Quick answer: To install landscape rock, clear and level the area, set a firm graded base, add edging to contain the stone, decide on a weed barrier, then spread rock at a consistent two to three inch depth. The prep work is what keeps the finished surface even, stable, and low on weeds.
Installing landscape rock is one of the most rewarding weekend projects for a desert yard, and it is very doable yourself with a little planning. The rock is the easy part. The steps before you spread it, clearing, grading, edging, and setting a base, are what separate a yard that looks clean for years from one that turns patchy and weedy. Here is how to do it right.
What you need before you start
Gather your materials and a few basic tools so you are not stopping mid project:
- Decorative rock or gravel in the color and size you want, which you can compare in our decorative rock collection.
- Base material for pathways and high traffic areas, available in our bulk sands and soils.
- Edging to contain the rock, such as steel, paver, or trench edging.
- Optional landscape fabric for plant free zones.
- A rake, a flat shovel, a wheelbarrow, a hand tamper or plate compactor, and work gloves.
To estimate how much rock to buy, measure your area and use our landscape rock coverage guide, and if you are unsure which size fits the job, our post on what size gravel to use for different projects helps.
Step by step: installing landscape rock
- Clear the area completely, removing grass, weeds, roots, and any old material so nothing regrows underneath.
- Grade the surface so it is level or gently sloped for drainage, and firm it with a tamper or compactor.
- Install edging around the borders to keep the rock contained and to create a crisp line.
- Decide on a weed barrier, laying quality fabric in plant free zones or relying on rock depth in others.
- Add and compact a base layer in pathways and high traffic areas so the surface stays firm.
- Spread the decorative rock and rake it to a consistent two to three inch depth across the whole area.
- Rinse the rock lightly to wash off dust and settle it into place for a finished look.
Do you need a weed barrier under the rock?
This is the most common question, and the answer is: it depends on the area. Woven landscape fabric can block weeds coming up from the soil and help keep rock from sinking into dirt, which is useful in plant free zones. It is not a permanent fix on its own, because most weeds actually sprout in the dust and debris that collect on top of the rock over time. Around living plants, many designs skip fabric so the soil can breathe. A firm base and proper depth matter just as much as any barrier.
How deep should the rock be?
For most decorative ground cover, aim for about two to three inches. That depth fully covers the soil, blocks the sunlight weed seeds need, and gives the surface a full, even look. Thinner than that and you invite bare spots and weeds. Larger rock needs a bit more depth so no soil shows through the gaps. Keeping the depth consistent, and topping up thin spots over time, is what keeps a rock yard looking sharp.
Common mistakes to avoid
- Skipping the clearing step, so old weeds and roots grow back through the rock.
- Not grading for drainage, which lets water pool or wash the rock toward low spots.
- Leaving out edging, so the rock spreads into grass, beds, and pathways.
- Spreading the rock too thin, which shows soil and invites weeds.
- Skipping a base under pathways, so the rock sinks into soft soil and the depth disappears.
Keeping it looking new
Once your rock is installed, upkeep is light. A stable base prevents shifting, which our guide on keeping landscape rock from shifting or sinking covers, and occasional cleaning keeps the color fresh, as explained in our post on how to clean and maintain decorative rock. The full helpful landscaping tips blog has more seasonal tips.
Frequently Asked Questions
How deep should landscape rock be when you install it?
About two to three inches for most ground cover. That depth covers the soil, blocks the sunlight weeds need, and gives a full, even look. Larger rock needs slightly more depth to hide the ground beneath it.
Do I need to remove the grass before installing rock?
Yes. Removing grass, weeds, and roots first prevents them from growing back up through the rock. Skipping this step is one of the most common reasons a rock yard turns weedy.
Should I put anything under landscape rock?
A firm, graded base helps in pathways and high traffic areas, and woven fabric is useful in plant free zones. Around living plants, many installs skip fabric. Proper depth and a clean base matter as much as any barrier.
Can I install landscape rock myself?
Yes. Rock installation is a very doable homeowner project. The keys are thorough clearing, level grading, solid edging, and consistent depth. We can supply the rock, base, and guidance you need.
Get everything you need to install your rock
Parsons Rocks supplies the decorative rock, base materials, and know how to get your project done right. Browse our decorative rock collection and the full selection of landscape products, or call 702.508.7628 and reach us through our contact page for help estimating what your yard needs.