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Active Lawn Liquid Lawn Fertilizer (42.3 fl oz)

42.3 fl. oz. covers up to 5,000 sq. ft.

LAWN PLAN EXCLUSIVE

Active Lawn

High nitrogen for high-traffic lawns.

28-0-3 liquid lawn fertilizer with nitrogen and potassium for growth and deep green color. Built for actively used lawns that need strong, steady feeding.

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LAWN PLAN EXCLUSIVE

Active Lawn

Nutrients for actively used lawns

Active Lawn delivers 28-0-3 for lawns that get used hard. High nitrogen fuels dense growth to recover from wear. Potassium strengthens roots so grass bounces back. The 5.6% slow-release keeps feeding steadily instead of surging and crashing.

Not for new lawns or stressed grass. This is fuel for lawns already running.

The good stuff inside

  • High nitrogen 28-0-3 NPK Fuels dense growth on high-traffic lawns
  • 5.6% slow-release nitrogen Keeps feeding for weeks, not days
  • Potassium Strengthens roots so grass bounces back
  • Zero pesticide fertilizer—everything you need, nothing you don't
  • Universally loved by climates and grasses

How to use

Apply spring or summer 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.

What does Active Lawn do?

Active Lawn delivers high nitrogen (28-0-3) for dense growth and deep green color. The 5.6% slow-release nitrogen keeps feeding steadily instead of a one-week surge that fades. Potassium strengthens roots for stress resilience. It's built for lawns that get heavy use and need to recover from wear.

How long after Active Lawn can I apply my next fertilizer?

Wait 4-6 weeks between liquid fertilizer applications. Applying sooner risks burning your lawn with excess nitrogen. If you're using granular fertilizer, your wait time in between applications can be found on the product label (each one is slightly different). Mark your calendar so you don't stack applications.

Can I use Active Lawn right after aeration?

Yes. Aeration opens channels for nutrients to reach roots. Apply Active Lawn within a few days of aerating for best results. The nitrogen will move into the soil through the aeration holes. Water lightly after application.

How long after applying Active Lawn should I wait to mow?

Wait until the lawn is completely dry, usually 24 hours. Mowing wet grass after fertilizing can spread the product unevenly and stress the lawn. If you need to mow sooner, at least wait until the fertilizer has dried on the blades.

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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.

Read article

Customer reviews

Based on 10594 reviews!
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Isabel
Verified Reviewer
LocationMaple Grove, MN
Love my yard

With Sunday's help and products, the grass in my yard and along the driveway is thriving this year. It has never been so nice, green and healthy!

Published date
10/03/25
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Ray
Verified Reviewer
LocationWinter Garden Florida 34787
St augustine sod

Put lime down as suggested waiting to see redults

Published date
10/03/25
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Dr R.
Verified Reviewer
LocationGeorgetown, Texas
Great products matched by great

Great products matched by great customer service including responses to e-mail questions. Lawn is still greening up despite local excessive temperatures and dry conditions.

Published date
10/02/25
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Carrie
Verified Reviewer
LocationFort Collins Colorado
Our yard now looks amazing!

Our yard now looks amazing! The reminders of when to apply the products are so helpful. We plan to use this every year going forward. . application is so easy!

Published date
10/02/25
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Kathleen
Verified Reviewer
LocationFlorida
Not perfect but better than what I had

I was paying a lot of money for professional fertilization services that nearly killed my lawn. I’m trying to do it in my own and while it’s not the best on the block, it’s way better than it was.

Published date
10/02/25
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Rhonda
Verified Reviewer
LocationWyoming
Very Happy!

First summer using this program and I am so happy with the results! My yard is lush and very green! We are coming to the beginning of winter and I truly feel my yard is in great shape for the long cold winter! I am already looking forward to spring!

Published date
10/02/25
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Thierry
Verified Reviewer
LocationArlington, VA
Makes things easy!

I have been following Sunday’s approach, they make it very easy to care for your lawn without having to do all the research. It’s now looking much better. I would definitely recommend them.

Published date
10/01/25
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Shel
Verified Reviewer
LocationPlymouth Meeting Pa
It's green

Started this season and my lawn looks lush and green

Comments by Store Owner on Review by Sunday on Wed Oct 01 2025
Sunday
Hi Shel! We're so glad to hear that your lawn looks lush and green this season. We can't wait to see how it continues to thrive in the future. Thank you for choosing us!
Published date
09/30/25
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Shane
Verified Reviewer
LocationIndianapolis, IN
So far so good

It's early in the process, but I do see that my lawn is much greener than the neighbors, and there are less weeds. The pet spot repair has been great!

Comments by Store Owner on Review by Sunday on Wed Oct 01 2025
Sunday
Hi Shane! We're delighted to hear that your lawn is looking greener and healthier already. We can't wait to see how it continues to improve with our pet spot repair product. Thank you for sharing your positive experience!
Published date
09/29/25
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1
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Daron
Verified Reviewer
LocationBend, OR
Great service

I have struggled with growing a lush green lawn for ever. I started the tailor made program with Sunday and it’s been amazing. I was sitting out in front of my house yesterday and a man walking his dog said you have the best lawn in the neighborhood. Highly recommended product.

Published date
09/29/25
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