Mighty Green Liquid Lawn Fertilizer (42.3 fl oz)

Name: Mighty Green Liquid Lawn Fertilizer (42.3 fl oz)
Brand: Sunday
SKU: SBA3078
Price: 25.00 USD
Availability: InStock
Rating: 4.3 (10593 reviews)

One pouch covers up to 5,000 sq ft

10593 reviews

LAWN PLAN EXCLUSIVE

Nutrients for a thick, green lawn.

26-0-2 liquid fertilizer with 10% slow-release nitrogen for steady growth and rich, lasting color. Feeds now and keeps feeding.

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Slow-release nitrogen for color that lasts

Mighty Green delivers 26-0-2 with high nitrogen for dense growth and potassium for resilience. The difference is the 10% slow-release nitrogen. Instead of a quick surge that fades in two weeks, it keeps feeding so color holds longer between applications.

Deep rooting. Deep greening. And it sticks around.

The good stuff inside

High nitrogen 26-0-2 NPK Dense growth and deep greening
10% slow-release nitrogen Color that lasts between applications
Potassium Deep rooting and heat tolerance
Zero pesticide fertilizer—everything you need, nothing you don't
Universally loved by climates and grasses

How to use

Apply spring through fall when grass is actively growing. Temps 50-85°F.

1. Apply early morning or evening to a well-hydrated lawn.

2. Connect sprayer to hose and pouch.

3. Spray evenly until pouch is empty (about 10-15 minutes).

4. Let dry completely before walking on lawn.

5. Reapply every 4-6 weeks during active growth.

FAQ

How long after applying Mighty Green should I see a difference?

Most lawns show visible greening within 5-7 days. The quick-release nitrogen works fast. The 10% slow-release continues feeding for weeks, so color should hold longer than fertilizers without slow-release. Full results depend on watering and weather.

Should I water my lawn after applying Mighty Green?

Wait 24 hours before watering or running sprinklers. The fertilizer needs time to dry and absorb. If rain is expected within 3 hours, wait for a drier day. Light rain after 24 hours is fine and helps move nutrients into soil.

How long do I wait to apply Mighty Green after seeding?

Wait until new grass has been mowed 2-3 times, usually 4-6 weeks after germination. Applying Mighty Green too early can burn tender seedlings.

Can I apply Mighty Green before or after aerating?

Either works. Applying after aeration lets nutrients reach roots through the holes. Applying before is fine too. Just don't aerate immediately after applying or you'll disrupt the fertilizer before it absorbs. Wait 2-3 days between application and aeration.

Documents

Mighty Green SDS

Mighty Green Label

Sunday liquid lawn fertilizer pouches side by side on a lawn

Liquid Lawn Fertilizer Instructions

Healthy soil grows healthy grass. Sunday's liquid fertilizers deliver nutrients fast, right when your lawn needs it. Here's how to put them to work.

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Customer reviews

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Michael S.

Verified Reviewer

LocationPA

Great. Magnificent

I was very skeptical of using this product. I am shocked and surprised how well Sunday did for my lawn. After many times of making my lawn look good. There are no words to express how well my lawn looks. This year

Published date

04/23/26

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Fredy

Verified Reviewer

LocationIndiana

Not happy with results.

Not happy with the results with the Weed & Green pre-emergent. New Weeds all over my lawn. Would not purchase again.

Published date

04/11/26

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Ryan

Verified Reviewer

LocationColorado

Full solution lawn care

I have been a Sunday user for a number of years and am thrilled at the transformation my lawn has made (before and after photos about a year into my Sunday subscription attached). The products ship straight to my door and the instructions and application dates are clear. Customer service and their v...

Sunday

Hello Ryan! We are delighted to hear about the amazing results you have achieved with Sunday products. We look forward to being your partner on this lawn care journey for many more years to come!

Published date

04/09/26

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Nicole

Verified Reviewer

LocationCO

We grew back grass in time for our wedding

We planned a post-wedding party for our backyard last year. Couldn't imagine we'd be able to grow grass in time. Sunday not only helped us grow back our lawn but our dog was sooo happy too. Cannot recommend the custom plan plus dog lawn grass seed and lawn aid enough.

Sunday

Hi Nicole! We are thrilled to hear that our custom plan and dog lawn grass seed worked wonders for your backyard party. We look forward to helping you with all your lawn needs in the future!

Published date

04/09/26

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Mike S.

Verified Reviewer

LocationCO

Impressive.

Very impressed so far! I used the weed and green pre emergent (***www.getsunday.***/shop/lawn-care/weed-green-pre-emergent-and-post-emergent-weed-killer-2-pack) was shocked to see how quickly it started working without all the harsh chemicals! My dog was back on the lawn within 24 hours. So far so g...

Published date

04/06/26

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John

Verified Reviewer

LocationColorado

Green grass without a lame new hobby

Came across Sunday on advice from a friend. I'd always wanted to be one of those people with lush green grass but wasn't looking for another hobby to take my time and money. Sunday fits the bill: just tell me what to do and when to do it. My lawn is now up there with the best on the street and I get...

Published date

03/25/26

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David L.

Verified Reviewer

LocationCO

Love how easy Sunday is

Wow—Sunday really made my lawn look so much better. Lawn is thick and very green. It’s super easy to use, and I’ve been really happy with the subscription.

Published date

03/25/26

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Larry

Verified Reviewer

LocationColorado

Three years in

Three years in and our lawn is beautiful. So much easier than everything I tired before. The tree fertilizer also did wonders for my cherry tree.

Published date

03/25/26

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Mike P.

Verified Reviewer

Thick Lawn grown in 85 % Sand !

We never could get grass to grow on our southwest front hill and our grass up front was always thin ! The back yard was always patchy and grass would never grow behind our pool ! We started using Sunday roughly 4 years ago and Wow ! nice thick lawn up front and a full lawn out back and in 85% sand t...

Published date

01/25/26

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Chris

Verified Reviewer

LocationVan Nuys, CA.

Great Results

I followed the recommended steps. After the first seeding, the ground was unreceptive so I added some topper cover/fertilizer. Aside from that, all the recommended steps have led to a beautiful lawn.

Published date

01/11/26

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Mighty Green Liquid Lawn Fertilizer (42.3 fl oz)

Slow-release nitrogen for color that lasts

The good stuff inside

How to use

How long after applying Mighty Green should I see a difference?

Should I water my lawn after applying Mighty Green?

How long do I wait to apply Mighty Green after seeding?

Can I apply Mighty Green before or after aerating?

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Liquid Lawn Fertilizer Instructions

Customer reviews

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