What is the success rate of overseeding?

Author: Gretchen Stark III  |  Last update: Saturday, May 3, 2025

Even with this heavy watering, overseeding has an average successful germination rate of just 30%. Pro Tip! If your thatch layer is more than a ½-inch thick, dethatch your lawn first to greater exposure of the soil.

How effective is overseeding?

The most well-known benefits of overseeding turf are a thicker, greener lawn and better grass resilience to drought, pests, and diseases. But that's not all it offers. There are many benefits of overseeding your lawn, and we're discussing all the important ones in this article.

How long after overseeding can you see results?

You'll Likely Start Seeing New Grass Growth Within 2-4 Weeks After Overseeding. About two weeks after overseeding, you should start noticing some new grass growth.

Can I just throw grass seed on bare spots?

If you simply toss the grass seed onto the soil, you will end up with poor germination. If the seeds are not properly protected by existing grass or a thin layer of topsoil, they may dry before germination or be washed away by rain.

What is the spread rate for overseeding?

Spread your Grass Pad weed-free grass seed with a rotary or hand-cranked “whirlwind” spreader. The seeding rates vary based on what type of seed you have chosen and your conditions. A good rule for overseeding is 5-10 lbs per 1,000 square feet for fescue seed and 2-4 lbs per 1,000 square feet for bluegrass.

Overseeding Lawn 11 tips that will ensure your success

Can you put down too much overseed?

Quality grass seed labels include guidance on optimal seeding rates to maximize your results. Don't overdo or cut corners. Too much grass seed causes undue competition for resources such as light, water and nutrients, and grass seedlings struggle as a result. Too little seed leaves lawns thin or bare.

What happens if you don't rake in grass seed?

Remember, lawn grass seeds only need to be lightly raked into the soil, or even just scattered directly on the soil surface. Any seeds buried more than the length of the seed will have a hard time germinating successfully.

Does putting grass clippings on bare spots help grass grow?

Does Putting Grass Clippings on Bare Spots Help Grass Grow? While leaving grass clippings on the lawn during mowing (grasscycling) can offer benefits like nutrient recycling and improved soil health, it's not the most effective method for directly promoting grass growth in bare spots.

Can I overseed my lawn without aerating?

The answer is that you can overseed effectively without aerating. As we've just mentioned, it's all about seed-to-soil contact.

Should I water immediately after overseeding?

Begin watering on the very first day of seeding. Always water as close to dawn as possible in order to give your lawn adequate time to absorb water and dry itself. This will help avoid fungal infections that will bring your seedlings' progress to a screeching halt.

Do you need to put down straw when overseeding?

Using straw to cover newly seeded areas is not recommended. Some straw may contain weeds and unwanted plant seeds that can invade your lawn. We recommend putting down a thin layer of Scotts® Turf Builder® LawnSoil™ evenly over the prepared area. Next, spread grass seed and lightly rake into soil.

How to tell if overseeding worked?

Believe it or not, you can actually see core aeration and overseeding results on your commercial property in as little as 7 to 10 days. This is when the soil plugs will break down and the seeds will begin germinating and you'll start to see healthier, thicker grass develop.

What month should you overseed your lawn?

FAQ About Spring Overseeding

For warm-season grasses, late spring, specifically around May, is ideal. On the other hand, the preferable seeding window for cool-season grasses is in the fall, from late August to early September, and alternatively in early spring, around March.

Can I just throw grass seed down?

Will grass seed grow if you just throw it on the ground? Definitely yes! Hand-sowing is the simplest method if you only need to cover a few spots. Take a handful of seeds and spread them over the dead patch, or better yet, involve your kids and introduce them to some basic gardening chores.

Is overseeding a waste of money?

The problem is that a weed control treatment won't be able to distinguish between weed seeds and grass seeds, so it will hinder both from developing. Either way, you should hold off on overseeding in spring because you'll end up having to do it again later in the year thanks to weeds germinating during this time.

What is the fastest way to grow grass in bare spots?

How to Reseed Bare Patches
  1. Rake the Area. Rake and remove any debris or dead grass from the area, using a garden rake. ...
  2. Loosen the Soil. Break up the soil with a hard-toothed lawn rake or a garden cultivator. ...
  3. Amend the Soil. ...
  4. Spread the Seeds. ...
  5. Rake the Seeds. ...
  6. Begin Watering. ...
  7. Mow When Ready.

Can I cover grass seed with cut grass?

Mulching for Seed Protection: After seeding a lawn, a light layer of grass clippings can act as mulch, protecting the seeds from birds, wind, and sunlight.

Will grass eventually fill in bare spots?

It can but it's not in a rush, especially if your spots resulted from dog urine or lawn disease or even an accident with the mower. Weeds, though, will jump in at a frustratingly fast speed. So what's best for you to do is follow some important steps for filling in those bare spots on your own.

What's the best thing to put on top of grass seed?

Mulch with a thin layer of weed-free straw such as wheat straw. As an alternative, you can use a seed starter mat or seed blanket to help keep the seed and loose soil from washing or blowing away.

Will uncovered grass seed grow?

Will grass seed grow if not covered? Yes; but there is more to know when seeding your lawn. Grass seed is resilient. Some seeds on the soil's surface will sprout in spite of harsh treatment, but the germination rate will diminish and you will waste your investment and hard work.

Will grass grow on hard packed dirt?

Technically, yes. Planting a lawn is as simple as sprinkling seeds on the ground. But if you're growing grass on hard dirt, you should prepare and aerate the soil before. Also, it's important to sprinkle the seeds during the grass's peak growing season and mix them slightly with the dirt.

Does overseeding really work?

Overseeding is an easy way to fill in bare spots, thicken turf, improve your lawn's appearance, and enhance the lawn's ability to fight insects and diseases.

What is the easiest grass to overseed?

The Best Quick Growing Grass Seeds

Perennial Ryegrass, as mentioned earlier, is a fast-growing favorite. Its quick germination and growth rate make it an excellent choice for lawn renovation or overseeding projects.

How many 50 lb bags of grass seed per acre?

Temperate climate lawn grass seed mixtures are recommended to be seeded at a rate of 125 to 300 pounds of grass seed per acre. So, you're looking at as much as about . 4 acres to as little as . 17 acres for 50 pounds of seed.

Previous article
What light fixtures are outdated?
Next article
What refrigerant can I use instead of R134a?