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InsightHorizon Digest

Is an Overseeder the same as a slice seeder

Author

John Parsons

Updated on April 05, 2026

A slice seeder is perfect for lawns with more patchy growth and burnt grass as it has a higher germination rate. At the same time, the overseeder is ideal when trying to thicken a thin lawn as it does not need a very high germination rate, and it’ll also protect the good grasses.

What is a slice seeder?

Slice seeders are expert seed planters. They’re adjusted to cut at the proper depth for the seed you’re using, and the slices into the soil are calibrated to give an even planting bed. As the machine lays down the seed, teeth work it into the soil.

Can you use an Overseeder for a new lawn?

The Classen TS-20 turf overseeder is a multipurpose machine for seeding a new lawn or overseeding an existing lawn. The front seed drop ensures follow-up soil coverage for better seed germination. The blades are designed with a cutting edge on both ends, which doubles blade life.

Can you slice seed in the spring?

Later spring is best since weeds have established but before they flower. Slit Seeding. Slit seeding lawns is a technique of planting grass seeds that mix dethatching with seeding. A row of blades, that somewhat resemble stars, penetrate the soil and create slits in the group.

Does slice seeding work?

While it’s effective, slice seeding is also one of the most intense lawn seeding methods for established lawns. If your lawn is in half decent shape, there’s really no need for something so intensive. In fact, a slice seeder will rip out existing plants and till up a lot of your existing healthy lawn.

Do you need to dethatch before slice seeding?

Your lawn will require some preparation before it is slit-seeded. This will help to retain as much of your existing grass as possible and will ensure that the slit seeder does not encounter potentially damaging obstacles. Remove all branches, rocks and other debris from your lawn.

How much seed does a slice seeder use?

To start, fill the slit seeder with seed. The most common setting for the slit seeder is to lay about 5 pounds of seed per 1,000 square foot.

Can you mow after slice seeding?

Mowing Your Slice Seeded Lawn Wait two weeks after that initial mowing before mowing again. After that, just mow as you normally would.

What do you do after slit seeding?

  1. Have a soil test done. …
  2. Decide on the type of grass seed you want. …
  3. Mow your lawn. …
  4. Rake the lawn (particularly if you don’t have a bagger on your mower). …
  5. Apply fertilizer based on soil-test-recommendations.
Is an Overseeder necessary?

It’s an easy way to fill in bare spots, improve the density of turf, establish improved grass varieties and enhance your lawn’s color. If a lawn looks old, or just “worn out,” if it needs growing amounts of water and fertilizer to thrive, or is disease or insect prone, it’s a perfect candidate for overseeding.

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Does overseeding actually work?

The effectiveness of overseeding, whether done in the spring or fall, is enhanced when it is combined with lawn aeration. … Overseeding lawns in spring can thicken lawns and make them more attractive, but it’s hardly just a matter of throwing the best grass seed onto the lawn.

How much does overseeding cost?

Adding overseeding and fertilizing to your aeration will bump up the cost. The cost of aeration, overseeding, and fertilizing is around $250 to $300 if you use a lawn care company.

Should I overseed or slice seed?

Slice seeding will get those grass seeds off to the best start to fill in your bare areas. Even though aeration creates holes that grass seed will fall into during overseeding, the slice seeder offers the best seed-to-soil contact for faster results.

What do Dethatchers do?

Simply put, a dethatcher is a device that effectively removes thatch from your lawn. A dethatcher can be as simple as a rake, towed behind your tractor, or even motorized for commercial jobs. A dethatcher uses metal blades or tines to comb across the grass and pull thatch up to the surface of the lawn.

How long should I wait to mow after slit seeding?

Ideally you should wait about 2 weeks before the first mow, but if it gets too tall before that then mow.

Should I mow before overseeding?

Mow Low. Before overseeding your thin lawn, cut your grass shorter than normal and bag the clippings. After mowing, rake the lawn to help loosen the top layer of soil and remove any dead grass and debris. This will give the grass seed easy access to the soil so it can root more easily after germinating.

Should you bag grass clippings after overseeding?

Personally, when mowing an overseeded area (after waiting until appoximately a week after all the seeds have germinated), I use a bag to avoid the grass clippings covering up the newly-germinated new grass, at least until the new grass is generally all at about the same height as the previously-existing grass.

What does slit seeding look like?

A Look At Slit-Seeding Slit-seeding is a mechanical method of planting grass seed that combines a bit of dethatching with seeding. A row of blades that resemble stars dig down into the soil, creating slits in the ground. … The sharp blades also create a perfect row of openings for the seeds.

What does a self-propelled Overseeder do?

Self-propelled Overseeder New to the unit is a blade design that reduces thatch and improves blade life due to its sharpened leading edge and attack angle combined with a new foot actuated height adjust that raises and lowers the reel effortlessly, providing more blade depth. … The unit comes standard with a 30 lb.

How do I overseed my lawn without aeration?

To overseed a lawn without aerating, start by mowing it lower than 2 inches and follow it up with raking to remove debris and loosen up the topsoil. Spread the grass seed and then rake over it gently. Fertilize with a starter fertilizer and then water the lawn lightly until the grass grows to a good mowing height.

Does an Overseeder aerate?

Aeration opens up the lawn and allows for more air, water and nutrients to penetrate into the root zone and develop healthier and deeper root growth. Overseeding drops seed and opens a groove in the soil about a 1/4 inch deep that creates good seed-to-soil contact and germination rates for a thicker lawn.

Is it OK to overseed in the spring?

There are two ideal times of the year to overseed your lawn – fall and spring. Fall is the best choice. … Also, weed growth tapers off after summer, so your new grass won’t have to compete for sunshine, water, and nutrients. Overseeding in spring is the next-best option.

What month is best to put grass seed down?

Plant cool-season grass seed in late summer or early fall (when daytime temperatures lower to about 60 to 75 degrees) for best success. September is typically the best month, although you might be able to get away with seeding as early as mid-August or as late as mid-October; it all depends on the forecast.

Should I aerate and seed every year?

Golf courses aerate a couple times a year and residential lawns should look at aerating at least every other year. This depends on soils, traffic and moisture but every other year is a good general rule. … This is the process of adding grass seed into an existing lawn.

Why is grass seed so expensive 2021?

The COVID pandemic has been a major contributor to record market conditions of extremely high demand and limited availability that no one could predict. It will play a major role in much higher grass seed prices in 2021 as if grass seed wasn’t already expensive.

How much will a 50 lb bag of grass seed cover?

“let’s see, a 50 lb bag is roughly 16”x 30”, or abou 3.33 square feet. An acre is 43,560 square feet so the bag of grass seed will cover approximately 0.0000657 acres.”