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Fall Lawn Preparation Guide: How to Get Your Grass Ready for the Cooler Months

Borst crewman working with a leaf blower on a lush lawn to prepare the yard for the fall

A Practical Fall Lawn Preparation Guide to Keep Your Yard Healthy and Green Year-Round

As the temperatures begin to drop and the leaves start to fall, many homeowners shift their focus indoors—but fall is actually one of the most important times of year to care for your lawn. A thoughtful fall lawn preparation guide can make the difference between a lush, green yard in spring and a patchy, weed-filled lawn. By taking the right steps now, you’ll set your grass up for success when the growing season returns.

Want personalized help getting your lawn ready for fall? At Borst Landscape & Design, we can handle your seasonal maintenance with precision and care. Call us at (201) 822-9327 to schedule a fall lawn consultation.

Why Fall Lawn Care Matters

Fall isn’t just the end of the growing season—it’s also the beginning of next year’s growth. During the autumn months, your lawn is still active underground, with roots continuing to grow even as the grass above slows down. Applying the right practices during this critical time helps strengthen root systems, improve nutrient absorption, and prevent common winter damage.

A well-executed fall lawn preparation guide ensures your yard remains resilient through the cold and emerges strong and green in spring.

1. Keep Mowing—But Adjust Your Height

Many homeowners stop mowing too early in the season, but grass continues to grow until the first hard frost. Regular mowing keeps the lawn tidy, reduces pests, and improves air circulation.

Fall mowing tips:

  • Continue mowing until the grass stops growing (typically late October in New Jersey)
  • Gradually lower the mower blade height to about 2 to 2.5 inches
  • Avoid cutting more than one-third of the blade height at a time

Shorter grass going into winter helps prevent matting and mold growth under fallen leaves or snow.

2. Rake Leaves Regularly

A layer of fallen leaves may look pretty, but it can suffocate your lawn by blocking sunlight and trapping moisture. This creates ideal conditions for fungi and disease.

Leaf management tips:

  • Rake or mulch leaves weekly to prevent buildup
  • Use a mulching mower to shred leaves into small pieces that decompose into the soil
  • Compost extra leaves to use in garden beds or as mulch

Keeping your lawn clear allows it to breathe and ensures continued access to light and air.

3. Aerate the Soil

One of the most beneficial things you can do in fall is aeration. Over the summer, foot traffic and heat compact the soil, making it difficult for water, air, and nutrients to reach the roots.

Benefits of aeration:

  • Loosens compacted soil
  • Improves root development
  • Enhances fertilizer and water absorption

Use a core aerator that removes plugs of soil rather than a spike aerator, which can make compaction worse. Aeration is most effective when paired with overseeding and fertilizing.

4. Overseed to Fill in Bare Spots

Fall is the ideal time to overseed your lawn because the soil is still warm, moisture is more consistent, and competition from weeds is lower.

How to overseed:

  • Choose a grass seed mix suited to your region and existing turf
  • Apply seed after aerating for better seed-to-soil contact
  • Water lightly and frequently until seeds germinate (about 2–3 weeks)

Overseeding helps fill in thin or bare patches and introduces new, more disease-resistant grass varieties to your lawn.

5. Fertilize for Root Growth

Fall fertilizing supports strong root development, helping your lawn withstand winter stress and green up faster in spring.

Fertilizing tips:

  • Use a fertilizer labeled for fall with high potassium and moderate nitrogen
  • Apply 4–6 weeks before the first expected frost
  • Water thoroughly after application to help nutrients absorb

Avoid high-nitrogen “quick green-up” formulas in fall, as they encourage top growth at the wrong time of year.

6. Apply a Fall Weed Control Treatment

While weeds may seem dormant in fall, many—like dandelions and clover—actually store energy in their roots to reemerge in spring. Fall is a strategic time to control them.

Weed control strategies:

  • Spot-treat perennial weeds with a targeted herbicide or organic treatment
  • Avoid broad-spectrum sprays if you’ve just overseeded
  • Maintain a healthy lawn—thick turf naturally crowds out weeds

By tackling weeds now, you reduce their spread and minimize the need for aggressive treatment later.

7. Top-Dress With Compost or Soil Amendments

Adding a thin layer of compost or organic soil amendments improves soil structure, boosts microbial activity, and enhances nutrient availability.

Top-dressing best practices:

  • Spread ¼ to ½ inch of compost evenly across the lawn after aeration
  • Rake lightly to work it into holes and thatch
  • Water thoroughly to settle the compost into the root zone

This step helps create a healthier growing environment and encourages long-term soil fertility.

8. Adjust Irrigation as the Weather Changes

Fall weather typically brings more rainfall, but dry stretches can still occur. Your lawn needs consistent moisture to recover from summer stress and establish strong roots.

Watering tips:

  • Water deeply but less frequently—about 1 inch per week, including rainfall
  • Reduce watering as temperatures drop, but don’t stop entirely until the ground freezes
  • Avoid watering at night to reduce the risk of fungal growth

Install a rain sensor on your irrigation system to avoid overwatering during wetter periods.

9. Test Your Soil and Plan Ahead

If you haven’t tested your soil in a few years, fall is a great time to do so. Understanding your soil’s pH and nutrient levels helps you apply amendments more effectively.

Why soil testing matters:

  • Identifies pH imbalances that affect nutrient uptake
  • Helps you avoid overfertilizing or applying unnecessary treatments
  • Supports a science-based approach to lawn care

A soil test now can guide your early spring plan and help you create a stronger lawn next year.

10. Prepare Lawn Equipment for Winter

Finally, don’t forget about your tools and equipment. Properly winterizing your mower and other gear ensures they’re ready to go when the next season begins.

Equipment maintenance checklist:

  • Clean mower decks and sharpen blades
  • Drain fuel or add stabilizer
  • Store tools in a dry, protected space

Taking care of your equipment now saves time and hassle when spring rolls around.

Set Your Lawn Up for Success

Following a fall lawn preparation guide is one of the most valuable things you can do to protect and improve your turf. From aeration and overseeding to soil care and weed control, every step you take now will pay off with a thicker, greener, and healthier lawn in the spring.

Not sure where to begin or want professional support? Call (201) 822-9327 or contact us online to schedule your free consultation with Borst Landscape & Design. We’re here to help you prepare your lawn for the season ahead—so it comes back better than ever.