Care Instructions for Your Lawn After Slit Seeding and Aeration

Achieving a lush, green lawn involves various steps, and slit seeding and aeration are crucial components in this process. These techniques help improve soil health, seed germination, and overall turf quality. However, the care your lawn receives post-treatment is equally important to ensure the best results. Here are detailed care instructions to follow after slit seeding and aeration:


Watering is the most critical aspect of post-treatment lawn care. After slit seeding and aeration, your lawn needs consistent moisture to aid seed germination and root development.

Initial Watering: Water the lawn immediately after the treatment to help settle the seeds into the soil and close up the aeration holes.
Daily Watering: For the first two weeks, keep the soil consistently moist. Water lightly once or twice daily to avoid washing away the seeds but ensure the top inch of soil remains damp.
Reduce Frequency: After the first two weeks, reduce watering to once every 2-3 days, providing deeper soakings to encourage root growth.

Proper mowing practices are essential to avoid stressing the new grass.

Initial Mowing: Refrain from mowing until the new grass reaches a height of about 3-4 inches. This typically takes around 3-4 weeks.
Mowing Height: When you start mowing, set your mower to the highest setting to avoid cutting the new grass too short. Gradually lower the mowing height over subsequent mowing sessions.
Regular Mowing: Maintain a regular mowing schedule, ensuring you never cut more than one-third of the grass height at a time to promote healthy growth.

Fertilizing provides essential nutrients that help the new grass grow strong and healthy.

Initial Fertilization: If a starter fertilizer was not applied during the slit seeding and aeration process, apply one immediately after treatment.
Follow-up Fertilization: About 4-6 weeks after the initial treatment, apply a balanced, slow-release fertilizer to support continued growth and development.

Weed Control
Controlling weeds ensures your new grass doesn’t have to compete for resources.

Avoid Herbicides: Do not apply herbicides immediately after slit seeding and aeration, as they can harm the new grass. Wait until the new grass has been mowed at least three times before considering weed treatments.
Manual Weeding: Remove any visible weeds by hand to reduce competition without harming the new grass.

Traffic Management
Limit foot traffic on your lawn to avoid compacting the soil and damaging new seedlings.

Protective Measures: If possible, rope off the area or place signs to keep pets and people off the newly treated lawn.
Light Use: If you need to walk on the lawn, do so lightly and avoid concentrated traffic areas.

Monitoring and Maintenance
Regularly inspect your lawn for signs of stress, disease, or pests.

Observation: Keep an eye on the color, density, and growth rate of your lawn. Address any issues promptly to prevent them from spreading.

By following these care instructions, you’ll give your lawn the best chance to thrive after slit seeding and aeration, resulting in a beautiful, healthy, and resilient turf.

Contact Us

Landmark Landscapes of Sheboygan Falls, WI is a full-service landscape company. Based out of Sheboygan County, with a satellite office in Green Lake, Wisconsin. We are centrally located and uniquely positioned to service the areas of Sheboygan, Elkhart Lake, Fond Du Lac County, Green Lake County, Ozaukee County, Manitowoc County, and Door County. We can manage your property with our Total Property Care system, and design and build projects large and small. Contact us today at 920-467-6442 to learn how we can care for you.