Sold by the yard

Black Lava Rock

Name: Black Lava Rock
Brand: Hello Gravel
SKU: rockos:335
Availability: InStock

Lightweight 3/4–1 1/2" black volcanic rock for beds

Black lava rock is crushed volcanic stone full of tiny air pockets, which keeps it light and easy to spread. It goes down like mulch but doesn't rot, fade like dye, or need replacing every year. The dark charcoal color sets off green plants and light hardscape, so it's popular in modern beds, around succulents, and along borders. Pieces run about 3/4 to 1 1/2 inch. Size varies slightly and shade varies by location.

Black lava rock is lightweight, porous volcanic stone about 3/4 to 1 1/2 inch in a dark charcoal color, not dyed mulch that fades.

Also called: black lava stone, black cinder, black volcanic rock, black scoria, black lava gravel, charcoal lava rock.

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4.9· 1,919 verified reviews11,821 deliveries · 50 states

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Product Specifications

Material: Volcanic rock (cinder)
Size: 3/4"–1 1/2" (varies slightly by location)
Shape: Porous, irregular
Weight: ~900 lbs per cubic yard
Coverage (3" deep): ~105 sq ft per yard
Color: Charcoal to black, shade varies by location
Minimum Order: 1 yard
Delivery: Dump truck, directly to your location

Best For

Modern bedsSucculent gardensBed bordersLow-water landscapes

“We chose a delivery date. The driver dropped it exactly where I asked. I had never ordered gravel in my life.”

Kelly O’Brien · 5★ · one of 1,919 verified reviews

Why Choose This Product

Lasts for Years

Doesn't rot, decompose, or need yearly topping off.

Natural Black

Dark stone color that doesn't come from dye.

Drains Well

Porous stone lets water straight through to the roots.

Delivery Included

The price you see includes dump-truck delivery to your site.

How Delivery Works

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Delivered to Your Door

We deliver right to your driveway or job site.

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Calculate Amount

Use our calculator to find exactly how much you need.

Schedule Delivery

Pick a delivery date that works for your project timeline.

Delivered to Your Door

We deliver right to your driveway or job site.

Material calculator

Estimate how much black lava rock you need

Tell us the area and depth, and we'll work out the yards plus your delivered price.

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Current selection

Black Lava Rock

MaterialVolcanic rock (cinder)

Size3/4"–1 1/2" (varies slightly by location)

ShapePorous, irregular

Weight~900 lbs per cubic yard

Coverage (3" deep)~105 sq ft per yard

ColorCharcoal to black, shade varies by location

Minimum Order1 yard

DeliveryDump truck, directly to your location

Texture—

Recommended Depth—

Coverage (2" deep)—

Best For

Modern bedsSucculent gardensBed bordersLow-water landscapes

Shredded Black Mulch

MaterialShredded hardwood

Size—

Shape—

Weight~800 lbs per cubic yard

Coverage (3" deep)~100 sq ft per yard

Color—

Minimum Order1 yard

DeliveryDump truck, directly to your location

TextureDouble-shredded

Recommended Depth3"

Coverage (2" deep)—

Best For

Flower bedsTree ringsLandscapingWeed suppression

River Rock

MaterialNatural river stone

SizeAbout 1–3" (varies by location)

ShapeRounded / smooth

Weight~2,700 lbs per cubic yard

Coverage (3" deep)—

ColorVaries depending on location

Minimum Order1 ton

DeliveryDump truck, directly to your location

Texture—

Recommended Depth—

Coverage (2" deep)~100 sq ft per ton

Best For

LandscapingDry creek bedsWater featuresGround cover

Black lava rock gives you a dark bed cover without the yearly refresh. Pick shredded black mulch if you want to feed the soil, or river rock for a heavier, smooth stone.

What customers say

4.92(203 reviews)

See all 203 reviews →

What customers say

Hello Gravel excels at smooth ordering and responsive communication, though delivery consistency and accuracy issues concern some customers.

Most mentioned

Easy ordering processResponsive communicationOn-time delivery

5★

4★

3★

2★

1★

Pamela D.

3 months ago

Verified

Hello Gravel cared more about the structural integrity of my house than they did about making the sale. I was trying to place an order to buy dirt to place between a retaining wall and footings at the base of columns that hold up my house. They could have just sold me anything for profit, but they told me to go get the advice of a structural engineer, knowing that the structural engineer would probably order the dirt himself and possibly from another company. That’s integrity.

July 16, 2026

Eric F.

3 months ago

Verified

Flawless ordering, logistics and delivery

July 16, 2026

Kimberly B.

3 months ago

Verified

Easy to work with, order is filled right away, even same day. Friendly.

July 15, 2026

Josie O.

3 months ago

Verified

I was very impressed with the communication and how quickly I could have the pea gravel delivered. The website is easy to navigate also.

July 8, 2026

Muhammad M.

3 months ago

Verified

It was ordered and delivered smoothly due to the great help from the staff ( Tereza ).

July 8, 2026

Muhammad M.

3 months ago

Verified

It was ordered and delivered smoothly by the help of the staff ( Tereza ).

July 8, 2026

See all 203 reviews →

Frequently Asked Questions

Use the calculator with your length, width, and depth. A 2 to 3 inch layer gives full coverage. One cubic yard covers about 105 square feet at 3 inches deep.

Lava rock weighs about a third as much as most gravel. Selling it by volume means you pay for coverage, not weight.

It's a natural dark charcoal to black. Some pieces show a brownish or reddish tint, and the surface looks lighter when dry and darker when wet. Shade varies by location.

Dark stone warms up in full sun, more than light-colored rock. That's fine for shrubs, succulents, and heat-loving plants. Keep a little space around the stems of tender plants.

It's rough and porous, so wear gloves when you spread it. It's not a good fit for bare-foot areas, play areas, or dog runs.

By dump truck, straight to your property. The driver dumps it in one pile where you choose. Pick a firm, level spot the truck can reach, clear of cars and overhead wires. Delivery is included in the price you see.

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Black Lava Rock

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