Serving Seattle & Surrounding Areas

Mercer Island, Washington's Landscape Supply Company

We make landscaping projects simple, reliable, and stress-free.

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How It Works

Getting started is easy — just follow these simple steps

1

Choose your product

Make sure you adjust the quantity to your home's needs. You can use our calculator to estimate how much you'll need.

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.

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Complete Your Mercer Island Outdoor Project

We’ve got you covered with our full line of landscape supply products, from premium mulch and quality soil to decorative stone, helping you create a cohesive, professional landscape that enhances your property for years to come.

Mulch Mound Pro Tip

Fall planting gives Mercer Island trees and shrubs a significant advantage over spring installation in most situations. Roots establish during cool weather while tops remain dormant, building extensive underground systems before summer heat demands peak performance from foliage. Spring-planted specimens spend their entire first season playing catch-up with stressed root systems.

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Mulch Mound Pro Tip

Mercer Island's sloped terrain and glacial till soils create serious runoff challenges during the region's 40-inch annual rainfall. Installing French drains or gravel-filled drainage swales before adding new planting beds prevents the wintertime waterlogging that kills roots over several seasons. Grade beds so water moves away from foundations, and incorporate coarse crushed rock into chronically wet low spots to keep soil from becoming perpetually saturated.

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Delivering to Mercer Island, Washington

Primary ZIP: 98040
Mulch Mound Pro Tip

Maintaining a consistent 3-inch mulch layer throughout Mercer Island beds dramatically reduces the watering burden during dry summers. Fir bark or wood chip mulch breaks down slowly, moderating soil temperature and feeding soil microbes as it decomposes. Pull mulch back a few inches from plant crowns to prevent crown rot, which is a persistent issue in the Pacific Northwest's cool, moist shoulder seasons between the November and March frost dates.

Frequently Asked Questions

Click a question to see the answer

Answer

What type of bulk material works best for addressing drainage problems in Mercer Island yards?

Crushed drain rock, typically three-quarter inch angular, is the go-to solution for drainage problems on Mercer Island. Its angular edges lock together while still allowing water to pass freely through glacial till subsoil. Use it in French drain trenches, under downspout extensions, and mixed into chronically wet planting areas to break up compacted subsoil layers.

Answer

How much topsoil should I add when building a new planting bed over Mercer Island's native soil?

Add four to six inches of quality topsoil to new beds over Mercer Island's glacial till base, then blend the layers by tilling two to three inches into the native soil below. This prevents a hard transition zone where roots stall. Incorporating compost at the same time improves long-term structure and gives zone 8b plants a far stronger start than topsoil alone.

Answer

Is bark mulch or wood chips better for Mercer Island's wet winters?

Medium-grind fir bark mulch generally outperforms raw wood chips in Mercer Island's wet winters because it resists matting and compaction better. A three-inch layer insulates roots through November freeze events without trapping excess moisture against plant crowns. Avoid fine-texture mulches in low-lying areas where they become waterlogged and can create anaerobic conditions harmful to roots.

Get Started with Mulch mound Today

Smart Mercer Island homeowners choose bulk delivery for their landscaping projects. Our Seattle-area network means fast, reliable delivery of premium landscape materials. Landscaping made simple: choose, order, and we deliver to Mercer Island.

See what other options Mulch Mound offers for landscape supply delivery in Seattle