Lawn mowing is an essential aspect of lawn care, and it is essential to understand the different types of blades available. Mulching blades and side discharge blades are two of the most popular options on the market. While both blades serve similar purposes, they function differently, and it is important to know their advantages and disadvantages. This guide will provide a comprehensive overview of mulching blades and side discharge blades, the compatibility of using them together, and how to use them.

What are Mulching Blades and How Do They Work?
A. Definition of Mulching Blades
Mulching blades are lawn mower blades that are designed to cut grass clippings into fine pieces, which are then blown back into the lawn, acting as a natural fertilizer. These blades have a curved shape
B. Types of Mulching Blades
There are two types of mulching blades: high-lift and low-lift blades.
- High-lift blades are designed to produce a strong airflow, which lifts the grass clippings and cuts them into finer pieces
- Low-lift blades are designed for mowers with lower horsepower and are ideal for shorter grass
C. How Mulching Blades Work
Mulching blades work by creating a vacuum that lifts the grass up towards the cutting edge. The curved shape of the blade helps to keep the grass in the cutting chamber for a longer period, increasing the likelihood of it being cut multiple times. The cut grass is then circulated back into the lawn, where it decomposes and acts as a natural fertilizer.
D. Advantages and Disadvantages of Mulching Blades
Advantages
- Cuts grass into finer pieces
- Acts as a natural fertilizer
- Reduces the need for bagging and disposal of grass clippings
- Saves time and money on lawn care
Disadvantages
- Requires a powerful mower to work effectively
- Grass clippings can accumulate on the lawn if too much is cut at once
- May not be as effective on excessively long or wet grass

What is Side Discharge and How Does It Work?
A. Definition of Side Discharge
Side discharge is a method of grass cutting where the clippings are ejected from the side of the mower deck. This method is ideal for larger lawns where mulching is not practical.
B. How Side Discharge Works
Side discharge works by using a blade that is angled to the side, which helps to direct the grass clippings away from the mower deck and onto the lawn. The clippings are then left on the lawn, where they decompose naturally.
C. Advantages and Disadvantages of Side Discharge
Advantages
- Ideal for larger lawns with longer grass
- Reduces the need for bagging and disposal of grass clippings
- Saves time and money on lawn care
Disadvantages
- Grass clippings can accumulate on the lawn if too much is cut at once
- Can leave clumps of grass on the lawn if the grass is too long or wet
- May not be as effective on shorter grass

Can You Use Mulching Blades with Side Discharge?
A. Explanation of the Compatibility of Mulching Blades and Side Discharge
Yes, it is possible to use mulching blades with side discharge. Mulching blades can be used to cut the grass into finer pieces, which can then be discharged from the side of the mower deck.
B. Advantages and Disadvantages of Using Mulching Blades with Side Discharge
Advantages
- Cuts grass into finer pieces
- Acts as a natural fertilizer
- Reduces the need for bagging and disposal of grass clippings
Disadvantages
- Grass clippings can still accumulate on the lawn if too much is cut at once
- May not be as effective on excessively long or wet grass
C. Factors to Consider When Using Mulching Blades with Side Discharge
- Ensure that the mower has enough power to effectively use mulching blades
- Cut the grass regularly to prevent it from becoming too long or wet
- Adjust the mower deck height to ensure that the grass is cut to the correct length
How to Use Mulching Blades with Side Discharge
A. Preparing Your Lawn Mower
- Clean the mower deck to remove any debris or build-up
- Ensure that the mower blades are sharp and in good condition
- Adjust the mower deck height to the correct length for your grass
B. Installing Mulching Blades
- Remove the old blades from the mower
- Install the mulching blades, ensuring that they are properly aligned and tightened
C. Using Mulching Blades with Side Discharge
- Mow the lawn as usual, ensuring that the grass is not too long or wet
- Check the lawn periodically to ensure that the grass clippings are not accumulating in one area
D. Tips for Optimal Performance
- Regularly maintain your lawn mower to ensure that it is in good condition
- Cut the grass regularly to prevent it from becoming too long or wet
- Adjust the mower deck height to ensure that the grass is cut to the correct length
- Use a mulching blade designed for your specific mower model
Conclusion
Mulching blades and side discharge blades are both effective methods of grass cutting, each with their own advantages and disadvantages. When used together, they can help to improve the overall health and appearance of your lawn. By following the tips and guidelines outlined in this guide, you can make the most of your lawn care routine and achieve a beautiful, healthy lawn.