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Weed & Green Pre-emergent and Post-Emergent Weed Killer

$25

(1) 32 oz. concentrate, covers up to 2,500 sq. ft.

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Stop weeds before they start. Handle the ones that already showed up.

Tackles dandelions, clover, and broadleaf weeds already in your lawn, suppresses crabgrass, and greens up your grass. No synthetic herbicides.

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$25

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Weed control that kills weeds, not your grass

Picture your lawn two weeks from now. Greener. No dandelions poking through. No crabgrass creeping in from the edges. That's what Weed & Green is built to do.

One iron-based formula handles five jobs at once: knocking out broadleaf weeds already growing, suppressing crabgrass and weed germination before they start, clearing moss and algae, helping keep lawn disease in check, and boosting grass color in the process.

Targets what shouldn't be there. Leaves your grass greener.

Now available in custom lawn plans. Not a subscriber yet? Build your plan.

What's doing the work

  • Broadleaf weed killer Tackles dandelions, clover, chickweed, and more on contact
  • Crabgrass preventer Suppresses crabgrass and annual weeds before they sprout
  • Moss, algae, and lichen control Clears what creeps in where grass struggles
  • Lawn disease suppression Helps keep common fungal issues out
  • Fast green-up Iron boosts grass color while it works on weeds
  • Hose-end ready Sprayer included, no mixing needed
  • Safe for all turfgrasses For cool and warm season grasses

Backed by our satisfaction guarantee

How to use

  1. Attach the sprayer to your hose.
  2. Apply evenly to a dry lawn, temperatures between 50 and 85°F.
  3. Reapply in 3 to 6 weeks if hardy weeds persist.

Seeding after Weed & Green: Wait 1 day before seeding. Heads up: Iron can stain hardscapes. Rinse any pavement immediately if you get drift. Not sure what you're dealing with? Use our weed ID guide.

What weeds does Weed & Green kill or control?

Broadleaf weeds including dandelions, clover, chickweed, spurge, and oxalis. It also suppresses germination of crabgrass and other annual grassy weeds, and clears moss, algae, and lichen. For a full weed list, check the product label in documents.

Can I put down pre-emergent and fertilizer at the same time?

You can on the same day, not the same time. Apply fertilizer first, let it dry fully, then apply Weed & Green. And yes, Weed & Green can be used as a pre-emergent and post-emergent weed control in the same season, just follow the timing on the label.

How often do I need to apply Weed & Green?

Apply once thoroughly to the lawn, and then reapply 3 to 6 weeks later in the growing season. We recommend only applying up to two times as a preemergent or post-emergent in your lawn.

When do I apply Weed & Green?

Early spring is your best window for crabgrass prevention, typically when soil temps are approaching 55°F. For existing broadleaf weeds, apply any time during the growing season when weeds are actively growing and temperatures are between 50 and 85°F.

Can I put grass seed down after Weed & Green?

Yes. Wait 1 day after applying, then seed as normal.

How long after applying is it safe for kids and pets?

Once fully dry, it's safe for kids, pets, and bare feet. On a warm sunny day that's usually 1 to 2 hours. Give it a bit longer if it's cool or humid.

How soon will I see results?

Most broadleaf weeds show visible wilting within 24 to 72 hours. Full results within 1 to 2 weeks depending on weed size and conditions. The green-up from iron is often visible within a few days.

How much lawn does the Weed & Green cover?

Each bottle covers up to 2,500 sq. ft. per post-emergent application, and up to 1250 sq. ft. for a pre-emergent application.

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Customer reviews

Based on 250 reviews!
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Rachel
Verified Reviewer
LocationIN
COME BACK

I love this! We moved in to an abandoned untamed yard for 2 years. It's work getting the yard right but this helped SOOO much. I need it back! I recommend it but they can't buy it right now😬

Published date
10/07/25
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0
0
George B.
LocationVirginia
Not what I expected

If this priduct is sold out stop advertising or say when it will be available.

Comments by Store Owner on Review by Sunday on Wed Sep 17 2025
Sunday
Hi George, we are excited to offer Weed & Green again in the future! We'll be sure to share as soon as it's available for pre-order.
Published date
09/17/25
Was this review helpful?
0
1
Danielle
Verified Reviewer
LocationSevern, MD
Awesome

I'm finally seeing real grass! The weeds are dying out! I can't wait to see what my lawn looks like next year after all the treatments and care! Your products and instructions makes this newbie feel confident about her green thumb.

Published date
08/29/25
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0
0
Ricardo S.
Verified Reviewer
LocationKaty, TX
Not confident on this product

This is my second year using the Sunday plan. I bought this product to use on my entire yard. This product killed about half my lawn, and my dark green lawn is now grey, brown, and light green. What happens with this product?

Comments by Store Owner on Review by Sunday on Sat Aug 02 2025
Sunday
Hi Ricardo, thanks for sharing these photos with us! Have you had the chance to connect with our expert Yard Advisor team? They can take a look and help diagnose what's going on. You can reach them at [email protected] or by calling 415-903-6932.
Published date
08/02/25
Was this review helpful?
1
0
Catherine A.
LocationFL
Weed care

The weed and grass killer REALLY does what it says, great. Looking for "Weed pre-emergent and post-emergent spray but it has been out of stock for at least two months -- don't know when it will be in supply. Would like to get on some kind of waiting list.

Published date
08/02/25
Was this review helpful?
3
0
Chadillac
Verified Reviewer
LocationNew Jersey
Best weed killer for the lawn

I have begun using organic products expecting them to work but be less effective than chemicals. This was not the case. I was incredibly impressed by the results. Within 24hrs the weeds were gone with one application and no burns to the grass. My only disappointment was that it was sold out on the w...

Published date
07/20/25
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0
0
Sunday F.
Verified Reviewer
LocationCentral Texas
Great Product

Killed the weeds in just 24 hours

Published date
07/18/25
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0
0
Ashley
Verified Reviewer
LocationAppleton, WI
A product I will be using again

I’ve been pleasantly surprised by Sunday’s weed & green. The application proved to be a little tricky, only because I couldn’t get the sprayer to work. I think the issue was how the straw was sitting in the bottle, I think it’s too long??? The treatment itself started to work within 24 hours, weeds ...

Published date
07/01/25
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0
0
Tom
LocationBoston, MA
Killed Lawm

I’ve been a loyal Sunday customer for years and the products have never failed me… until now. This product killed about half my lawn, and my dark green lawn is now grey and brown.

Comments by Store Owner on Review by Sunday on Thu Jun 26 2025
Sunday
Hi Tom, we're sorry to hear that this was your experience with Weed & Green! This shouldn't be the case with your results, and we're going to have one of our Yard Advisors reach out to you via email to get some more information and help with your lawn!
Published date
06/26/25
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1
0
Georgina
Verified Reviewer
LocationIndiana
Emergent weed killer

It did not kill alot of weeds.

Published date
06/23/25
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0
0

$25