Things You'll Need
Garden hose or pressure washer
For extra-dirty white rocks, try soaking them in a solution of 1/4 cup bleach to 5 gallons of water for a day or two before replacing them in the flower bed.
Do not use bleach near ponds that contain fish. Keep undiluted vinegar away from plants.
White rocks gleam in the landscape, providing a clean, bright contrast to fresh greens and rich browns. White goes with anything -- but it also gets dirty easily, and this is as true in the garden as it for your clothes. And although you can't toss your white landscape rocks into the washing machine to brighten them up, you can reach for something else that might be on your laundry shelf, or in your kitchen, to help you clean them.
Sweep away any loose dirt with an outdoor broom.
Pour full-strength household vinegar over moss and other small plants, if you want to remove them from the rock. Let it sit for at least five minutes.
Scrub the dead moss and other small plants off of the rock with a stiff wire brush.
Rinse the rock with a hose. Use a high-pressure nozzle for best results, or use a pressure washer, if you have one.
Mix 3/4 cup of bleach with 1 gallon of water in a bucket, and use that solution to saturate any remaining moss or stains on the rock.
Let the mixture sit for 10 minutes, and then use the scrub brush again. Rinse with the hose or pressure washer and let dry.
Small Landscape Rocks
Hose the rocks down to get rid of as much loose dirt and debris as possible.
Scoop the rocks up with a shovel and dump them onto a gravel screen laid over a wheelbarrow or bucket.
Hose the rocks down while they are on the screen, and then replace them in the flower bed.
April Sanders is a writer, teacher and the mother of three boys. Raised on an organic farm, she is an avid gardener and believes that good growth starts with a rich, supportive foundation -- a philosophy that serves her well in both gardening and teaching. Sanders has written for Nickelodeon, Warner Brothers, Smarted Balanced, PARCC and others.