Show #102 - Fall Lawn Care: 10 Common Mistakes to Avoid When Seeding and Repairing Your Lawn

Fall Lawn Care Guide: 10 Mistakes to Avoid for Spot Lawn Repair

The USDA fall lawn seeding season for the Mid-Atlantic begins August 15th—not September 1st. Timing is critical because tall fescue takes 2–3 weeks to germinate and must grow to 5” before mowing. Success starts with weed control, soil care, and avoiding common mistakes.

Kill Weeds Before Seeding

Use Fertilome Weed Free Zone for broadleaf weeds.
For grassy weeds (crabgrass, goosegrass, barnyard grass, nutsedge):
- Mix 4 oz Image All-in-One with 1 oz Wilt Pruf per gallon of water.
- Spray anytime (even in rain), but early morning dew is most effective.
- Wilt Pruf laminates on contact—seed and fertilize immediately after.
Dying weeds act as natural straw, covering new seed.

Weed Identification Tricks

Mow, wait 2–3 days—any grass that grows taller is likely a weed.
Morning dew highlights textures: Poa Annua and Poa Trivialis stand out.
Take weed samples in a damp paper towel to an Independent Garden Center for identification.

Top 10 Fall Lawn Care Mistakes

1. Waiting Too Long to Hire Lawn Services

Contact companies before September when schedules are overloaded.
Talk with neighbors who have the best lawns for referrals.

2. Ignoring Soil Quality

Cut a 5×5” plug 3–4” deep.
You should see 1” of black topsoil—if not, top-dress with McGill’s Soil Builder.

3. Forgetting Lime Applications

Apply 40 lbs per 1,000 sq ft every year.
Without liming in 2 years, you lose up to 71% of fertilizer efficiency.

4. Using the Wrong Fertilizer

Avoid high-phosphorus starter fertilizers.
Use slow-release, low-salt fertilizers like Turf Trust with trace elements.

5. Misjudging Sun vs. Shade Areas

Sun = measured only from 11am–5pm.
3+ hours = light shade, 4–6 hours = full sun (tall fescue thrives).
2–3 hours = medium shade (Chewings Fescue, Hard Fescue, Perennial Rye, Bluegrass).
Dense shade = add Sabre Bluegrass.
Always check the “box of truth” on seed labels.

6. Buying Low-Quality Box Store Seed

Bags often contain 48% or less seed (sometimes only 7.3%).
Coated/easy seed is ineffective—no slow-release nutrients.
At Betty’s: highest-rated tall fescue at less than half the cost.

7. Overseeding Healthy Areas

Focus only on bare spots, not the entire lawn.
Modern tall fescues like Regenerate expand naturally—no yearly overseeding needed.

8. Do Not Use Straw

Outdated practice—today’s tall fescue germinates in 2 weeks.
Use Greenview Grass Seed Accelerator instead—it holds water and decomposes into soil.

9. Watering at the Wrong Time

Water 1-2 hours per area daily at 5–8 PM.
Water 2 hours in the sun and 1 hour in shade.
Evening watering holds moisture overnight without fungus risk.
Shade areas germinate faster when watered in late evening.

10. Failing to Measure Water Accurately

Use a rain gauge—established lawns need 1” per week.
New lawns need 2–3 times more.
Add humates (Kick Start) to speed up results.

By avoiding these 10 fall lawn care mistakes, you’ll set up your lawn for strong growth, fewer weeds, and healthier soil. With the right timing, products, and techniques, your lawn can thrive well into spring.