Grass Seed Without Weeds

Overseeding your lawn will thicken the grass, helping it resist future weed invasion. However, it is best used on a lawn where the weeds are currently dormant How to grow lawn that is lush and full of grass. Checklist to grow a weed-free lawn. Growing a lawn without weeds is a dream for many homeowners. This checklist will help you keep the weeds away from your lawn while maintaining healthy grass and teach you how to make St Augustine grass thicker. For beautiful, healthy grass, it’s important that you apply the correct seed. Learn the best grass seed to use in northern Virginia, along with professional tips on seeding your lawn.

Will Overseeding Choke Out Weeds?

Overseeding your lawn will thicken the grass, helping it resist future weed invasion. However, it is best used on a lawn where the weeds are currently dormant or have recently been killed. Spreading grass seed on a weedy lawn won’t do much good. Weeds that are actively growing in your grass will steal water and nutrients from grass seedlings, causing them to struggle and die. For best results, attack lawn weeds with a weed killer, then overseed to create a healthy lawn that prevents weeds from returning.

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How Does Overseeding Help Prevent Weeds?

Overseeding your existing lawn with new grass seed fills in bare spots and contributes to thicker grass throughout the lawn. A thick grass lawn without bare spots shades the soil below, depriving weed seedlings of sunlight, killing them. Not only that, but thick growing grass pulls moisture and nutrients from the soil first, before weed seedlings can get to them.

  • Overseeding contributes to a thicker lawn.
  • Bare spots that have been overseeded with grass are less prone to weed invasion.
  • Lawns thickened by overseeding prevent weed seedlings from receiving sunlight and nutrients, smothering them.
  • Regular overseeding maintains a thick, weed-resistant lawn without herbicides.

Grass plants, like all plants, weaken and die naturally over time. By overseeding you replenish your lawn with new grass plants. This constant replenishment keeps your entire lawn thick enough that it continues to smother new weeds. This reduces the need to use chemical weed killers on your lawn.

Do You Need to Remove Weeds Before Overseeding?

Overseeding is most effective when you kill existing weeds before you overseed. This is because grass can’t choke out existing, established weeds no matter how thick it is. A lush lawn can only stop new weed seeds from sprouting. Also, any weeds that are present when you overseed will steal water, nutrients, and sunshine from your new grass seedlings. Wipe out the weeds to give your grass a fighting chance.

  • Remove existing weeds before you overseed.
  • Existing weeds won’t be killed or choked out by overseeding. A thick, overseeded lawn will only suppress new weed growth.
  • Kill established weeds or they will rob water and nutrients from your grass seedlings.

You’ll get more new grass sprouts from overseeding if you kill existing weeds first. Overseeding a lawn overgrown with weeds will get a poor yield. Your new grass will struggle to compete with the weeds. Paving the way for new grass by killing weeds is your best bet.

What is the Best Time of Year to Overseed a Weedy Lawn?

For the best results overseeding your lawn, you need to seed at the optimal time for your grass type. Warm-season grass lawns (such as Bermuda, Zoysia, and Centipede grass) should be overseeded in spring. Cool-season grasses (Kentucky Bluegrass, Fescue, Ryegrass) sprout and survive best when overseeded in fall.

  • Overseed warm-season grasses in spring.
  • Overseed cool-season grasses in fall.
  • It’s best to overseed when no weeds are present.

Another factor that makes overseeding in fall a great option for cool-season grass lawns is that few weeds will be present. Even if your lawn was infested with crabgrass in spring, by fall it will have begun to drop its seeds and die off. If you overseed in fall, your new grass will sprout and establish itself. By spring, the grass will be thick enough to prevent many of those crabgrass seeds from sprouting.

What is the Best Grass Seed to Use for Overseeding?

The best grass seed for overseeding is grass that will grow well in your climate. In regions with freezing winters, choose cool-season grass. In regions where winters seldom freeze, warm-season grass will perform best.

  • Seed with cool-season grass in regions with freezing winters.
  • In regions with mild winters, overseed with warm-season grass.
  • Match your grass seed to the variety of grass present in your lawn.
See also  Bulk Weed Seeds

It’s also important to note that overseeding is the act of spreading additional grass seed over an existing lawn. It’s usually best to overseed your lawn with the same species of grass that is present there. This will create a uniform, beautiful lawn.

What Grass Will Choke Out Weeds?

The best grasses for choking out weeds in your lawn depend on your location. If you are planting warm season grass and wish to have a weed-resistant lawn, Bermuda grass is your best choice. It spreads through runners and roots to take over areas, which prevents weeds from getting a toehold.

  • Bermuda grass is the best warm-season grass for choking out weeds.
  • Kentucky Bluegrass is the top option for battling weeds in cool-season grass lawns.

Kentucky Bluegrass spreads faster than any other cool-season grass. It produces roots that form new plants in both spring and fall, meaning it self-thickens and fills in bare spots. If you want to weedproof your northern lawn, go with KBG.

Will Overseeding Your Lawn Get Rid of Weeds?

Overseeding a weedy lawn will not kill weeds on its own. However, thick grass growth produced by overseeding prevents new weeds from sprouting. In order to keep your lawn weed-free with overseeding, first, kill any existing weeds, then prep your lawn and spread new grass seed. The thick growth of new grass will choke out new weed seedlings as they attempt to sprout.

How To Grow A Grass Lawn Without Weeds

Growing a lawn without weeds is a dream for many homeowners. While it’s probably unrealistic to have a lawn 100% free of weeds, you can aim to grow a thick, healthy stand of grass. That’s actually the easiest way to give weeds the brushoff: grow turf that’s so thick and strong that weeds can’t find an inch to take root. Follow this checklist to grow your healthiest grass ever.

Grow the Right Grass

Different grasses grow in different areas of the country. Warm-season grasses are usually grown in warmer, more southerly regions. Types include Bahiagrass, Bermudagrass, St. Augustinegrass and Zoysiagrass. Cool-season grasses are typically grown in cooler, more northerly regions. Types include Fescue, Kentucky Bluegrass and Ryegrass. Check with your local Cooperative Extension System office to learn which types of grass grow best in your area.

Mow Properly

Start by cutting grass with a sharp mower blade that cuts grass cleanly, without tearing or shredding. Proper mowing height depends on grass type. Vary your mowing pattern to avoid creating ruts in the lawn. Avoid mowing when soil is wet, or you risk tearing up grass and soil.

Water Correctly

Provide adequate moisture to grass, especially during episodes of drought or high temperatures. Provide deep, infrequent irrigation, which promotes healthy, deeper roots. Learn about lawn irrigation basics and how much grass actually needs.


Before you start a fertilizer program, do a soil test so you know you’re applying the correct blend of nutrients. In some parts of the country, soils may be acidic or alkaline and require additions of iron, magnesium or lime. Also, different types of grass need to be fertilized at different times of the year. Check with your local Cooperative Extension System office for help developing the right fertilizer program for your lawn.

Scout for Problems

Like any landscape planting, lawns can suffer from a variety of problems. Weeds, bare spots, insects and diseases can weaken and, if left untreated, even destroy a healthy lawn. Keep an eye out for problems in your lawn.

  • Deal with weeds when you first see them, because one weed leads to many more. Learn about the types of lawn weed killers and when to use each. Discover why fall weed control is key and how to do it successfully.
  • When a bare spot appears, figure out the cause and deal with it. Open soil extends an invitation to weeds, so repair bare spots as quickly as possible.
  • Scout for insect problems. Some of the signs to look for are skunks digging up lawn or flocks of birds feeding on turf. White Grubs are a common lawn pest. Discover the basics of dealing with Grubs.
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Aerate and Dethatch

Compacted soils don’t allow air and water to reach grass roots, which results in unhealthy grass.

Aerating helps relieve soil compaction.

When thatch builds up in a lawn, it can prevent water and fertilizer from reaching soil and provide refuge for insects.

What’s the Best Grass Seed for My Lawn in Northern Virginia?

When you picture the lawn of your dreams, you certainly aren’t picturing one with thinned out areas, discoloration, or weeds popping up. You’re imagining a lawn that the neighbors envy—that is, one that is thick, green, and weed-free.

While you likely know that various lawn care efforts go into making a lawn look that way (great lawns don’t just happen, they’re created), what you may not know is just how much impact the seed being used will have. In fact, you might even assume that all lawn care companies are using the same type of seed—but this just isn’t the case.

For beautiful, healthy grass, it is important that you make your seed selection wisely, which may mean turning to a professional for guidance. When it comes to choosing the best grass seed for Northern Virginia, we are here to guide you.

Choosing the Best Grass Seed for Northern Virginia

It’s very important to recognize that choosing grass seed is much more complex than just heading to the nearest box store and picking up a bag of seed. If you’ve been to a big box store and looked at seed, you already know there are an overwhelming number of types and brands of seeds.

A poor choice could leave you with more hassle than you started with. That’s because some seed blends contain filler (which can produce untreatable weeds). In addition, some turf types don’t work well in our region and yet they are still available to buy around here.

We understand how confusing these options can be for you.

But purchasing high-quality grass seed is really important. You don’t want to end up with weeds in your lawn due to using a low-quality product that has weed seeds mixed in. When homeowners see one or two bare spots in their yard, sometimes the inclination is just to grab a bag of seed and quickly take care of it themselves. But this really could do more harm than good by introducing unwanted weeds into your yard that will only spread.

Unfortunately, the grass seed purchased in big box stores is simply not going to be of the same high quality as that which is used by a reputable landscape professional.

The word “reputable” is important there. While we’d like to say that no so-called professional would ever use low-quality grass seed, the fact is, many do it to cut cost. This is certainly taking advantage of homeowners who don’t recognize that there is a difference between seed quality and it, unfortunately, happens all the time.

Even professionals get what they pay for. And the products available to them vary in price and quality as well.

The Best Northern Virginia Grass Types

So what type of grass should be used for Northern Virginia lawns?

Without a doubt, turf-type tall fescue is the best-adapted turfgrass for Northern Virginia lawns. That’s because it tends to have the deepest root system of the different types of cool-season grasses. It can use water from deeper within the soil and therefore resist drought and continue to perform well in a variety of weather conditions.

But with more than 100 cultivars of tall fescue, there are even choices within this category.

To dig even deeper, you specifically want to know, what is the best grass seed for Northern Virginia?

At Turf’s Up, we are using a top-rated blue-tag fescue, which is ideally suited to our region. The seed selection that we’ve made is based on years of studies performed by researchers like those at Virginia Tech. This particular grass seed has been studied and proven to be a top performer.

See also  Weed With Lots Of Seeds

The specific commercial-grade product that we’ve chosen is a blended turf-type tall fescue, meaning that it is not a single cultivar, but instead, several in order to provide the best possible performance.

The blue tag certification means that it contains no weed filler.

In addition, this particular seed is also special because it is coated in starter fertilizer in order to provide faster germination. Our grass is usually growing in a third of the time of most grass seeds—often times as quickly as within a week. Average grass seed is going to take as long as 3 weeks to even start growing.

Encouraging Grass to Grow with Supporting Services

Of course, actually getting your grass off to the best possible start requires more than just tossing down some seed. Your professional lawn care company should also perform valuable services like lawn aeration and topdressing to start your lawn the right way.

A lawn aeration service is performed by running a commercial-grade aerator across your lawn. At Turf’s Up, we always do a double pass giving you the best possible results. We find that a lot of our competitors do not perform a double pass when aerating.

The best time to seed the lawn is immediately following lawn aeration when the seeds can fall into the holes that we created in the lawn.

The fall weather provides the ideal conditions for seed germination, increasing the odds that your new grass will survive and mature. To perform a lawn seeding service, we use push spreaders that are correctly set to properly seed your lawn at five pounds per thousand square feet.

Finally, in order to achieve the best possible results, topdressing the lawn with compost is a lawn service best-performed right after aeration and overseeding. The idea is for the compost to mix with the existing clay soil.

Topdressing is a lawn care secret that many haven’t heard of, but it has long been a standard practice in the golf course industry. These days many more homeowners are using a topdressing service to achieve the lush green lawn they desire.

Topdressing is a great way to build a healthy balance in your soil by increasing healthy soil microorganisms, all while improving soil structure.

When is the Best Time to Plant Grass in Northern Virginia?

Seeding is best done in the fall because the weather conditions are ideal for new grass growth. While the soil is still warm, the air is cool. This provides the best possible growing conditions for seed germination which, in turn, improves the chance of new grass survival.

To be even more specific, the best time to plant grass in Virginia is between September 1 and October 31, but that’s not to say that we wouldn’t go a little later. The trouble is, as we get into November, the temperatures begin to drop more rapidly.

If we were to perform seeding after October 31, we’d likely use a process called slit seeding (or “slice seeding”).

This method utilizes a piece of machinery called a slit seeder to make ½ inch to 1-inch deep slices in the ground with its vertical blades. Grass seed is then dropped into these slices. By creating these deep slices, the seed ends up in contact with the soil, where it will germinate best. With slit seeding, the new grass seed will be more protected from the colder temperatures.

Achieving the Lawn of Your Dreams

The best lawns begin with the best seed—and the specialized attention of a professional who knows how to grow grass as well as care for it as it grows and matures.

By choosing Turf’s Up for seeding and other lawn care needs at your Northern Virginia home, you can ensure that you’re getting the best possible seed on the market for our region. You can also be sure that your lawn is getting the care and attention that it needs to thrive. When it comes to having the lawn of your dreams, you need nothing less than the best.

If you’re ready to have the lawn of your dreams at your Ashburn, Aldie, or Leesburg, VA home, talk to an expert, choose a solution, and get ready to watch that dream take shape today.