How to Clean Your Decorative Rocks Properly

Cleaning Decorative Rocks

Homeowners usually install landscaping rocks with the intention of limiting the maintenance required from wood edging materials or organic mulches. It is widely regarded as a superior option to the landscaping fabric that’s typically used on garden beds.

There are many different types of landscaping rocks and boulders, and they are all constantly exposed to the elements in any garden setting. Over time, this decorative landscape material, especially white landscaping rocks can become discoloured with dirt and debris that may alter the stone’s original colour and cleaning may be required to brighten them up and increase the exterior appeal of your home. 

Things You Will Need

  • Dish Soap
  • Biodegradable Cleaner
  • Laundry Detergent
  • Bucket
  • Nylon Scrub Brush
  • Garden Hose
  • Leaf Blower
  • Push Broom
  • Power Washer
  • Baking Soda or Denture Cleaner
  • Toothbrush
  • Bleach

2 Ways to Clean Landscaping Rocks

Cleaning Small Landscaping Rocks

If you have small landscaping rocks, gather and scrub the rocks with soapy water made with laundry detergent or dish soap. Next, put the rocks in a sink, wheelbarrow or bucket and add enough water to cover them completely. Add ¼ cup of bleach and stir. Leave the rocks to soak for about 2 days. 

If dirt, grit, or stains still remain on the rocks, apply either denture cleaner or a paste made from baking soda and water and scrub them with a small nylon bristle brush or a toothbrush. Rinse well and let them dry completely before replacing them in the garden.

Cleaning Medium to Large Landscaping Rocks

If you have medium to large landscaping rocks, power wash them using a power washer, starting with the lowest setting.  Start with plain water at high pressure and spray the rocks with water. If you add a cleaner to the power washer, use one that’s biodegradable and safe for plants. 

Power washing is a less labour-intensive way to clean the surface of the rocks, but it is important to be careful not to chip the rocks in the process.

Cleaning Decorative Rocks

3 Ways to Clean Boulder Rocks

Dust and Debris Removal

If you have medium-sized to large boulders, first move them to a bigger space and away from the yard, such as the driveway. This makes it easier to clean them more thoroughly. Next, use the leaf blower to blow away the lighter pieces of debris such as leaves and a push broom to brush away smaller rocks vigorously off the boulder’s surface.


Take a bucket of water, squirt some laundry detergent and use the nylon scrub brush to scrub the boulder rocks gently for a quick spruce up. If the boulder rocks have stubborn stains and require a continuous flow of water with the scrubbing, you should consider using a garden hose to wash them clean. Alternatively, use a power washer for this.


When it comes to rinsing, you have the option of using plain water or adding a cleaner to it, such as a biodegradable cleaner that not only effectively removes strong stains and dirt patches but is also safe for plants. Once you are done scrubbing the boulders, ensure that you thoroughly bathe them with water. Be careful not to chip them in the process.

Final Thoughts

Landscape rocks offer several benefits when it comes to decorating your outdoor space. However, to ensure that they always look their best, just like the rest of your landscaped garden, it is important to maintain them.

Landscape rocks are an integral part of your outdoor space, which is why you should clean them using the methods outlined here. However, ensure that you only use natural cleaning products that are safe for you, your family, and the environment.

Buy Landscaping Rocks

You don’t have to go out into the wilderness to find landscaping rocks and boulders for your backyard. Just visit our website to check out our large supply of landscaping rocks and boulders. If you have any questions or for more information call Rokworx today at the number provided.

Please call us today for more information on 0407 456 045 or leave us a message.


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