3.6 out of 5 Customer Rating
Scotts® Turf Builder® Rapid Grass Sun & Shade Mix® is rated 3.8 out of 5 by 320.
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Scotts

Turf Builder Rapid Grass Sun & Shade Mix

$43.99
3.6 out of 5 Customer Rating
Scotts® Turf Builder® Rapid Grass Sun & Shade Mix® is rated 3.8 out of 5 by 320.
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Scotts

Turf Builder Rapid Grass Sun & Shade Mix

$43.99

Want a beautiful lawn, like, yesterday? Rapid Grass is the fastest way to get there. Our unique seed and fertilizer combination grows grass fast. You'll see a full, green lawn in just a few weeks. It's the speed you want and the quality you expect.

18213

Key Features

  • GROWS 2X FASTER: We've combined our high-performance seed and fertilizer into a mix that grows grass 2X faster than seed alone when applied at the new lawn rate (subject to proper care)
  • A LAWN IN JUST WEEKS: This isn't your average grass seed. Our formula is designed for speed, so you can go from bare ground to a thick, green lawn in just weeks
  • WORKS IN SUN AND SHADE: Don't stress about your yard's tricky spots; this versatile mix is made to grow a thick, beautiful lawn in areas with a lot of sun or a little shade

Let's be real, when you want a new lawn, you want it now. That's why we created Scotts Turf Builder Rapid Grass Sun & Shade Mix. We've supercharged our high-performance seed by combining it with a specially designed fertilizer, creating a formula that grows grass 2X faster than seed alone*. Whether you're starting a new lawn from scratch or overseeding an existing one, you'll see a thick, green lawn start to come in after just a few weeks. It’s a revolutionary product that gives you the beautiful lawn you want, faster than you thought possible. *when applied at the new lawn rate, subject to proper care

Fertilizer Analysis: 13-0-0 NPK

Grass Type(s): Contains Kentucky bluegrass, perennial ryegrass, creeping red fescue, and chewing fescue

Coverage:

  • New Lawn: 835 sq. ft.
  • Overseeding: 2,800 sq. ft.

SKU: 18213

Product Label

Safety data sheet can be found at: https://www.scottsmsds.com

Where to Use: This is your secret weapon for starting a new lawn from scratch or thickening up a thin one. It’s perfect for those typical lawns that get a mix of sun and shade throughout the day.

How to Use: Use it to start a brand new lawn or to thicken up the one you've already got.

When to Use: The sweet spot for planting is spring or fall. Aim for those nice, mild days when the temperature is hovering between 60°F and 80°F.

How Often to Use: For best results, overseed your lawn with this product once a year to keep it thick and healthy.

For a New Lawn:

  1. Get the Ground Ready: Grab a rake and loosen up the top couple of inches of soil, clearing out any rocks or dead grass.
  2. Spread the Good Stuff: Pour the product into your Scotts spreader, dial in the "New Lawn" setting, and apply it evenly.
  3. Gently Tuck it In: Lightly rake the seed and fertilizer mix into the top layer of soil. You just want it barely covered.
  4. Give it a Drink: This part is key. Water daily (or as needed) to keep the soil moist until the new grass is at least 2 inches tall.

For Overseeding:

  1. Get Your Lawn Ready: Mow your lawn nice and short (about 2 inches). Then, give it a good rake to loosen the soil and clear out any dead stuff.
  2. Time to Spread: Fill up your spreader, set it to the "Overseeding" setting, and walk at a steady pace to get even coverage.
  3. Just Add Water: Water every day, or as needed, to keep the soil damp until the new seedlings are at least 2 inches tall.

New Lawn:

  • Scotts Broadcast/Rotary Spreaders: 15
  • Scotts Hand-Held Spreaders: 5 (4 passes)
  • Scotts Drop Spreaders: 16 1/2 (4 passes)
  • Scotts Wizz Spreader: 6 (2 passes)
  • Scotts Elite Spreader: 11

Overseeding:

  • Scotts Broadcast/Rotary Spreaders: 6
  • Scotts Hand-Held Spreaders: 5
  • Scotts Drop Spreaders: 17
  • Scotts Wizz Spreader: 5 1/4
  • Scotts Elite Spreader: 7

To get that grass to pop up fast, you'll want to water it twice a day for the first three weeks. An automatic timer can be a real lifesaver here. The goal is to keep the soil consistently moist, not to create a swamp.

  • Give the Mower a Break: We know you're eager to mow, but let the new grass grow to about 3 inches before its first trim.
  • Keep it Fed: To keep that awesome new lawn looking its best, give it a good meal every 8 weeks with a Scotts Lawn Food product.
  • Store it Smart: Keep any leftovers in the original bag and store it somewhere cool and dry, away from kids and pets.
  • Keep it Tidy: If any product ends up on your driveway or sidewalk, just sweep it back onto the lawn. This helps keep our local waterways clean.
  • Hold Off on Weed Control: Give your new grass a chance to get established. Wait until you've mowed it at least four times before you think about applying any weed control

Frequently Asked Questions

How do I store leftover product?

Got some left over? No sweat. Just keep it in the original bag and store it in a cool, dry place like the garage or shed, safely away from kids and pets.

Patience is tough, but you'll see green shoots in about 12 days. In just a few weeks, you'll really see it start to fill in and look like a proper lawn.

This stuff is designed for big projects—seeding a new lawn or overseeding your current one. For those little bare patches, we'd point you to Scotts EZ Seed Patch & Repair. It’s the specialist for small jobs.

It's all about our secret recipe. We combined our best grass seed with a jump-start fertilizer. It gives the seed everything it needs to get growing in a hurry, so you're not waiting around.

Rated 5 out of 5 by from Botta bing botta bang the rapid grass took off! Followed instructions the best I could and the rapid grass was indeed rapid and is coming along quite well.
Date published: 2025-09-16
Rated 5 out of 5 by from Worked great! Fantastic! I just did the first mow on new grass. Four weeks from seeding to mowing!
Date published: 2025-06-24
Rated 5 out of 5 by from Worked Great I reseeded a section of our backyard that had very little grass. I aerated and loosened the top inch of the soil. I also added 3 pages of Scotts topsoil. After spreading, I raked the seed into the soil and covered the area with straw (we live in the woods with rodents and birds galore). Six weeks later and the new grass is plush and thick. I've mowed it 3 times. I also used some leftover seed to repair a dozen urine spots, and it has worked well filling these in. I'm pleased with this product and will continue using it.
Date published: 2025-06-09
Rated 5 out of 5 by from Fast results I prepared the soil by thatching the soil. Two weeks later the grass in coming up nicely! I am so excited! Great product!
Date published: 2024-10-09
Rated 5 out of 5 by from Product works great! I bought this a month ago and it germinated in 5 days.
Date published: 2024-09-14
Rated 5 out of 5 by from Awesome product Rye came up in 5 days. Red fescue next in about 10 days. I’m on day 16 and blue grass is 1/2 way up. I always have used Scott’s my entire life (I’m 65) and have always had great results seating my lawn with Scott products.
Date published: 2024-07-14
Rated 5 out of 5 by from Unbelievably Excellent Product!!!! I bought this product from Walmart in Cheyenne, WY and it’s coming in great! If you follow the directions I don’t see how you can fail. I had grass blades growing in about a week! Unbelievable product! Have already recommended it to friends.
Date published: 2024-06-27
Rated 5 out of 5 by from Very nice grass seed I will buy more this fall I planted the tall fescue last fall and it came up nicely. Now in the spring and early summer it looks like the rest of my grass. It blended well and is nice and mature. Other grasses I tried in the past would not look this good for another season. I like it.
Date published: 2024-06-13
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