• Seattle WA Compost Delivery - Mulch Mound
  • Seattle WA Compost Delivery - Mulch Mound
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Seattle Compost Delivery
Seattle Compost Delivery

About this compost

Finished screened compost, fully broken down and ready to work into beds. The general purpose choice for building soil that holds water and feeds roots.
Ryan Cully
Ryan Cully
Google Review

First time going with this company for mulch and it was an efficient process from start to finish. Website was easy—I told them exactly where I wanted the mulch put on my driveway, and it was delivered perfectly when I got home from work the next day. Best deal around when I c...

One cubic yard of compost covers about 324 square feet at a 1 inch depth, which is the right thickness for topdressing an established lawn. For garden beds, plan on 2 to 3 inches tilled in, so figure roughly 110 to 160 square feet per cubic yard at that depth. Measure your bed or lawn area first, then order by the cubic yard rather than guessing with bags.

A yard is approximately 27 cubic feet. As a general guideline, one yard of material can cover an area of about 100-160 square feet at a 2-3 inch depth.

FAQs

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Seattle Compost Delivery

Seattle Compost Delivery

4.7
137 reviews
$60.00 per Yard
$60.00
Sale Sold out
Shipping calculated at checkout.
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Hand-picked local yards
4,000+ regional deliveries
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Why order through Mulch Mound

The best local compost, without the guesswork.

We hand-pick and partner with the best yards in your region, keep only the ones our buyers rate well, and back each load with our guarantee.

Mulch Mound Guarantee

If your compost isn't the quantity or quality you ordered, we'll make it right.

About this compost

Finished screened compost, fully broken down and ready to work into beds. The general purpose choice for building soil that holds water and feeds roots.
Ryan Cully
Ryan Cully
Google Review

First time going with this company for mulch and it was an efficient process from start to finish. Website was easy—I told them exactly where I wanted the mulch put on my driveway, and it was delivered perfectly when I got home from work the next day. Best deal around when I c...

One cubic yard of compost covers about 324 square feet at a 1 inch depth, which is the right thickness for topdressing an established lawn. For garden beds, plan on 2 to 3 inches tilled in, so figure roughly 110 to 160 square feet per cubic yard at that depth. Measure your bed or lawn area first, then order by the cubic yard rather than guessing with bags.

A yard is approximately 27 cubic feet. As a general guideline, one yard of material can cover an area of about 100-160 square feet at a 2-3 inch depth.

FAQs

Read all FAQs

View full details

How It Works

Getting started is easy — just follow these simple steps

1

Choose your quantity

Adjust the quantity to match your project. One cubic yard covers about 100 to 160 square feet at a 2 to 3 inch depth.

2

Select your delivery date

Select a delivery date you'd like for the product to be dropped off at your home

3

Sit back and wait

Sit back, wait, and let us work our magic to make sure the highest quality product is delivered to your driveway.

From The Mouths of Seattle Folks

4.7
out of 5 based on 137 reviews
Google Reviews
Ryan Cully
Ryan Cully

First time going with this company for mulch and it was an efficient process from start to finish. Website was easy—I told them exactly where I wan...

Read full review

First time going with this company for mulch and it was an efficient process from start to finish. Website was easy—I told them exactly where I wanted the mulch put on my driveway, and it was delivered perfectly when I got home from work the next day. Best deal around when I compared it to competitors and I will definitely be becoming back.

Google Review
Lindsay Mangan
Lindsay Mangan

Wonderful experience! They put the mulch exactly where we wanted. This mulch spread very easily and didn’t have the usual “mulch smell.” We will de...

Read full review

Wonderful experience! They put the mulch exactly where we wanted. This mulch spread very easily and didn’t have the usual “mulch smell.” We will definitely use again!

Google Review

Complete Your Outdoor Project

Compost pairs well with a bark or arborist chip mulch layer on top of beds, since the compost feeds the soil while the mulch holds moisture through Seattle's dry summer stretch. For lawns, a light sand or topsoil blend can help level low spots before you topdress. If you are renovating a bed from scratch, ordering compost and mulch together saves a second delivery trip.

Seattle Soil Delivery
Seattle Mulch Delivery
Map of the compost delivery area around Seattle, Washington

Service area

Areas we deliver compost in Seattle, Washington

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Mulch Mound Pro Tip

Seattle's wet fall and winter mean compost left exposed can compact and go anaerobic if it sits in a pile too long before spreading. Spread within a few days of delivery, especially October through February. If you cannot get to it right away, keep the pile loose and uncovered rather than tarped tight, since trapped moisture without airflow is what causes the sour smell people complain about.

Mulch Mound Pro Tip

The most common mistake with compost here is over applying, thinking more will fix compacted glacial till faster. It does not. More than 3 inches tilled into beds can actually tie up nitrogen temporarily as soil microbes work through the extra organic matter. Stick to 1 inch on lawns and 2 to 3 inches in beds, then repeat next season if the soil still needs work.

Mulch Mound Pro Tip

Buying compost and bark mulch on the same delivery is worth planning around planting season rather than calendar season. Since compost sells through both spring and fall here, time your order to when you are actually planting or renovating beds, not to a specific month. That way the compost goes into the ground while it is still active rather than sitting in a pile losing nitrogen to the rain.

Building Better Soil in Seattle

Glacial till under most Seattle yards is dense and mineral heavy, low on organic matter and slow to drain in our wet months. Compost worked into that soil breaks up compaction and gives roots somewhere to actually spread. With zone 8b winters staying mild, fall applications keep working through the cool wet season instead of sitting dormant. This is why a lot of Seattle beds near older builds with true glacial till benefit more from compost than from mulch alone.

What Finished Compost Is

Finished compost is organic matter that has fully broken down into a dark, crumbly material with an earthy smell. It feeds soil life, improves structure, and helps beds hold water without staying soggy.

How Much to Apply

Work 1 to 2 inches into new beds, or topdress lawns with a quarter to half inch and rake it in. More is not better. Too thick a layer can smother roots instead of feeding them.

When to Apply

Spring and fall are both good windows. Spring applications feed the growing season ahead, and fall applications break down over winter so beds are ready at first thaw.

Frequently Asked Questions

Click a question to see the answer

Answer

Will compost fix Seattle's clay heavy glacial till soil?

It helps significantly but will not change the mineral structure overnight. Working 2 to 3 inches of compost into the top layer of glacial till improves drainage and gives roots organic matter to grow into. Repeat applications over a couple seasons build real structure. One application softens the surface, it does not transform the subsoil.

Answer

How much compost do I need for a 500 square foot bed?

At 2 inches deep, plan on roughly 3 cubic yards, since one cubic yard covers about 324 square feet at 1 inch, so at 2 inches that same yard covers about 162 square feet. For 500 square feet at 2 inches you would need just over 3 cubic yards, so most people round up to 3 or 3.5.

Answer

Is spring or fall better for applying compost in Seattle?

Both work, compost sells and gets used in both seasons here. Fall application lets the compost work into glacial till through our mild wet winters before spring planting. Spring application suits people topdressing lawns right before the growing season kicks in. Pick based on your project timeline, not a hard seasonal rule.

Answer

Where will the compost be dumped and do I need to be home?

You choose the drop spot, driveway, curb, or a staging area, when you schedule delivery at checkout. You do not need to be home, but the access point should be clear and reachable by our delivery truck. Let us know ahead if there are gate codes, narrow alleys, or other access issues common in older Seattle neighborhoods.

Answer

Should I get compost or mulch for my new garden bed?

They do different jobs. Compost amends the soil itself, adding organic matter and nutrients for glacial till that tends to be mineral heavy and compacted. Mulch sits on top to hold moisture and block weeds. Most new beds benefit from compost tilled in first, then mulch layered over it.

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