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frontpage Posted by phoinix | Staff • Jun 16, 2025
frontpage Posted by phoinix | Staff • Jun 16, 2025

13.35-lbs Scotts Turf Builder Halts Crabgrass Preventer w/ Lawn Food

$20

$41

51% off
Amazon
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Deal Details
Amazon has 13.35-lbs Scotts Turf Builder Halts Crabgrass Preventer w/ Lawn Food on sale for $19.97. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter phoinix for finding this deal.

Features:
  • Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food stops crabgrass before it invades and feeds grass for a fast green-up after winter
  • Prevents listed weeds including crabgrass, barnyard grass, foxtail, poa annua, chickweed, and oxalis
  • Apply pre-emergent weed killer plus fertilizer to a dry lawn in early spring (before the 3rd or 4th mowing) before temperatures are regularly in the 80s
  • Rain, snow, or freezing conditions after application will not affect product performance
  • One 13.35 lb. bag of Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food covers 5,000 sq. ft.

Editor's Notes

Written by SlickDealio | Staff
  • About the deal:
    • This price matches our popular +93 Frontpage deal from March.
    • This product has a rating of 4.5 out of 5 stars, based on over 6,500 Amazon customer reviews.
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion. 
  • About the store:

Original Post

Written by phoinix | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has 13.35-lbs Scotts Turf Builder Halts Crabgrass Preventer w/ Lawn Food on sale for $19.97. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter phoinix for finding this deal.

Features:
  • Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food stops crabgrass before it invades and feeds grass for a fast green-up after winter
  • Prevents listed weeds including crabgrass, barnyard grass, foxtail, poa annua, chickweed, and oxalis
  • Apply pre-emergent weed killer plus fertilizer to a dry lawn in early spring (before the 3rd or 4th mowing) before temperatures are regularly in the 80s
  • Rain, snow, or freezing conditions after application will not affect product performance
  • One 13.35 lb. bag of Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food covers 5,000 sq. ft.

Editor's Notes

Written by SlickDealio | Staff
  • About the deal:
    • This price matches our popular +93 Frontpage deal from March.
    • This product has a rating of 4.5 out of 5 stars, based on over 6,500 Amazon customer reviews.
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion. 
  • About the store:

Original Post

Written by phoinix | Staff

Community Voting

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+26
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Top Comments

SweetT23
668 Posts
1511 Reputation
Crab grass dies in the winter, here in the south in NC this product needs to go down around mid February usually, when there is forsythia blooming as mentioned. This acts as a blanket so to speak and it prevents the crabgrass seeds from germinating. Before you put it down you can get down close and look at your lawn and you'll see tiny little green sprigs everywhere if it has already sprouted. If you see it at all then you are too late and this product is useless.

If you already have it then what you want is Quinclorac. It expensive but it works. You don't need name brand, any Quinclorac powder will do. I mix 1 TBSP per gallon and it kills the crabgrass dead. You'll see it all turn yellow and die within two weeks. I have bermudagrass it doesn't harm it. If you're putting that down, add in some 2-4D at 1oz/gallon. That kills every broadleaf weed. That's much cheaper than Quinclorac, which usually costs about $65-$70 for a seasons worth. 2-4D is about $20 for a gallon, which yields 16 gallons. One more thing I put in mine is MSM powder which kills ryegrass. I mix all 3 together and spray it about once every 4-6 weeks because my neighbors have a yard of weeds that blow over and it kills every single weed, ryegrass, and crabgrass. I used to work for Scott's back in the day.
bgtimber75
430 Posts
29 Reputation
I'm not lawn expert but I believe if you put this down in early spring it acts a a pre-emergent and stops the crab grass from germinating. Once it's germinated this does nothing to kill it.

24 Comments

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Jun 16, 2025
1,666 Posts
Joined May 2006
Jun 16, 2025
ric0suave
Jun 16, 2025
1,666 Posts
Save a little bit more with the larger size and going S&S.
Jun 16, 2025
45 Posts
Joined Jan 2022

This comment has been rated as unhelpful by Slickdeals users.

Jun 16, 2025
63 Posts
Joined May 2013
Jun 16, 2025
svollm
Jun 16, 2025
63 Posts
Cheaper on sale at home depot, boo
Jun 16, 2025
403 Posts
Joined May 2009
Jun 16, 2025
DL_
Jun 16, 2025
403 Posts
if my lawn is already growing a bunch of crabgrass will this kill/control it? or is this more pre-emergent
Jun 16, 2025
324 Posts
Joined Feb 2018
Jun 16, 2025
reinkespi
Jun 16, 2025
324 Posts
Quote from DL_ :
if my lawn is already growing a bunch of crabgrass will this kill/control it? or is this more pre-emergent

I do not think it will kill existing crabgrass. Use a Scott's crab grass pre-emergent early next spring. Once crabgrass takes hold, my understanding is you usually have to spray it or pick it.
Jun 16, 2025
430 Posts
Joined Oct 2011
Jun 16, 2025
bgtimber75
Jun 16, 2025
430 Posts
Quote from reinkespi :
I do not think it will kill existing crabgrass. Use a Scott's crab grass pre-emergent early next spring. Once crabgrass takes hold, my understanding is you usually have to spray it or pick it.
I'm not lawn expert but I believe if you put this down in early spring it acts a a pre-emergent and stops the crab grass from germinating. Once it's germinated this does nothing to kill it.
Jun 16, 2025
665 Posts
Joined Feb 2016
Jun 16, 2025
jeff11214
Jun 16, 2025
665 Posts
Quote from DL_ :
if my lawn is already growing a bunch of crabgrass will this kill/control it? or is this more pre-emergent
This is a pre-emergent to be used in early spring. Works really well. This is what I use.

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Jun 16, 2025
6,157 Posts
Joined Dec 2009
Jun 16, 2025
wwjrd
Jun 16, 2025
6,157 Posts
What is even the active ingredient? It's usually in a box on the front bottom but nothing in the photos and I didn't see "active" in a quick scan...

This could easily help or kill any random lawn.
Jun 16, 2025
4,570 Posts
Joined Dec 2004
Jun 16, 2025
Deal Explorer
Jun 16, 2025
4,570 Posts
Quote from DL_ :
if my lawn is already growing a bunch of crabgrass will this kill/control it? or is this more pre-emergent
Quote from reinkespi :
I do not think it will kill existing crabgrass. Use a Scott's crab grass pre-emergent early next spring. Once crabgrass takes hold, my understanding is you usually have to spray it or pick it.
Use winter fertilizer in the late fall, then pre-emergent in the early spring. I did that and have no crab grass so far. It was pretty bad last year.
I've heard that Spectracide has a good spray-on weed killer that you can use once they have already emerged. I've seen it in Home Depot. Wish I'd used it last year.
Jun 17, 2025
603 Posts
Joined Jan 2015
Jun 17, 2025
bookerttt
Jun 17, 2025
603 Posts
Quote from DL_ :
if my lawn is already growing a bunch of crabgrass will this kill/control it? or is this more pre-emergent

It's a pre-emergent. Time to put it down in the spring has to do with soil temps.

It's pretty much when the forsythia at your house or neighbors on same side of street have bloomed and started to fall. If I remember correctly you have about 10-15 days after the forsythia blooms.
Jun 17, 2025
603 Posts
Joined Jan 2015
Jun 17, 2025
bookerttt
Jun 17, 2025
603 Posts
Quote from bookerttt :
It's a pre-emergent. Time to put it down in the spring has to do with soil temps.

It's pretty much when the forsythia at your house or neighbors on same side of street have bloomed and started to fall. If I remember correctly you have about 10-15 days after the forsythia blooms.

Above note is for cool season grasses and not for locations in the South.

For same cool season grasses June is the time to put down insect control.
Jun 17, 2025
4 Posts
Joined Sep 2014
Jun 17, 2025
ujvarij1
Jun 17, 2025
4 Posts
If you have a Lesco or SiteOne near you, their fertilizer, pre-emergent and post-emergent spray products are much cheaper than Scotts sale prices.
Jun 17, 2025
1,313 Posts
Joined Oct 2012
Jun 17, 2025
P4RT1CLEM4N
Jun 17, 2025
1,313 Posts
Does crab grass die in the winter?
Jun 17, 2025
668 Posts
Joined Jun 2013
Jun 17, 2025
SweetT23
Jun 17, 2025
668 Posts
Crab grass dies in the winter, here in the south in NC this product needs to go down around mid February usually, when there is forsythia blooming as mentioned. This acts as a blanket so to speak and it prevents the crabgrass seeds from germinating. Before you put it down you can get down close and look at your lawn and you'll see tiny little green sprigs everywhere if it has already sprouted. If you see it at all then you are too late and this product is useless.

If you already have it then what you want is Quinclorac. It expensive but it works. You don't need name brand, any Quinclorac powder will do. I mix 1 TBSP per gallon and it kills the crabgrass dead. You'll see it all turn yellow and die within two weeks. I have bermudagrass it doesn't harm it. If you're putting that down, add in some 2-4D at 1oz/gallon. That kills every broadleaf weed. That's much cheaper than Quinclorac, which usually costs about $65-$70 for a seasons worth. 2-4D is about $20 for a gallon, which yields 16 gallons. One more thing I put in mine is MSM powder which kills ryegrass. I mix all 3 together and spray it about once every 4-6 weeks because my neighbors have a yard of weeds that blow over and it kills every single weed, ryegrass, and crabgrass. I used to work for Scott's back in the day.

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Jun 17, 2025
30 Posts
Joined Aug 2022
Jun 17, 2025
BretStep
Jun 17, 2025
30 Posts
Quote from DL_ :
if my lawn is already growing a bunch of crabgrass will this kill/control it? or is this more pre-emergent

It's more pre emigrant. Crabgrass is something you really need to pretreatment for with a specific chemical before the soil reaches a certain temperature in the spring. Once is germinated and takes root, it's hard to get rid of.

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