How to Get Rid of Algae & Moss in Paver Cracks

Although algae and moss serve a purpose in certain environments, they are not beneficial when growing between paver stones. Moisture retained between pavers provides an environment conducive to the growth of algae and moss. But these living organisms can make pavers slippery and cause injury. Removing algae and moss between pavers isn't difficult, but supplies and methods that won't damage the natural stone must be employed.

Flathead screwdriver
Stiff-bristled brush
Broom
Dustpan
Bucket
1/2 cup ammonia
Hose

Instructions

- 1
  Insert the tip of a flathead screwdriver between the paver stones. Dig the moss out of the cracks with the screwdriver.
- 2
  Scrub between the cracks with a stiff-bristled brush to remove any remain bits of moss. Sweep up the removed moss with a broom and dustpan.
- 3
  Pour 1 gallon warm water into a bucket. Add 1/2 cup of ammonia.
- 4
  Dip a scrub brush into the diluted ammonia solution. Scrub the surface of the paver stones to kill and remove algae stains. Rinse the scrub brush as the algae is removed. Apply more diluted ammonia and continue to scrub the pavers.
- 5
  Rinse the paver stones with water from a garden hose. Allow the surface to air-dry completely.

How to Kill Boxwood Beetles

Milorganite to Repel Deer

Pests, Weeds & Problems