How to Grow Grass Fast (2024)

Want to grow a lawn without having to wait forever for it to fill in? If you're hoping to grow grass fast, hang with us, and don't be intimidated or confused—we're here to help! While you might not think that you can grow grass fast by using grass seed, you absolutely can if you know what you're doing and use the right products. Just follow these 5 basic steps on how to grow grass fast and you'll be on track to growing a beautiful lawn.

  1. Choose the right seed
  2. Prep the soil
  3. Seed and feed
  4. Water and protect the grass
  5. Mow the right way

1. Choose the Right Seed

Not all grass seed is created equal. We bet you already know this from looking at all the different types of grass seed out there. In most cases, when shopping for grass seed you'll be choosing between cool season or warm season grasses - depending on where you live. Cool season grasses grow best where there are large temperature swings during the year, including in the Northwest, Midwest, and Northeast. Warm season grasses thrive in warm weather where there's less of a temperature difference, including the Southwest, Deep South, and Mid-South. (If you're not sure which type you need, read this article.)

Once you've figured out which grass seed is best for your area, it's time to choose your seed. The Scotts® Turf Builder® line of grass seeds offers premium grass seed for most popular lawn types. Each Scotts seed jumpstarts growth with high performance fertilizer, and helps protect against disease. The result? Grass will grow thicker, greener, and more quickly.

To really speed up the results, apply Scotts® Turf Builder Rapid Grass Sun & Shade Mix®, following label directions. It packs both grass seed and lawn food into one handy formula designed to grow grass twice as fast as seed on its own. You can use it to put down a new lawn or to overseed a thin lawn. Just rake the soil, apply the product with your spreader, and water daily until the grass reaches mowing height.

2. Prep the Soil

We know it's exciting to get out there andsow grass seed, but there are a few important things to do first:

  • Start by removing any existing grass, weeds, and large rocks from the area you're planning to plant.
  • Fill in low spots with soil (such asScotts® Turf Builder® LawnSoil™), and if your existing soil is really compacted, consider renting a tiller and loosening everything up.
  • Finish by using a hard rake to even everything out—then give yourself a huge pat on the back, because soil prep requires the most elbow grease!

3. Seed and Feed

You might be wondering how to grow grass fast. 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). If you live in the North, consider opting for Scotts® Turf Builder® Triple Action Built for Seeding instead, as it will encourage new grass to grow strong and thick while also preventing many common weeds, like dandelion and crabgrass, for up to 6 months.

To apply both seed and feed easily and efficiently, you'll want to use a spreader. If you've got a small lawn, use the Scotts® Whirl™ Hand-Powered Spreader, which covers up to 1,500 square feet smoothly and evenly. Have a larger space? The Scotts® Turf Builder® EdgeGuard® DLX Broadcast Spreader will be your go-to, holding up to 15,000 sq. ft. of product.

As with any product, be sure to read the package directions carefully. This is no time to guess or eyeball. Package directions will tell you how much product to use for proper grass seed coverage, how to spread it, and when to spread it so that you can grow grass fast and get the best results.

4. Water and Protect the Grass

It's critically important to keep your seeded area watered, but you want to do it incrementally as the grass develops. Wondering how often to water new grass seed? Use a "mist – lightly water – deeply water" process like this:

  • After seeding and fertilizing, you'll want to keep the top inch of soil moist until the seeds start to germinate (aka sprout). This means misting the area once a day, maybe twice if it's unusually hot out there—but don't let the area get soggy.
  • After seeds begin to germinate, you'll need to keep the top 2 inches of soil moist with light watering until the grass is about 3 inches tall.
  • At this point, your grass is developing its root structure, so you want to begin watering deeply so that moisture reaches down through the top 6 to 8 inches of soil.

As you're watering and the grass is growing, you'll want to keep foot traffic and pet action to an absolute minimum (avoid rousing games of fetch and tag, for example). Plan to keep people and pets off the grass for at least a month, during which time your other yard spaces or nearby parks will become your best friends.

5. Mow the Right Way

When that new grass is 3 inches tall, you can start mowing, but remember to adjust your mower to a high setting and never remove more than 1/3 of the grass blades. If you mow too low, you'll be inviting weeds in—and we're guessing that's not part of your lush lawn vision.

Seems pretty simple, right? That's because it is! If you follow these five steps, it won't be long before your yard is transformed into a lush oasis of green.

How to Grow Grass Fast (2024)

FAQs

How can I speed up the growth of grass? ›

Having constant access to moisture will make sure your grass seeds grow faster, thanks to having the proper environment for growth. When your grass becomes fully established, you should use more water, less often to help encourage good root development. A rule of 1 inch of water per all areas is a good starting point.

How can I make my lawn grow faster? ›

One of the fastest ways to have an established, lush lawn is to install sod rather than seed. This near-instant grass is satisfying, but it's not without work. The soil must be prepared as above, and it must be even and with plenty of good drainage.

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 grow grass in 10 days? ›

The time it takes for grass to grow after seeding can vary based on factors such as grass type, weather conditions, and proper care. In general, you can expect to see germination within 7 to 21 days after seeding. However, achieving a fully established lawn typically takes several weeks to a few months.

Does cutting grass help it spread? ›

Mowing actually helps make your grass grow thicker because the tip of each blade contains hormones that suppress horizontal growth. When you cut the lawn, you remove these tips allowing the grass to spread and grow thicker near the roots.

What month is best to put grass seed down? ›

The best month to put grass seed down depends on the type of grass you have and where you live. The best time to plant grass seed for cool-season grasses is in early fall or around September. For warm-season grasses, late spring or early summer (May to June) is the optimal time.

What makes grass grow super fast? ›

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).

What is the quickest method of developing a lawn? ›

Turfing: This is the quickest method of making a lawn within a very short period. The intact pieces of uniform thickness of turf with soil are taken from the place where grass is compact and free from weeds. Then these pieces of carpets are spread on the ground evenly and covered with fine soil followed by watering.

What not to do when growing grass? ›

Even if you're a first-time lawn grower, you can seed right and avoid these common mistakes:
  1. Planting the wrong type of seed.
  2. Skipping the soil test and recommendations.
  3. Using lime incorrectly or unnecessarily.
  4. Ignoring recommended seeding rates.
  5. Miscalculating your lawn dimensions.
  6. Planting without regard for proper timing.

Should I put topsoil over grass seed? ›

Along with planting grass, there are additional tasks that can be completed to protect and help the grass grow well. Many think that putting topsoil over the seeds would protect it, but in fact, that will actually suffocate the seedlings rather than doing any good.

Can I just throw out grass seed? ›

While throwing seeds down can work in very specific scenarios, overseeding is the recommended approach for most lawns. Let's break down the differences: Throwing Seeds Down: A quick but less effective method with lower germination rates and the potential for patchy results.

Does putting grass clippings on bare spots help grass grow? ›

Leaving them behind when you mow, also known as grasscycling, can help build a healthy lawn. Contrary to popular belief, clippings do not lead to thatch buildup, which damages the grass. Instead, they can act as a natural fertilizer, reducing the need for additional nitrogen fertilizer.

How often should I water grass seed? ›

Normally a lawn should be watered deeply but infrequently, but when you are watering for new grass seed, you must water every day. Set automatic timers for about 5 to 10 minutes, early in the morning, and again at mid-day. Watering done by hand or hose-end sprinklers must be consistent and evenly applied.

What temperature kills grass seed? ›

If the daytime temperature is below 60°F then soil temperature is below 50°F, making it too cold; if there is frost or still a danger of frost, then it's too cold. If it's too cold, the grass seeds will likely rot.

What's the quickest growing grass seed? ›

One of the fastest-growing grass seed types is Perennial Ryegrass; this germinates in 5-10 days and will show baby grass plant shots appearing in your soil during this time. Other grass types, such as Bent and Fescues, can germinate quickly but require a higher ground temperature.

What fertilizer makes grass grow faster? ›

Fast release Lawn Fertilizer
  1. Ironite. Mineral Supplement 15-lb 5000-sq ft 1-0-0 Fertilizer.
  2. Scotts. Liquid Turf Builder Plus 2 Weed Control 32-fl oz 6000-sq ft 25-0-2 All-purpose Weed & Feed Liquid Fertilizer.
  3. Scotts. Turf Builder Healthy Plus Lawn Food 13.7-lb 4000-sq ft 19-0-10 All-purpose Fertilizer.

Does frequent mowing thicken grass? ›

Mow Properly

Using best practices for mowing helps your grass grow thick and stay that way. Rather than mowing based on your weekly calendar, mow according to grass needs. Mow often enough to maintain your grass type at its recommended mowing height without removing more than one-third of the height in a single mowing.

Does grass grow back faster when cut short? ›

The theory that cutting short lengthens the time between cuts also doesn't hold up. Grass grows faster after it's been cut short as it tries to rebuild itself to its genetic norm. A good in-season height for most turfgrasses is 2½ to 3 inches — typically the highest setting on mowers.

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