About this landscape rock

Smooth tumbled river rock, heavy enough to stay put in drainage runs and handsome enough for beds and borders.

We have always spread our own mulch for the past 24 years. This was our first time with the Mulch Mound - things I liked: they have online ordering and provide a digital receipt which means you can remember how much you ordered (I always forget for the next year!), they were o...

At a standard 2 to 3 inch install depth, one cubic yard of landscape rock covers roughly 162 square feet at the shallower end of that range. Measure your bed length and width first, then decide if you want the fuller 3 inch depth for better weed suppression, which will reduce your coverage per yard. Most Columbia front yard beds and foundation runs land somewhere between 2 and 5 cubic yards depending on how much of the lot you are converting.

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.

Columbia Landscape Rock Delivery

Columbia Landscape Rock Delivery

4.7
137 reviews
Regular price $132.00 per Yard
Regular price Sale price $132.00
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Minimum of 3 Yard
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Why order through Mulch Mound

The best local landscape rock, 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 landscape rock isn't the quantity or quality you ordered, we'll make it right.

About this landscape rock

Smooth tumbled river rock, heavy enough to stay put in drainage runs and handsome enough for beds and borders.

We have always spread our own mulch for the past 24 years. This was our first time with the Mulch Mound - things I liked: they have online ordering and provide a digital receipt which means you can remember how much you ordered (I always forget for the next year!), they were o...

At a standard 2 to 3 inch install depth, one cubic yard of landscape rock covers roughly 162 square feet at the shallower end of that range. Measure your bed length and width first, then decide if you want the fuller 3 inch depth for better weed suppression, which will reduce your coverage per yard. Most Columbia front yard beds and foundation runs land somewhere between 2 and 5 cubic yards depending on how much of the lot you are converting.

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.

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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 Columbia Folks

4.7
out of 5 based on 137 reviews
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Complete Your Outdoor Project

Landscape fabric goes down first if you want this to actually last a decade instead of turning into a weed patch by year three. Steel or aluminum edging keeps the rock contained and off the lawn, especially useful on Columbia's sloped lots. Some homeowners pair a rock border with mulch in the planting beds themselves, keeping rock for the groundcover zones and organic material where they actually want soil building to happen.

Mulch Mound Pro Tip

Lay landscape fabric before the rock goes down, not after, and overlap the seams by at least six inches since Columbia's silt loam shifts enough with freeze thaw cycles to open gaps in poorly seamed fabric within a year or two. Skipping fabric means rock sinks into the silt loam over a few seasons and becomes nearly impossible to fully remove later. This one step is what separates a rock bed that still looks sharp in year eight from one that needs a full redo.

Mulch Mound Pro Tip

The biggest mistake we see locally is putting rock right up against plants that want organic matter, like hydrangeas or hostas common in this area. Rock reflects heat and sheds water fast, starving nearby root zones of the moisture silt loam would normally hold. Keep rock for groundcover zones, downspout aprons, and foundation strips, and leave mulch or bare amended soil around anything you actually want to feed.

Mulch Mound Pro Tip

Because this is a one time install rather than an annual refresh like mulch, it pays to order slightly heavier on depth the first time, closer to 3 inches than 2, since a thin layer near the bluffs erodes faster in downspout runoff areas and gaps will show fabric within a season. Buying a bit more up front costs less over time than adding a thin top up later.

Decorative Stone in Columbia

Columbia sits on silt loam that holds water and can turn to soup after spring storms, which is exactly the kind of soil where rock outperforms organic mulch that compacts and washes downhill. With growing zone 7a giving you a long mild season and freeze thaw cycles running from around Oct 28 to Apr 7, rock does not break down or heave the way bark mulch can. A lot of homes near the bluffs use it around downspouts and foundation beds where silt loam tends to stay damp longest. It is also a practical choice for anyone tired of refreshing mulch every year while living in the shadow of the Kaskaskia Dragon.

What Landscape Rock Is

Landscape rock is stone chosen for how it looks as much as what it does. River rock is smooth and rounded, decomposed granite is fine and packs firm underfoot. Both are sold by the cubic yard for beds, borders, paths, and dry creek beds.

River Rock vs Decomposed Granite

River rock stays loose and rolls, so it suits beds, borders, and drainage runs where it can sit in place. Decomposed granite compacts into a firm surface, so it suits paths, patios, and anywhere you will walk or roll a wheelbarrow.

Depth and Coverage

Spread river rock 2 to 3 inches deep over landscape fabric so it stays put and weeds stay down. Lay decomposed granite 3 to 4 inches deep, wet it, and compact it in lifts for a surface that sheds water instead of rutting.

Frequently Asked Questions

Click a question to see the answer

Answer

How long does landscape rock actually last in Columbia before it needs replacing?

Landscape rock does not break down like mulch, so with fabric underneath it can last a decade or more without needing a refresh. What does change over time is settling and occasional weed growth in the seams, so plan on light maintenance rather than replacement. This is why it is worth getting the depth and fabric right on the first install.

Answer

How many cubic yards do I need for a 300 square foot bed?

At a 2 inch depth, one cubic yard covers about 162 square feet, so a 300 square foot bed needs just under 2 cubic yards. If you want the fuller 3 inch depth for better coverage and weed control, plan closer to 3 cubic yards for the same area. Rounding up slightly avoids a second delivery.

Answer

Is spring or fall a better time to install rock in Columbia?

Either works since rock is not weather sensitive like planting, but many Columbia homeowners prefer installing before the Apr 7 last frost date so beds look finished heading into the growing season. Fall installs after the heat breaks also work well since the ground is easier to prep and fabric lays flatter in cooler temperatures.

Answer

Where will the truck place the rock and do I need to prepare anything?

The load gets dropped at a hard, accessible spot you choose, typically the driveway or curb, since dump trucks need firm level ground and cannot cross soft lawn or silt loam that is still wet from rain. Clear the area beforehand and plan your wheelbarrow path to the bed so you are not moving rock further than necessary.

Answer

Should I choose landscape rock or mulch for my front bed?

Rock makes sense for foundation strips, downspout areas, and low maintenance groundcover zones where you do not want an annual refresh. Mulch is the better call anywhere you want soil building around plants, since Columbia's silt loam benefits from organic matter breaking down over time. Many yards here use both, rock in the permanent zones and mulch where things are actually growing.

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