Regularly clean patios using a broom or lightweight blower to clear dirt and leaves. Wet leaves may stain natural stone, so prevent leaf clumps on patios and walls. Use a hose to clean walls and stone patios without joint damage; avoid strong water blasts on dry-laid patio joints.
To remove stains from natural stone, use gentle liquid detergent or dish soap with a plastic scrub brush. Rinse with a garden hose afterward to remove any residue. If needed, try an ammonia solution (1/2 cup ammonia in 1 gallon of water) while wearing protective gear. Rinse thoroughly between cleaning attempts to prevent chemical mixing.your yard.
To remove moss or algae from stone, mix 1/2 cup bleach with 1 gallon water in a sprayer, apply on the surface, let sit for 10 minutes, scrub tough spots with a plastic brush, and rinse. Wear protective gear and keep the solution on the stone. Soft bristle brushes work well; avoid wire brushes. For tougher cleaning, consider professional help with high-pressure sprayers or acidic cleaners.
– Refrain from using ice melt on new concrete or mortared stone under 12 months old; it weakens them.
– Never apply rock salt (sodium chloride) on natural stone, concrete, or clay products.
– Use deicers moderately and remove residue during thaws and in spring by washing with water.
Sealing can help to protect stone, clay and concrete pavers, brick and concrete. The need for a sealer and the frequency of sealing can vary depending on your situation. Please contact your American Gardens consultant or project manager to discuss. We recommend any sealing be done by an experienced professional.