How To Kill Moss And Leave Your Lawn Attractive

Kill Moss and Leave Your Lawn Attractive

Last Updated on August 15, 2023 By Emma W. Thomas

Kill moss effectively and maintain an attractive lawn by:

  1. Raking and dethatching to improve drainage.
  2. Applying moss-killing products containing ferrous sulfate or potassium salts.
  3. Adjusting soil pH with lime to discourage moss growth.
  4. Regularly aerating and overseeding for a lush, moss-free lawn.

How To Kill Moss And Leave Your Lawn Attractive

1. Using Dish Soap

You can use suitable dish soap to kill moss from your lawn. You will need the following items;

1. Lawn spreader

2. Dish soap

3. Garden sprayer

4. Rake

5. Water


1. Place two to four ounces of suitable dish soap into a gallon of water

2. Use a squirt bottle to spray the soap solution on the patches of moss

3. If there are large areas with moss, use a garden sprayer to spray the mixture until runoff.

For every 1000-square feet of lawn, use 4-ounces of dish soap in 2-gallons of water. Ensure that the grass is moist when applying and that it will not rain within 24-hours of application.

4. Once the dead moss turns yellow or brown, rake it up. Repeat the treatment if more moss appears until you don’t see it again

2. Using Vinegar

You can use vinegar as a pesticide or herbicide since it is inexpensive and environmental-safe compared to chemical products. According to USDA, vinegar that is 5-10% concentrated effectively eliminates weeds within the first two weeks of their life. Older plants require a higher concentration of vinegar to be eradicated.

You can use either white or apple cider vinegar to eliminate moss and prevent its future growth.


1. Spray full-strength vinegar onto moss directly. You can use household vinegar for newer moss growth or industrial-strength vinegar for older plants

2. Allow the vinegar to stand for 5-10 minutes

3. Scrape off the moss with a putty knife if the surface allows, to remove it

4. Scrub the surface and rinse off the vinegar and any remaining plants. If necessary, repeat the procedure


1. Mix 2-table spoons of dish soap, 1/4-cup of salt, and 4-cups of vinegar

2. Place the mixture into a spray bottle or sprayer

3. Spray the mixture on the moss until saturation and let it sit for a few minutes. Remove the moss

3. Using Iron Sulfate (sulfate of iron)

You can also kill moss using a chemical known as iron sulfate. You can spread the chemical as a dry powder, use a watering can, or spray directly on the moss. Spreading the powder by hand may produce patches. Iron sulfate turns moss into black within20-minutes, and it is easy to know whether you missed some spots.


1. Add three heaped teaspoons of iron sulfate to one liter of water. You can increase the volume depending on the area covered with moss. To avoid lumpiness, place the chemical in the sprayer first, add a few cups of warm water, and shake until it dissolves.

2. Top up the sprayer with warm but not boiling water and shake well to mix thoroughly. You can filter the solution or decant it after mixing to prevent your sprayer from clogging.

Mark your lawn in strips to know the parts you have covered. You can wrap two pieces of string onto rebar or metal rods. Mark out a strip that is a yard wide and move the strings once you are through spraying

3. Wear goggles before spraying to prevent the spray from getting into your eyes. It is advisable to apply the solution on a windless day. If you are using a knapsack sprayer, you can operate the handle and re-pump when the spray pressure starts reducing.

If, on the other hand, you are using a gallon sprayer, pump until the safety valves operate or the recommended number of times.

4. Spray within the marked strips and move the spray head right to left while walking backward or forward. Move the lines to create a new strip and continue spraying until you cover the whole area.

5. Check out for any unsprayed parts since moss turns black within twenty minutes of spraying.

6. Rake out the dead moss after about a month

How To Prevent Moss

Moss produces its food and does not kill grass, but its presence indicates that your lawn isn’t healthy and needs to be addressed. The following methods help to prevent moss;

1. Raising The Soil pH

Use a lawn spreader to add lime to your soil and raise its pH. A high pH value makes the soil less acidic, which is favorable for grass to grow but less favorable for moss. Make sure to follow the instructions on the package for the application of lime.

2. Improving Drainage

Improved lawn drainage also helps to get rid of moss. Aerate the soil to improve air circulation and dig trenches or add soil for water to drain off the lawn into the desired area. If you have less water in your lawn, it will reduce moisture suitable for moss.

3. Fertilize Your Lawn

Call an expert to test your soil and determine if it lacks any nutrients. Use the right fertilizer for your soil according to the test and follow the package instructions.

4. Reduce Watering

Avoid watering your grass regularly and do it only when the lawn is dry. Reducing watering prevents excess water from collecting in the soil and thus prevents moss.

What is moss?

Moss is a non-vascular plant that belongs to the Bryophyte family. Unlike most plants, moss doesn’t have true roots, stems, or leaves. Instead, it has simple structures that help it absorb water and nutrients from its surroundings. This adaptation allows moss to thrive in damp and shaded areas, such as forests, rocks, and even on the bark of trees.

Mosses in the Ecosystem

Although moss is often underappreciated, it plays a vital role in our ecosystem. Here’s why:

  • Environmental Indicators: Mosses are extremely sensitive to environmental changes, making them excellent bio-indicators. They can help scientists gauge air pollution levels, monitor climate change, and assess water quality.
  • Soil Erosion Control: Mosses have a unique ability to absorb large amounts of water, preventing soil erosion on slopes and banks. This makes them valuable allies against the damaging effects of rainfall.
  • Carbon Sink: Mosses trap carbon dioxide from the atmosphere during photosynthesis, helping to reduce greenhouse gas levels and combat climate change.

Aesthetic Beauty of Moss

Aside from its ecological importance, moss also offers aesthetic value. Its lush green carpet-like appearance adds a touch of tranquility and natural beauty to gardens and landscapes. Many people now embrace the concept of moss gardening as an alternative to traditional lawns, appreciating the low maintenance and unique appeal it provides.

Biodiversity Hotspots

Mosses create mini ecosystems by providing shelter and nourishment for a variety of living organisms. Beetles, spiders, worms, and even tiny creatures like tardigrades seek refuge in the cool and moist environment that moss provides. These miniature habitats are a crucial component of our ecological tapestry, supporting biodiversity and fostering delicate balances within ecosystems.

Why is moss growing on my lawn?

Having a lush and healthy lawn is something many homeowners strive for. However, sometimes instead of vibrant green grass, you may find patches of moss growing on your lawn. Moss is a common issue for many lawns and can be frustrating to deal with. So, why is moss growing on your lawn? Let’s explore some possible reasons:

  1. Poor Drainage: One of the main reasons moss thrives in lawns is poor drainage. If your lawn retains excessive moisture for prolonged periods, it creates the perfect environment for moss to grow. To improve drainage, consider aerating your lawn to allow water to penetrate deeper into the soil.
  2. Compact Soil: Soil compaction restricts the movement of water and air through the soil. This not only promotes moss growth but also hinders grass growth. Aerate or dethatch your lawn to alleviate soil compaction, allowing the grass to flourish while making it less favorable for moss.
  3. Low Light Levels: Moss thrives in shady areas that receive minimal sunlight. If your lawn has areas with dense tree cover or gets limited direct sunlight, it creates an ideal environment for moss growth. Prune tree branches and thin out shrubs to allow more sunlight into those areas.
  4. Soil Acidity: Acidic soil conditions favor moss over grass growth. Conduct a soil test to determine the pH level of your soil. If it is too acidic, add lime to raise the pH level and create a more favorable growing environment for grass.
  5. Nutrient Imbalance: Imbalanced nutrient levels can contribute to moss growth. Excessive nitrogen and deficient potassium are common culprits. A soil test will help identify any nutrient deficiencies or excesses, allowing you to adjust fertilizer applications accordingly.
  6. Overwatering: Some lawns may be prone to moss growth due to overwatering. Moss thrives in moist environments, so watering your lawn excessively or too frequently can encourage its growth. Adjust your irrigation schedule to meet the needs of your grass without saturating the soil.
  7. Poor Soil Quality: Lawns with poor soil quality often struggle to support healthy grass growth. Thin or depleted topsoil can lead to moss invasion. Improve the quality of your soil by regularly adding organic matter such as compost or topsoil, promoting a healthier lawn.
  8. Lack of Maintenance: Neglecting your lawn can contribute to moss growth. Regular mowing, appropriate fertilization, and proper weed control are essential for maintaining a healthy lawn. By practicing good lawn care habits, you can minimize moss infestations.
  9. Excessive Shade: If a portion of your lawn is constantly shaded due to permanent structures or landscape features, it may be prone to moss growth. Consider using shade-tolerant grass species or alternative ground covers in those areas to discourage moss invasion.
  10. Lawn Traffic: Constant foot traffic on your lawn can compact the soil and weaken grass growth, making it more susceptible to moss invasion. Encourage designated walkways or consider installing stepping stones to minimize damage and preserve the health of your grass.

Final Word

Although moss is not considered a weed, it becomes a nuisance when it grows on your lawn. It may also show that your grass has some health issues that call for your attention.  You can get rid of moss by applying the correct moss control and creating a healthier lawn environment.