Boulders

Landscape boulders are a timeless, natural element used to create structure, focal points, and visual impact in outdoor spaces. Commonly installed for garden accents, retaining walls, water features, entry monuments, and erosion control, boulders provide long-lasting durability and a bold, organic look that blends seamlessly into any landscape design. Earth Stone Rock supplies a wide range of natural boulders in various sizes, colors, and textures, ideal for both residential and commercial projects, available for yard pickup or delivery throughout the United States.

Buying boulders: landscape boulders for sale by the ton, by the pound, or as individual specimen pieces. Boulders are the one material you do not size by square footage, because you place them rather than cover with them. Cost depends on size, stone type, and how many you need set. Larger 5 foot and up boulders and specimen rock are quoted individually. Read how to choose boulders for landscaping and landscaping with boulders, or request a quote for delivery and placement.

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Need help choosing? Browse project ideas, explore colors, or read our buying guide.

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Common Uses for Landscape Boulders

From specimen focal points to retaining walls — see where boulders carry a landscape.

Specimen Boulders as Focal Points

Large feature boulders (30" and up) anchor a landscape with one statement piece. Place at front yard entries, near pools, or as the centerpiece of a planting bed where the form, color, and texture of the stone do the visual work.

Shop Specimen Boulders How to Choose a Boulder

Garden Accent Boulders

Mid-size boulders in the 18" to 30" range break up flat planting beds and add structure between perennials and shrubs. Group three or five together at varying heights for a natural arrangement that looks like it grew there.

Shop Accent Boulders Placement Tips

Water Feature Boulders

Boulders define ponds, dry creek beds, and waterfall surrounds. Mix sizes from 12" cobble up to 24"+ accents along the banks for the layered look of a natural creek. Larger boulders set the path; smaller stones fill the gaps.

Shop Water Feature Boulders Dry Creek Layout Tips

Retaining Wall & Slope Boulders

Large boulders (24" and up) stabilize slopes and build natural-looking retaining walls without the engineered look of block walls. Stack with the heaviest pieces at the base; backfill with gravel for drainage.

Shop Large Boulders Wall Building Basics

Bed Edging & Natural Borders

Smaller boulders in the 8" to 18" range edge planting beds, define walkways, and separate lawn from gravel without the formal look of poured concrete or pre-cast block. Spaced or tightly fitted, they read as part of the landscape.

Shop Edging Boulders Edging Ideas

Drought-Tolerant Landscape Boulders

Boulders pair naturally with succulents, agave, and California native plants. Use them to anchor a low-water design that needs no mowing and minimal irrigation — pure structure that holds the landscape together year-round.

Shop Landscape Boulders Xeriscape Ideas

Landscape Boulders Buying Guide

Choose the right boulder for your project, learn placement tips, and find the perfect stones for your landscape.

Landscape boulders are the structural anchors of a great outdoor design — single stones that hold a planting bed together, define a water feature, edge a driveway, or stand alone as a sculptural focal point. Each boulder is sold individually, so you can compose exactly the arrangement your site needs.

Browse the full boulder collection across six size classes, from 8" cobble up to specimen pieces over three feet. Need help picking? Send us photos of your site and we'll recommend sizes and placement.

Quick Links

Shop All Boulders Decomposed Granite River Rock Pea Gravel

Boulder Sizes vs Use Cases

Material	Best For	Compaction	Drainage	Cost
Specimen Boulders (30"+)	Statement focal points, entries, pool surrounds	N/A (placed individually)	N/A	$$$$
Accent Boulders (18–30")	Garden beds, xeriscape, around feature plants	N/A	N/A	$$$
Cobble & Edging (8–18")	Bed borders, dry creek banks, edging	N/A	N/A	$$
River Rock (companion)	Filling between boulders, dry creek beds	Poor (decorative)	Excellent	$$

Larger boulders typically require equipment to place. See our drainage rock and base materials for what goes underneath.

What Landscapers Know

Group in odd numbers. Three or five boulders at varied heights read as a natural cluster. Pairs and even rows look manufactured.
Bury one-third of the boulder. Setting the bottom 30 to 40 percent into the soil makes it look like the stone was always there, not dropped on top.
Match the local geology. Pick boulder colors and types that complement existing stone on your property — the eye recognizes when one piece feels imported.
Plan equipment access. Anything over 24" typically needs a skid steer or excavator to place. Check gate widths and overhead clearances before delivery day.
Place water features at the lowest grade. Dry creek beds and pond surrounds need to sit where water would naturally collect, or the design fights the landscape.
Photograph your site first. Send photos with measurements when you order — we can recommend sizes that fit your space and help with access logistics.

Need Help?

(800) 215-7372

FAQ

What boulder sizes do you carry?

Six size classes: 8"–12", 12"–18", 18"–24", 24"–30", 30"–36", and Specimen (36" and up). Each size class is sold individually. Browse the boulder collection to see what's in stock.

How are boulders measured and priced?

Measured by their longest dimension. Pricing is per individual boulder and scales with size — a 30" specimen costs more than a 12" cobble both because of the stone itself and because larger boulders need equipment to move and place.

How are boulders delivered?

Smaller cobble (8"–18") can ride in a regular pickup or trailer. Anything 24" and up typically requires a flatbed or boom truck. We coordinate based on access — call (800) 215-7372 with your zip and gate widths.

Do I need equipment to place them?

Cobble up to about 18" can usually be hand-placed by two people. Anything 24" and larger generally needs a skid steer, mini-excavator, or boom truck. We can recommend local equipment rental if you don't have your own.

Can you help me pick the right boulders?

Yes — send photos of your site with rough measurements to our team and we'll suggest sizes and quantities. For specimen pieces, you're welcome to visit the yard and hand-pick the stones.

Find the Right Boulders for Your Project

Six size classes from cobble to specimen. Pick at the yard or have them delivered and set. Photo consultation available — send us your site and we'll suggest sizes that work.

Shop Boulders

Landscape boulders for sale by the ton, the pound, or the piece

Boulders are the one landscape material you do not size by square footage, because you place them rather than cover ground with them. Smaller accent boulders are sold by the ton or by the pound, where the cart quantity is the pound count. Larger feature stone and specimen pieces are priced individually, since each one is different.

Cost comes down to three things: the size of the stone, the type of rock, and whether it needs equipment to set. A single 3 foot boulder can weigh close to a ton on its own, so delivery and placement often matter more to the final number than the stone itself. Anything from about 5 feet up, and any specimen piece, is quoted individually.

Choosing and placing boulders

Pick the size to the setting. Entry monuments and water features want fewer, larger stones. Garden accents and border work read better with a mix of sizes in odd-numbered groupings, partially buried so they look settled rather than dropped. Our guides on how to choose boulders for landscaping and landscaping with boulders cover sizing, spacing, and setting depth.

For erosion control and slope work, see rip rap, which is sized to water flow rather than appearance, and read our rip rap guide. For walls, compare wall rock and retaining wall block. Pool and water-feature stone is in pool and water boulders. To price delivery and placement, request a quote.

Delivery & Pickup

Boulders Delivery Across California & the Southwest

Order boulders for pickup at our Central Valley or Antelope Valley yards, or bulk delivery throughout California — plus Nevada, Arizona, and Colorado. Tell us your ZIP and project and we will quote a delivered price.

Central Valley Visalia Yard 30617 Co Hwy J25, Goshen, CA 93227 Yard details › Antelope Valley Rosamond Yard 1387 Sierra Hwy, Rosamond, CA 93560 Yard details ›

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