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Soil Helper Liquid Lawn Fertilizer (42.3 fl oz)

One pouch covers up to 5,000 sq ft

LAWN PLAN EXCLUSIVE

Soil Helper pouch

Fertilizer that fixes tough soils.

22-0-3 liquid fertilizer with surfactant to improve water flow and nutrient uptake. For drought-prone regions and lawns with compacted or water-resistant soil.

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Soil Helper pouch

When water won't soak in, nutrients can't either

If your lawn has compacted soil, water-resistant patches, or just doesn't respond well to fertilizer, the soil might be the problem. Soil Helper combines 22-0-3 fertilizer with surfactant technology. The surfactant helps water spread and penetrate instead of running off or pooling. Nitrogen feeds growth. Seaweed supports root strength. Potassium improves stress resilience.

The good stuff inside

  • Surfactant technology Helps water penetrate compacted soil
  • Nitrogen 22-0-3 NPK Growth and greening once water reaches roots
  • Seaweed extract Root strength and heat tolerance
  • Potassium Stress resilience and water management
  • Zero pesticide fertilizer—everything you need, nothing you don't
  • Universally loved by climates and grasses

How to use

Apply in late spring or early summer before drought conditions.

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. Water thoroughly after application.

5. Reapply every 4-6 weeks during growing season.

I see Soil Helper on my plan. What is that?

Soil Helper is a 22-0-3 fertilizer with surfactant technology to improve water flow in tough soils. The surfactant helps water spread and penetrate instead of running off or pooling. It's assigned to plans in drought-prone regions or for lawns with compacted, water-resistant soil. Think of it as fertilizer plus soil conditioning.

How do I know if my soil needs Soil Helper?

Water puddles or runs off instead of soaking in. Grass stays dry even after irrigation. You see dry patches next to wet spots. Push a screwdriver into the soil—if it's hard to penetrate, you have compaction. Soil Helper addresses these water penetration problems while feeding your lawn.

Should I aerate before or after applying Soil Helper?

Either works. Aerating before lets the surfactant penetrate through the holes. Aerating after is fine too. If you're doing both in the same week, apply Soil Helper first, wait 2-3 days, then aerate. The surfactant will help water move through the new aeration channels.

Can I apply Soil Helper if rain is expected?

Light rain 24+ hours after application is fine. Heavy rain within a few hours can wash the surfactant away before it works. Check the forecast and aim for a dry, clear day for application when possible. The surfactant needs time to break down the soil's water resistance.

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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 10593 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
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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