How to clean rocks from rocks Use a broom to remove loose dirt, rinse with a garden hose to wash mud, rub rocks with vinegar and a scrub brush to remove algae and moss, rinse rocks again after scrubbing them with a garden hose. You can start by removing fallen leaves and the debris that surrounds them, either by hand or with a leaf blower. Then, scrub the rocks thoroughly with a broom or garden brush and water them with a hose. A drop or two of dish soap will help with any persistent greasy stain.
Just be sure to rinse the rocks thoroughly afterwards, Rocks Stones experts advise %26 Pebbles (opens in a new tab), to avoid leaving unsightly marks.