Grass Seed Guide

Best Grass Seed For Overseeding

If you want a beautiful and healthy lawn, overseeding can be the perfect solution. In the fall, when temperatures cool down and grass starts to go dormant for its winter rest period, it can be the ideal time to add extra seed to the lawn. Not only does this help thicken existing grass, but it will also help it to become more resilient to future damage.

When it comes to choosing the right type of grass seed, there is an array of options available. You can choose from cool season grass seed, warm season grass seed, and even fast-growing grass varieties.

Depending on the layout of your lawn, you can select a low-maintenance option that is less labor intensive or choose a more resilient grass option. Either way, you will be guaranteeing yourself a lawn that is attractive, lush, and healthy.

What is Overseeding?

Overseeding is a great way to improve the look and functionality of your lawn while also giving it an extra layer of protection.

By planting additional seeds or an extra patch of seed, you can create a lush, beautiful landscape that will not only be pleasing to the eye but also give your lawn a boost that can help fix problem areas.

Overseeding is relatively simple and cost effective, and helps your lawn thrive in whatever environment it’s in. With the additional layer of protection, your lawn will not only look beautiful but also be hardy and resilient enough to handle any climate or weather condition.

Best Grass Seed For Overseeding

PreviewGrass SeedBuy On Amazon
Pennington Kentucky 31 Tall Fescue Grass Seed Check Latest Price
Scotts Turf Builder Grass Kentucky Bluegrass Check Latest Price
Pennington Smart Seed Perennial Ryegrass Check Latest Price
Outsidepride Creeping Red Fine Fescue Lawn Grass Seed Check Latest Price
Pennington 100526677 Smart Tall Fescue Grass Seed</a Check Latest Price
Annual RyeGrass Seed by Eretz Check Latest Price

Here are the 6 Best Grass Seeds For Overseeding:

Fescue Grass Seed:

Fescue is an ideal cool-season grass for overseeding, which makes it a great choice for golf courses and other heavily trafficked areas.

Fescue has the ability to grow in USDA plant hardiness zones 3 to 9, so it can be found all across the United States, though it does require full sun to reach its full potential.

As such, you must have plenty of time to dedicate to maintenance and mowing once or twice per month during the growing season if you choose to use fescue as your overseed grass seed of choice.

Fescue is renowned for its robust nature, making it especially well suited for northern states and Canada, as it will be able to endure harsher climates with ease.

Kentucky Bluegrass Seed:

If you’re considering overseeding your lawn with Kentucky bluegrass, it’s important to take into account its growing needs.

This cool-season grass is hardy in USDA zones 3 through 8, but it won’t survive in a soggy soil environment or one that experiences flooding.

Keep in mind that it performs best when the temperatures are between 60 and 70 degrees Fahrenheit, making late summer the ideal time to overseed.

It requires regular mowing throughout the season, so make sure to factor this into your overseeding plans.

With proper care and maintenance, Kentucky bluegrass can be a great choice for enhancing the look of your lawn and providing excellent cold tolerance even in shady areas.

Perennial Ryegrass Seed:

Planting perennial ryegrass as a lawn overseeding is a great choice due to its hardiness in USDA zones 5 through 9, its rapid germination in warm weather, and its wear tolerance.

Its resistance to many diseases is also an advantage, yet this type of grass seed requires frequent mowing in order to keep your lawn looking its best.

With plenty of time to devote to maintenance and in areas that don’t get a lot of rainfall, perennial ryegrass is a particularly good option for overseeding your lawn.

Furthermore, its fast warm-weather germination makes it an ideal choice for late-season planting.

If you are looking for a hardy, wear-tolerant grass seed with resistance to many diseases, perennial ryegrass is the perfect choice!

Red Fescue:

Red fescue is a fantastic choice of overseed grass seed for those living in USDA zones 3 through 8 and basking in full sun.

Whilst its hardy fibres require mowing a minimum of once each month during its growing season, red fescue is still an ideal choice for those short on time or living in areas with sporadic rainfall.

The blades of this cool-season grass help to promote sustainable water conservation by forming a thick barrier on the lawn’s surface, reducing evaporation and helping to maintain a healthy hydration level for strong root development and a lusher look.

Tall Fescue:

Tall fescue is an ideal choice for overseeding your lawn, especially if you live in areas with very dry climate like USDA Zones 5 through 9.

In order to thrive, this cool-season grass requires full sun and regular mowing at least once a month during the growing season. In addition to being highly tolerant of diseases, tall fescue is also incredibly hardy and sturdy, giving it an edge over other grass types when it comes to surviving the extreme conditions of dry climates.

Furthermore, it requires minimal maintenance of only a few hours a month, making it perfect for those who do not have time to tend their lawns yet still want a lush and vibrant look to their outdoor décor.

Annual Ryegrass:

Annual ryegrass is an excellent choice of overseed grass seed, especially during late-season planting when warm weather encourages fast germination.

It’s hardy in USDA zones 3 through 7, making it a great option for golf courses and other areas requiring excellent wear tolerance. Not only that, annual ryegrass is also resistant to many diseases – although you do have to mow at least once every month during the growing season to ensure a healthy lawn.

Its unique properties make it an ideal choice if you’re willing to dedicate a certain amount of time to its maintenance, or if your environment experiences very little rainfall.

Why Should You Overseed Your Lawn?

By overseeding your lawn, you are taking an easy and proactive step towards improving your lawn’s longevity and health. This quick process involves adding grass seed to existing turf in order to thicken the lawn’s appearance while crowding out any existing weeds.

Over time, this can create a lush, vibrant, and long-lasting lawn that requires minimal effort on your part. When it comes to achieving a beautiful and sustainable lawn, overseeding is a great way to get started.

Here are 5 reasons to overseed your lawn:

1. Make Your Lawn Greener and Thicker

Are you looking to give your lawn a boost of growth? If so, overseeding is the perfect solution!

By planting grass seed in the fall or early spring before the growing season begins, you can give your lawn an increased chance of becoming lush and green.

Using an aerator to allow air and nutrients to travel down to the root system of your grass can help stimulate even stronger growth.

In the long run, overseeding and aeration are key components to maintaining a healthy, thick lawn.

2. Stop Weeds from Taking Over Your Lawn

If you want a vibrant, luxuriant lawn with no weeds in sight, then it is essential to make sure that you are properly caring for it. One of the most important steps you can take is to make sure you overseed your lawn at least once every year, typically either in the fall or early in the spring.

Doing this will help to thicken up your lawn and reduce the opportunities for weeds to take over. In addition to overseeding, it is also important to maintain the proper height when mowing, provide regular fertilization, water when necessary and aerate frequently.

When spraying weed killer, be sure to know the type of grass you have, as some types are more sensitive than others. Taking these steps can help to ensure that your lawn is healthy and free of weeds all year round!

3. Save Money on Grass Seed and Fertilizer

If you’re looking for a gorgeous, vibrant lawn without the need to overseed each season, you should consider using fertilizer in place of purchasing new seed.

Not only is it more cost-efficient, but applied correctly, it can produce the same results as overseeding. When shopping for fertilizer, be sure to look for organic options if you want to avoid chemicals in your yard.

Watering once a week is another great way to keep your lawn looking healthy, especially during the hot summer months; however, make sure not to mow your grass too short, as this can cause an overgrowth of weeds.

Instead, mow your lawn at least two inches high and only when necessary (usually once a week). In addition to fertilizing and watering, aerating is also recommended.

This process will help loosen up the soil so that air, water, nutrients, and sunlight can penetrate it more deeply, allowing turfgrass and other deep-rooted plants to absorb them more efficiently and, in turn, flourish better!

If you don’t have an aerator, they can easily be rented or purchased. With the right care, your lawn will stay green and lush all season long!

4. Boost Your Lawn’s Health

If you want a lush, green lawn without weeds, overseeding can be a great help! By adding new seeds to your yard, you can give your grass a head start for the following year and make it more resistant to weed growth.

However, if you’d rather not overseed this season, you can still maintain a lush lawn with some simple steps. First, consider using fertilizer to provide your lawn with crucial nutrients that it needs in order to be greener and stay green longer.

While organic fertilizer is usually preferable, you can also find chemical-based fertilizer at most garden stores. Second, make sure to water your lawn regularly – especially during the hot summer months. Watering once a week will keep your lawn looking beautiful all summer long!

Lastly, when mowing, be mindful of the height. It’s best to mow at least 2 inches high so the sun can get to the soil where weed seeds are likely to germinate.

Consider aerating your lawn at least once a year. This helps create larger, healthier root systems by loosening up compacted soil and allowing air, water, and sunlight to reach the ground more efficiently.

Aerating can be done in several ways – from renting an aerator or buying your own – and will ultimately lead to stronger, greener grass throughout the summer season.

5. Save Time Mowing Your Yard

Overseeding your lawn is a great way to keep it healthy and growing thick and green. You won’t have to mow as often, which means you can save time each week!

Although overseeding is an effective way of keeping your grass healthy, using fertilizer is another option and can be cheaper too. When searching for fertilizer, make sure to look for organic choices so you don’t have chemicals sprayed on your lawn.

Watering is equally important for the growth and maintenance of your lawn; make sure to water once a week during summer months to keep your grass looking luscious and green all summer long.

But don’t go overboard with the mowing – mow only when necessary and make sure to keep the mower blade at least 2 inches high so that the sun can reach down to the top layer of dirt which can prevent weed growth from occurring in the future.

If you want to ensure your grass grows to its fullest potential, aerating is key. This process will loosen up the compacted soil, allowing air, water, nutrients and sunlight to penetrate more easily to the soil where the plants, especially turfgrass, will be able to absorb them efficiently.

Don’t feel like you need to hire someone to aerate your lawn – you can easily do it yourself by renting or buying an aerator to use at home!

When Should You Overseed a Lawn?

To achieve optimum results when overseeding your lawn, it is best to do so when the grass is actively growing. This can typically be done in the early spring or late summer, before the harsh winter weather sets in.

Prior to seeding, mowing the lawn and removing any clippings will give the new grass seed plenty of space to germinate and grow to its full potential.

Furthermore, the soil should be raked and the top layer of thatch removed with a core aerator, which will help to ensure good moisture penetration by allowing oxygen, water and fertilizer to reach the root zone.

In conclusion, proper preparation prior to overseeding will create an ideal environment for successful germination and growth.

Cool-Season Grasses:

Overseeding your lawn is a great way to improve its health and make it look lush. It’s important to pay special attention if you have a cool-season grass like Kentucky bluegrass or fescue.

The best time to overseed is usually either early spring or late summer. If you plan to overseed in the spring, it’s highly recommended that you apply a starter fertilizer first.

Doing this will give the new seedlings a boost of nutrition and give them the best possible start for stronger, healthier growth.

Setting your mower blade higher after overseeding can help protect the young seedlings and cultivate their growth.

Warm-Season Grasses:

If your lawn is comprised of warm-season grasses such as Bermuda or St. Augustine, then it’s important to consider overseeding in late summertime to ensure their continued growth come winter.

By overseeding during this time of year, the seeds can take root and begin to grow before the cooler temperatures set in, ensuring they are well established when the warmer weather arrives.

While cool-season grasses can handle being overseeded in the fall, overseeding warm-season grasses at this time will give them a head start on the colder months, resulting in a greater chance of survival throughout the winter season.

How to Overseed a Lawn

To ensure success in your lawn planting project, you will need to make sure you have the necessary tools and materials. A trowel or small shovel will be needed to create a hole for the seed you’ve chosen – bent-grass is a common option, though you may want to consider other types that do better in your area.

In addition to the seed, you will also need water and fertilizer, preferably Starter fertilizers like a liquid nitrogen fertilizer or a nutrient-packed cow manure compost tea with molasses added.

Adding some organic matter such as shredded leaves or straw mulch – if you have it on hand from last fall – can also help your seed take root and thrive. With all of these items, your lawn will soon be lush and vibrant!

1. Remove the old grass

To get rid of dead grass and debris that has built up on your lawn over time, a rake or shovel works for smaller amounts.

If the layer is particularly thick, however, it may be more efficient to use a power tool such as a sod cutter or lawn mower to remove the top layer.

This will create an even layer of soil to start from when planting grass seeds, and can help to revitalize an otherwise dull yard. For an even greater result, consider aerating your lawn as well.

Aeration helps to create a more hospitable environment for new grass to grow, and breaks up any soil compaction that may have occurred over the years. With these tools and steps combined, you’ll have the perfect lawn in no time.

2. Use a topdressing fertilizer

Applying a topdressing fertilizer is an excellent way to enhance the growing conditions for new growth.

Not only does it improve your soil’s fertility, but it also helps maximize the potential of your seed purchase by promoting quick and healthy germination.

To ensure optimal results, be sure to use the fertilizer at the recommended rate outlined on the product label.

Make sure that you apply the fertilizer evenly over the entire desired area and water it in thoroughly to make sure it’s properly absorbed into your soil.

By taking the time to properly apply a topdressing fertilizer, you can create the perfect environment for lush and vibrant growth with thriving plants.

3. Water the lawn

Watering is essential in aiding seed germination by providing the right conditions for growth.

It is important to water your lawn immediately after applying topdressing fertilizer because the softening of the soil helps the seeds to quickly penetrate it.

To ensure successful growth, keep up a regular watering schedule until you are sure that the seeds have sprouted and grown strong roots.

This will allow the newly germinated plants to thrive and grow healthily.

4. Spread the grass seed

When overseeding your lawn, it’s important to cover the area evenly and at the rate recommended on the seed product label.

To ensure the seed is applied correctly and prevent any thinning or bare spots, you can use a rake, broadcast spreader, or drop spreader.

If using a drop spreader, be sure to adjust it so that the right amount of seed is applied; too much seeding can cause the above issues.

The same goes for the rake and broadcast spreader; while they may require more effort and time, taking care not to over-seed will help prevent problems down the road.

With the right technique and amount of seed, your lawn should look great once the grass grows in!


Can you put grass seed on top of an existing lawn?

It’s ultimately your decision, however the outcome might not be as you expect. If you have a very light layer of existing grass on your lawn, it might be alright to simply spread some seed.

But, we can’t guarantee the results! To ensure the best outcome, we suggest that you remove any roots and weeds more than an inch deep, as well as laying down a blanket of weed barrier material before applying the seed.

This should help to prevent anything from growing through and competing with the new grass from gaining ground. We wish you the best of luck with your project.

What is the best time to overseed your lawn?

Springtime is the perfect opportunity to breathe life into your lawn. There’s no better way to start than by overseeding!

The ideal dates for overseeding in North America depend on your location.

For the Western Region you’ll want to overseed from April 15th to May 1st, while the Central Region should plan for March 31st to April 14th and the Eastern/Central Mountain Regions for March 10th to April 15th.

It’s important to wait until all chance of frost has passed and temperatures reach over 50 degrees Fahrenheit to ensure your seed has the best chance to establish itself.

Be sure to also check out any bare spots or weed patches that may have sprung up last season – they can be overseeded as well.

Lastly, don’t forget the right soil is essential for a successful overseed. Reviving an ordinary patch of grass with the help of overseeding can be the first step to turning your yard into a picturesque paradise this season.