Why Fall is the Best Season for Grass Seed and Aeration in New Jersey

Autumn’s crisp air and vibrant foliage aren’t the only things to celebrate as summer slowly fades out. If you’re a homeowner in New Jersey, it’s also an ideal opportunity for strategic lawn care. 

While spring might naturally come to mind when you think of planting and nurturing your grass, fall is an optimal time for seeding and aeration. Here’s why.

Understanding the Fall’s Charm

Let’s take a closer look at what makes it such an ideal season:

  • Soil Temperature is Just Right: The warm summer months heat the soil, but come fall, it retains enough warmth to support germination while cooling down enough to deter pesky weeds. This temperature sweet spot ensures your grass seeds germinate effectively.
  • Moisture Levels are Beneficial: Fall often brings ample rainfall, which means natural hydration for your freshly sown seeds. The consistent moisture, combined with cooler temperatures, reduces the evaporation rate, ensuring a consistent water supply for the new grass roots.
  • Fewer Lawn Diseases: Many lawn diseases thrive in the warm and humid conditions of summer. As temperatures drop, these diseases become less active, giving your new grass a better fighting chance.
  • Less Competition from Weeds: By the time fall rolls around, most of the weeds have completed their life cycle. This means your grass seed will face less competition for nutrients, space, and sunlight.

Why Aeration is Critical

Over the summer, foot traffic, mowing, and other activities can cause soil compaction. In turn, this compacted soil restricts the movement of water, nutrients, and air, making it challenging for grass roots to grow deep and strong. 

Aeration involves creating small holes throughout your lawn to break up this compaction.

What are the benefits?

  • Improved Seed-to-Soil Contact: Aerating before seeding ensures that the grass seeds get into the soil instead of just lying on the surface. This improves germination rates.
  • Deep Root Growth: As the soil is loosened, new grass roots can penetrate deeper, meaning a strong foundation for your lawn.
  • Enhanced Nutrient Uptake: Loose soil allows for better water penetration and nutrient absorption. When you water or fertilize post-aeration, the benefits reach the grass roots more effectively.


Q: Can I aerate and seed on the same day?

A: Absolutely! In fact, seeding immediately after aeration is recommended. This ensures the seeds penetrate the freshly aerated soil, optimizing seed-to-soil contact.

Q: When in the fall should I seed and aerate?

A: Aim for early to mid-fall. This allows the grass seeds ample time to germinate and establish roots before winter’s chill sets in.

Q: Do I need to water my lawn after seeding in the fall?

A: While fall typically brings increased rainfall, it’s still essential to keep the soil consistently moist after seeding. If Mother Nature isn’t providing, water your lawn lightly every day or two until the grass is established.

Q: How often should I aerate?

A: Most lawns benefit from annual aeration. However, if your soil is particularly clayey or sees heavy traffic, consider aerating both in the spring and fall.

Q: Can I mow my lawn after seeding?

A: Wait until the new grass reaches about 3 inches in height before mowing. When you do mow, ensure your blades are sharp enough to avoid pulling out the young grass.

Have More Questions About Fall Lawn Care in Cherry Hill, NJ?

Reach out to us at Elements Lawn & Pest! We’d love to talk with you in more detail and outline a care plan specific to your property’s needs.

626 Park Rd
Cherry Hill, NJ 08034

130 Hickman Road, Suite 11
Claymont DE 19703