How To Clean Lichen Off Wooden Garden Furniture

How to Clean Lichen Off Wooden Garden Furniture

Lichen, a composite organism of algae and fungi, can accumulate on wooden garden furniture over time, giving it an unsightly and aged appearance. If left unchecked, lichen can damage the wood's surface, making it more susceptible to rot. Fortunately, cleaning lichen from wooden furniture is a relatively simple process that involves a few basic steps.

Preparation

Before beginning the cleaning process, remove any loose debris or dirt from the furniture with a soft brush or cloth. Protect surrounding plants and surfaces from bleach and other chemicals by covering them with plastic or tarp.

Bleach Solution

Mix a solution of 1 part chlorine bleach to 10 parts water in a bucket or sprayer. Use a soft brush or cloth to apply the solution to the lichen-covered areas, working in small sections at a time. Allow the solution to sit for 15-20 minutes to penetrate the lichen and kill the organisms.

Pressure Washing

After the bleach solution has had time to work, use a pressure washer to gently remove the softened lichen. Start with a low pressure setting and gradually increase it until the lichen is dislodged. Avoid using a high-pressure setting, as it can damage the wood's surface.

Neutralization

To neutralize any remaining bleach, rinse the furniture thoroughly with clear water. Use a soft cloth or sponge to wipe away any residual bleach or solution. Allow the furniture to dry completely before use.

Maintenance

To prevent lichen from returning in the future, regularly clean your wooden furniture with a mild soap solution and water. Dry the furniture thoroughly after cleaning to avoid moisture build-up. Additionally, try to keep your furniture out of shaded areas where lichen growth is more common.

Additional Tips

For stubborn lichen, you can apply a stronger bleach solution of up to 1 part bleach to 5 parts water. However, test this solution on a small, inconspicuous area first to ensure it does not damage the wood. Use a soft brush and avoid allowing the solution to sit for extended periods.

If you are concerned about using bleach, you can try alternative cleaning methods such as rubbing alcohol, vinegar, or commercial lichen removers. Always test these alternative solutions on a small area first before applying them to the entire surface.