How to Get Rid of Moss in Cracks
- 1). Mix one part bleach and nine parts water in a bucket.
- 2). Apply about 1 tbsp. of the bleach mixture to a small, hidden area to test whether it discolors or damages the material.
- 3). Pour the bleach solution onto the moss, taking care not to get it on other plants. Let the bleach solution sit for 15 to 20 minutes.
- 4). Use a brush to scrub off the moss. It should come off easily after the bleach kills it. The bleach also kills any part of the moss you can't remove, preventing future regrowth.
- 1). Mix potassium salts concentrate with water according to the product label instructions, if necessary. Also known as soap salts, potassium salts are available in garden centers.
- 2). Pour the potassium salts solution into a spray bottle. You can also purchase a ready-to-use formulation that is already diluted and placed in a spray bottle from garden centers.
- 3). Spray the potassium salts to a small, hidden area to test for damage.
- 4). Spray the potassium salts solution to the moss to kill it if the solution doesn't damage the building material. Leave the solution on the moss for the prescribed period of time as indicated on the product label.
- 5). Scrub the moss off the cracks to remove them.