topdressing and overseeding on moss-prone shady turf
- Bed blending under a finishing layer of Hardwood Mulch for shade and woodland borders
Local Delivery and Lead Times in Seattle
We deliver to every Seattle ZIP, from downtown near 98101 out across the neighborhoods and around the lakes. On orders of 8 tons or more we typically deliver same or next day, and smaller 3-ton loads arrive within 1 to 2 business days. The dry-season window from late spring into early fall is the busy stretch, since that is when the soil is workable, so booking a few days ahead helps lock in your slot.
Our reach runs down the I-5 corridor and beyond. We regularly serve the Tacoma and Bellevue ends of the metro and run loads south to Portland, about 145 miles down the freeway. Seattle’s terrain is its own delivery puzzle, between the steep hills, the narrow neighborhood streets, the alley-loaded houses in Capitol Hill and the Central District, and the homes perched on slopes above the water. Our drivers know the city. If a truck cannot reach the backyard, tell us the cleanest spot to set the pile and your crew can wheelbarrow it the short way.
Bulk delivery also wins on simple math against bagged compost. One cubic yard replaces close to 36 of the one-cubic-foot bags you would otherwise haul home and split open by hand, so even a modest 3-yard bed-fill is over 100 bags. Taking it as a single pile dropped on a Wallingford driveway or a Beacon Hill side yard saves the labor and the plastic, and your crew can start filling beds the moment the truck pulls away.
How Much Compost Do You Need?
Compost is sold by the cubic yard, and one yard covers about 100 square feet at a 3-inch depth, or roughly 160 square feet at 2 inches for topdressing. Here is a typical Seattle scenario: building four 4-by-8-foot raised vegetable beds in a Ballard backyard, each 12 inches deep, sitting on top of hard till. That is 128 cubic feet, or close to 5 yards, and most growers blend that with topsoil, so figure 2 to 3 yards of compost in the mix. For amending a 200-square-foot parking-strip planting at a 3-inch dig-in, plan on roughly 2 yards.
The formula is simple: area in square feet times depth in inches, divided by 324, gives cubic yards. For raised beds, multiply length by width by depth in feet and divide by 27. Round up when you land between sizes, since Seattle till takes a generous amendment to drain and breathe.
Local Pricing in the Seattle Metro
Bulk pricing rewards larger loads. Our Seattle compost runs $126 per ton on a 3-ton minimum order with a $244 delivery fee, a fit for a single home garden or a few raised beds. Step up to $107 per ton at 8 tons and the delivery fee falls to $132 while you unlock same or next-day service. At 15 tons and above the price drops to $94 per ton with free delivery, the tier where landscapers, builders, and multi-property jobs land, and the source of that headline $94 per yard rate. If you are coordinating compost across several Seattle addresses or a P-Patch community plot, combining them into one 15-ton load is the most economical path.
Installation and Spreading Tips
Working glacial till rewards good timing as much as effort. Do not dig or till when the ground is saturated from a wet-season storm, since that smears and seals the till worse than it already is; wait for one of the drier breaks. Loosen the existing ground a few inches, then work 2 to 3 inches of compost into the top 6 to 8 inches with a fork or tiller and rake level so the amended layer ties into the soil below. For lawn topdressing, mow short, core aerate to punch through the compacted surface, then spread a thin quarter to half inch and drag it in so the grass crowns stay above the layer.
For raised beds, blend compost with Topsoil or a bagged Garden Soil at roughly half and half for vegetables, since pure compost in a box can stay too wet and run rich, which matters even more in a climate this wet. Once plants are in, cap the bed with two inches of Hardwood Mulch to hold midsummer moisture and suppress the weeds and moss that thrive in the damp. In rain-garden and parking-strip plantings, go heavier on the compost-and-topsoil blend so the soil drains fast and never holds standing water.
Seasonal Notes for Washington
The Seattle compost calendar is dictated by the rain. The prime working window is the dry season, roughly late May through September, when the soil finally dries enough to dig and amend without smearing the till. Early fall, before the rains return in October, is also good for lawn topdressing and overseeding cool-season turf, which establishes well in the cool, damp shoulder season. Avoid working soil during the saturated stretches of the long wet season, which compacts the till and undoes the benefit. Because the marine climate runs cool and damp much of the year, compost stays biologically active a long time once it is in the ground. In the low spots and parking strips that pond after a heavy rain, blend in extra topsoil and lean on compost to keep drainage moving. Whether you are amending a lot in Seattle or running a load down toward Tacoma or Portland, timing delivery to a dry, workable window gives you the richest mix and the best drainage through the wet months.
About Compost
About Compost
Compost is a dark brown, fully decomposed organic soil amendment produced from yard trimmings, leaf litter, and clean plant material broken down under controlled heat. The finished product is screened to a fine, crumbly texture and cured until it is stable, biologically active, and free of the raw odor and weed seed that mark unfinished material. Its dark color comes from humus, the stable carbon that gives compost its long-lasting soil-building value.
Sold by the cubic yard, this product weighs roughly 1,000 pounds per yard, light enough to spread and blend quickly by hand or with a compact skid steer. A standard 3-inch application covers about 100 square feet per yard for bed amendment, while a thin topdressing layer at a quarter to half inch will stretch across 600 to 1,200 square feet of lawn per yard. It mixes cleanly with topsoil and sand and rakes out evenly because it ships screened rather than chunky.
Typical uses include raised-bed fill blended with topsoil, vegetable and flower bed amendment, lawn topdressing and overseeding, tree and shrub planting backfill, and soil structure repair on compacted, clay-heavy, or depleted ground. Unlike a decorative mulch, compost is a working amendment: it improves drainage in clay, boosts water retention in sandy soil, feeds soil microbes, and slowly releases nutrients to plants. For vegetable beds it is usually blended roughly half and half with topsoil rather than used straight, since pure compost can hold too much moisture and run nutrient-rich. As a soil-conditioning grade rather than a finished planting medium, it performs best worked into the root zone or screened across an existing lawn, then watered in to settle and bond with the soil below.
What Compost costs in Seattle
Local Seattle yards quote compost by the ton; the delivered number includes fuel, the truck, and the haul. Pricing in Seattle starts at $94 per ton on full-truck loads, which works out to roughly $47 per cubic yard at the typical density of 1000 lb per yard. A ton of this material spreads across about 216 sq ft when laid 3 inches deep, useful when you are sizing a patio base or a walkway run.
How crews use Compost in Seattle
In and around Seattle, compost shows up most often on two project types. The most common deployment is planting bed gravel, often in tight urban lots and infill builds in two to three inch lifts. At roughly 749,256 people, the Seattle order mix leans toward 3 to 8 ton residential drops with the occasional 16 ton job for a contractor.
Delivery day in Seattle
A typical Seattle drop is dispatched from the closest yard with a two hour window and a heads-up call once the truck is loaded. Tandem trucks want a 12 ft lane in and out; tri-axles need 14 ft, and both want firm ground at the tipping spot so the load releases cleanly. Standard lead time on this lane is Mon-Sat, with same-day windows held open for orders that hit the desk before 11 AM and clear payment.
Related materials we deliver in Seattle
Delivered pricing in Seattle
| Order size | Price / ton | Delivery fee | Lead time |
|---|---|---|---|
| 3+ tons | $126 | $244 | 1-2 business days |
| 8+ tons | $107 | $132 | Same/next day |
| 15+ tons | $94.00 | Included | Free delivery |
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How much compost do I need for raised beds in Seattle?
How fast can you deliver compost in Seattle?
Orders of 8 tons or more usually arrive same or next day across the metro. Smaller 3-ton loads come within 1 to 2 business days. The dry-season stretch from late spring into early fall is busy, so book a few days ahead to secure your slot.
What is the minimum order for bulk compost delivery?
The smallest bulk tier is 3 tons at $126 per ton with a $244 delivery fee, which suits a single home garden or a few raised beds. Larger loads lower both the per-ton price and the delivery fee, with free delivery starting at 15 tons.
What does compost cost in the Seattle area?
Pricing starts at $94 per yard on the best-value tier. By weight it is $126 per ton at 3 tons, $107 per ton at 8 tons, and $94 per ton at 15 tons and up. Delivery is $244 at the small tier, $132 at 8 tons, and free at 15 tons.
Will compost help my Seattle glacial-till soil drain?
Yes. Dense glacial till sheds water sideways and keeps beds soggy through the wet season. Worked 2 to 3 inches into the top 6 to 8 inches, compost opens the structure so winter rain moves through, and the same amended soil banks moisture for the dry summer.
When is the best time to add compost in Seattle?
The dry season, roughly late May through September, is the prime window because the soil is finally workable without smearing the till. Early fall is also good for lawn topdressing before the rains return. Avoid digging while the ground is saturated.
Can I use compost for a rain garden or parking strip?
Should I use straight compost or blend it for vegetable beds?
Blend it. Pure compost in a raised bed can stay too wet and run nutrient-rich, which matters even more in a climate this wet. Mix it roughly half and half with topsoil or a bagged garden soil, then cap the bed with hardwood mulch to hold midsummer moisture.
Can I topdress a shady, moss-prone lawn with compost?
Yes. Mow short, core aerate, then spread a thin quarter to half inch and drag it in so the crowns stay above the layer. Fall is ideal for topdressing and overseeding cool-season turf in Seattle's cool, damp shoulder season before the rains return.
Do you deliver compost outside the city of Seattle?
Yes. We cover the full Seattle-Tacoma-Bellevue metro and regularly run loads down the I-5 corridor toward Tacoma, Bellevue, and Portland about 145 miles south. Share your address for an exact lead time and an access plan for hilly or alley-loaded lots.


