How Long Does It Take for Grass to Grow? | Grass Master Lawn Care (2024)

Most grass seed will start growing in about 10-14 days, but sometimes it can take up to 30 days. When you’re planting new grass seed in your yard, it can seem like it’s taking forever to start sprouting.

Factors That Affect How Long It Takes Grass To Grow

When you find yourself wondering, “seriously, how long does it take for grass to grow?!” just keep in mind a few factors that will affect the process:

  • Type of grass seed
  • Grass germination time
  • Weather conditions
  • Soil preparation & conditions

Learn more about how each of these growth factors will influence the time it takes for your new grass to grow.

Type of Grass Seed

How long it takes for grass seed to grow depends, of course, on the type of grass seed you’re using. Here in Northeast Ohio, most grass seed is what’s referred to as cool-season grasses. That type of grass seed grows best between 60 and 75 degrees Fahrenheit.

Some of the most common cool-season grasses in the Northeast Ohio area include Kentucky Bluegrass, Bentgrass, Ryegrass, and Fescue.

The best time to plant cool-season grasses is either in early spring or fall, when the plants are not subject to the often-excessive heat and drying conditions of summer.

Another growth factor in the time it takes for grass seed to grow is grass germination time. Germination is the process of a seed growing into a plant. The amount of time it takes for new grass to sprout, or germinate, from seed varies by grass seed type.

  • Ryegrass: Ryegrass seeds usually grow in 5-10 days
  • Fescue: Fescue seeds usually grow in 7-14 days
  • Bentgrass: Bentgrass seeds usually grow in 10-14 days
  • Kentucky Bluegrass: Kentucky Bluegrass seeds usually grow in 14-30 days

Weather

The weather conditions can affect how long it takes for grass to grow. Two of the most common factors that slow down grass growth are cooler than normal temperatures and overwatering from heavy spring rains.

You can’t necessarily avoid cooler than normal temperatures or heavy rain, but it’s a good idea to look at the long-range forecast before planting.

As mentioned previously, Northern Ohio cool-season grass grows best between 60 and 75 degrees Fahrenheit. Planting during these temperatures may give you better results.

Soil Preparation and Conditions

In addition to ideal weather, monitor your grass soil conditions. Soil pH can affect how long it takes for grass to grow. Cool-season grasses prefer a soil pH in the 6.0 to 7.2 range.

To try to give your grass optimal watering conditions, water your soil a few days before adding grass seed. Saturate the ground to a depth of six to eight inches. After planting, water your grass seed one to two times per day, unless rainfall is keeping the soil moist.

And don’t forget to monitor for yard pests. These critters can inhibit grass health and growth. Protect vulnerable grass seed from hungry pests or destructive bugs to help your grass grow faster.

Help With Growing New Grass from Grass Seed

If you are trying to improve how long it takes for grass seed to grow, keep in mind the factors listed above and do what you can to provide the best conditions.

Plant during mild temperatures, using your preferred type of grass seed. Keep the soil moist but not too wet, and reach out for help if you need it.

For assistance with fertilization or pest control, the Grass Master offers our deluxe lawn care package, which offers fertilization, weed and pest control. We also offer more specific services.

For more lawn care tips from Grass Master, check out the information here.

How Long Does It Take for Grass to Grow? | Grass Master Lawn Care (2024)

FAQs

How Long Does It Take for Grass to Grow? | Grass Master Lawn Care? ›

Typically, you will notice results within 7-10 days after the application is applied. My neighbor and I each use Grass Master and they've received more treatments than me. Did you forget about my lawn?

How long does it take for new grass to fully grow? ›

Whether you're repairing bare spots, overseeding an existing lawn or starting from scratch, you can generally expect grass seedlings to emerge within seven to 21 days when grown under proper conditions. It may take another three to four weeks of growth before grass is long enough to mow.

How long does it take to see results from lawn fertilizer? ›

How Long Does It Take Lawn Fertilizer to Work?
Fertilizer TypeEstimated Time to Work
Fast-Release Synthetic Fertilizers1-2 days
Fast-Release Organic Fertilizers2-3 days
Slow-Release Synthetic Fertilizers2-5 days
Slow-Release Organic Fertilizers2-6 weeks
Nov 1, 2023

Can I just throw grass seed on bare spots? ›

Can I Just Throw Grass Seed on Bare Spots? Throwing grass seed onto bare spots will result in little-to-no germination and will not help to repair lawn spots. If you want to fix patches on grass, you need to properly prepare the bare spots before laying down the seed.

Can I just throw grass seed down on an existing lawn? ›

When you just sprinkle grass seed on an existing lawn, it ends up just sitting atop of the soil and a lot of it may never germinate. Then homeowners end up asking the question, why can't I get my grass to grow? In reality, the best practice is to have lawn aeration performed followed by overseeding the lawn.

How can I speed up my new grass growth? ›

Seed and Feed

One of the most effective ways to get your grass to grow quickly is to fertilize right after you plant. For use on all grass types, reach for Scotts® Turf Builder® Starter® Food for New Grass, which helps grass grow up to 70 percent thicker and 35 percent more quickly (vs. unfed).

How often should I water new grass seed? ›

With new grass seed, the aim is to keep the soil moist. Waterlogged soil will suffocate the new seeds. It is best to water the grass seedlings 2 to 3 times a day for about 5 to 10 minutes each time. This way you replace any water that has evaporated without oversaturation.

Can you walk on grass after fertilizing? ›

Allow 24-48 hours, depending on the label, after applying most synthetic fertilizers before any pets, kids or pregnant women walk on the lawn. Water the lawn and allow to completely dry before using the lawn after fertilizing.

Do you water grass immediately after fertilizing? ›

It depends on the fertilizer. Some lawn foods perform better when you water them in right after applying, while others—such as some weed-and-feed products—need to be watered a day or two after fertilizing. It all comes down to this: Check the product directions on the bag—they'll tell you when to water.

Should you water grass everyday after fertilizing? ›

You've Watered after Fertilizing — Now What? After this initial watering, avoid watering your lawn for a couple days so the nutrients can settle in. Then, return to your regular lawn-watering schedule, and remember these tips: Don't water every day.

What happens if I put too much grass seed down? ›

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.

Should I put topsoil over grass seed? ›

Will grass seed germinate on top of the soil? Yes; in fact, germination will suffer if too much soil is placed on top of the seeds. The experts at Jonathan Green recommend placing a thin layer of mulch or topsoil over them to help keep them moist and warm and promote growth.

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

If you simply toss the grass seed onto the soil, you will end up with poor germination. Thoroughly rake the area to remove any loose debris and to create grooves in the soil. These grooves will help increase the seed-to-soil contact that is imperative for germination.

Do you put anything over grass seed? ›

Don't cover grass seed with topsoil. The seed needs light to germinate. Instead, you should put topsoil down before grass seed (a thin layer is sufficient), or you should mix grass seed with topsoil. To protect the seed from birds and washing away, use straw (weed-free) or an erosion-control blanket.

What to put on top of new grass seed? ›

After planting the grass seed, cover the seeded area with Seeding Success pellets. Carefully apply these pellets to cover approximately one-fourth of the seeded ground. This ensures that the seeds are sufficiently covered without being overwhelmed.

Should new grass seed be buried? ›

Once you finish spreading the seed, use a rake to lightly work it into the soil at a depth of about 1/4 inch. Don't bury the seeds any deeper; grass seed needs adequate light to germinate quickly. After raking, pass over the area with a roller, which helps ensure the good seed-to-soil contact your new seed needs.

Will new grass spread on its own? ›

It depends on the type of grass. Kentucky bluegrass has runners that help it spread on its own. But many northern grasses are bunch-type grasses which don't spread, so seeding is needed to fill in bare spots. Perennial ryegrass and fescue are among the non-spreaders.

Can you walk on newly grown grass? ›

Newly seeded areas should be restricted from foot traffic for a least a month after the seed has germinated or until the new lawn has been mowed at least a couple of times.

Does cutting new grass make it grow faster? ›

When you prevent the grass from growing vertically (skywards), it converts that energy into growing horizontally (along the ground). The end result is thicker grass. This is why mowing new grass frequently helps it to grow from patchy little tufts to even coverage in a shorter space of time.

Can you over water new grass? ›

Initially, new grass seed demands consistent moisture to germinate. Fail to meet this need and you risk growing a patchy lawn. Provide too much water, and you may drown or wash away your seedlings. The golden rule of thumb is to keep the topsoil of newly seeded areas moist, not drenched.

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