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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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Melia
Verified Reviewer
LocationSandy, UT
Thank you!!

Thank you for a clean product that works!!! I feel so much better spraying this in our yard instead of spreading toxins. . . dogs, cats, birds and squirrels all say thank you too! Our grass looks great too - I asked my husband what he thought and he just replied, 'have you looked at the grass? - it ...

Published date
12/29/25
Was this review helpful?
3
1
Scott
Verified Reviewer
LocationHuntersville, NC
Amazing!

Sunday and all of the plans and services that are offered cannot be beat. You have a question, they have an answer. You’re not sure about something, just ask and Sunday is there. Thank you for having a wonderful yard to be so simple.

Published date
11/07/25
Was this review helpful?
6
1
Kevin
Verified Reviewer
LocationBrandon, MS
Wonderful Lawncare

I started using Sunday this year and I love it so far! Great products that aren't full of harmful chemicals and they work! My lawn loves the fertilizer and doesn't hate the weed killer or bug spray, both of which work really well. The soil analysis was cool to see, and so far the AI chat Sunny has...

Published date
10/22/25
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3
1
Bob
Verified Reviewer
LocationMedina, Ohio
Best Lawn In The Neighborhood

Was not sure about this system but by following the Sunday directions, other some pesky clover, I have the best looking lawn in our subdivision.

Published date
10/17/25
Was this review helpful?
4
1
David
Verified Reviewer
LocationOhio
Huge improvement!

It has taken a little while, but my yard is much better after Sunday treatments.

Published date
10/17/25
Was this review helpful?
5
2
Randall
Verified Reviewer
LocationRinggold GA
I’m very pleased so far

I started Sunday treatments in August of this year and am pleased with the results. I love the ease of transactions as Sunday sends my tools as they are needed and I have a schedule that tells me when to apply. No guess work. I also love the Sunny feature and have used it a few times. It is very hel...

Published date
10/16/25
Was this review helpful?
5
2
Therese
Verified Reviewer
LocationSouthwest Ohio
Working on it

I started the Sunday program in August. My yard hadn’t been fertilized since last autumn and isn’t in the best shape. After 4 applications of fertilizer it looks better but it isn’t where we want it. I just can’t seem to get the weeds out. I like the reminders to fertilize the lawn. I’m going to giv...

Published date
10/15/25
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6
2
Michael
Verified Reviewer
LocationIdaho
Idaho comeback

My yard was in need of getting greener and weeds removal. Sunday excelled at the getting greener part! The weeding product really didn't work especially the one for "garden" which ended up burning and destroying several of my flowers in bed around garden (it was supposed to be safe for flowers and g...

Comments by Store Owner on Review by Sunday on Wed Oct 15 2025
Sunday
Hello Michael, we apologize for the inconvenience caused by the weeding product and our team would love to take a look at your Sunday account and help locate your soil test results. Please reach out to [email protected] or 415-903-6932 for further assistance.
Published date
10/14/25
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4
2
Erick
Verified Reviewer
LocationGreenville, SC
Beautiful Lawn!

Sunday profucts have made my lawn so full and green. Great products, easy to apply amd great results!

Published date
10/12/25
Was this review helpful?
2
1
Nanette
Verified Reviewer
LocationBlack Hills, SD
Beautiful backyard!

First year with Sunday Lawn. I started with them in August I believe? I am a widow who loves my backyard, 2 dogs and cat, and wanted a non- chemical lawn. This product really feeds and nourishes my lawn! I water on a schedule which is important too. I used to use Trugreen but decided to do it myself...

Published date
10/11/25
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2
1