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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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David
Verified Reviewer
LocationSparks, Nevada
I was skeptical, however seems

I was skeptical, however seems to be working. See before and after below.

Published date
10/10/25
Was this review helpful?
3
1
Becky
Verified Reviewer
LocationSpokane, WA
Finally!!!

It is an immense relief to find a yard care option that works with nature not against it. No more green short term facade, with poisoning long term destruction. And it's actually fairly affordable?!?!?! Wow. Mindblown. Thank you very much.

Published date
10/09/25
Was this review helpful?
1
0
Greg
Verified Reviewer
So far so good can’t

So far so good can’t wait for next season to see how everything is holding up? Time will tell.

Published date
10/09/25
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1
0
Matt
Verified Reviewer
LocationBlauvelt, New York
Plan is great. Customer support us even better

I started with a weed infested lawn. I had tons of questions and the guys were more than helpful with their responses. Will even went as far as making video responses to a video I sent showing my lawn's status. Super happy with the service.

Published date
10/09/25
Was this review helpful?
3
1
Ronald
Verified Reviewer
LocationMartinsville Indiana
Finally Making Some Progress with my Yard!!

This is my first year using the Sunday System. I have unsuccessfully tried the DIY yard treatment granules from the big box stores and tried hiring a truly green service to apply for me, but no success with either. From the pictures, you can see that for the first time in ten years, I am finally mak...

Published date
10/08/25
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0
0
Jeff
Verified Reviewer
LocationFallon, Nevada
Sunday is dialed in to your needs 100%

My lawn was close to impossible to improve, let alone maintain. Huge patchy areas, tons of weeds, always dry looking despite the constant watering; nothing was helpful from the store bought products. I decided to try Sunday, in June. Sent my soil sample in started using the plan sent fertilizers im...

Published date
10/08/25
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0
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Melissa
Verified Reviewer
LocationSpokane, WA
Sunday lawn service is great !!

I started using Sunday at the beginning of the summer and my yard is a lawn now. It's beautiful. And very very thick!!

Published date
10/08/25
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0
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Erin
Verified Reviewer
LocationMonroe, WA
Such an easy to follow system!

I love that the products just show up, I don't have to mark dates on my calendar or research what I'm supposed to be doing now. Getting the emails telling me which product to use now; and having Sunny to ask questions has been a game changer. I have been following the plan for about 6 months now and...

Published date
10/08/25
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Sean
Verified Reviewer
LocationPittston, PA
First Season

We live in a wooded area where I am always fighting to get the grass to grow between the board of the yard and the forest. The fertilizer I received in my first box I feel made a difference with the existing grass we already had. With our new puppy I did utilize the urine resistance seed to get the ...

Published date
10/08/25
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1
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Donna
Verified Reviewer
LocationGrayson county Texas
Healthiest on the Block

I do love using Sunday products on my too large lawn! I found them to be economical too compared to the dry fertilizers that never spread as far as they promise

Published date
10/08/25
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