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Sunbelt Nutrients Liquid Lawn Fertilizer (42.3 fl oz)

One pouch covers up to 5,000 sq ft

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Sunbelt Nutrients Liquid Lawn Fertilizer

Targeted for warmer climates.

28-0-3 liquid fertilizer with nitrogen, potassium, and seaweed extract. High nitrogen for extended growing seasons, seaweed for heat stress tolerance.

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Sunbelt Nutrients Liquid Lawn Fertilizer

High nitrogen plus seaweed for hot climates

Sunbelt Nutrients delivers 28-0-3 for lawns with long growing seasons. High nitrogen keeps up with aggressive summer growth. Seaweed extract supports heat tolerance when temps spike. The 5.6% slow-release feeds steadily instead of burning out in summer heat.

Works on warm-season and cool-season grasses in hot, sunbelt states.

The good stuff inside

  • 28-0-3 NPK High nitrogen for long growing seasons
  • High nitrogen 28-0-3 NPK Keeps up with long southern growing seasons
  • 5.6% slow-release nitrogen Feeds steadily through summer heat
  • Seaweed extract Supports heat tolerance and stress recovery
  • Potassium Deep rooting and water management
  • Zero pesticide fertilizer—everything you need, nothing you don't
  • Universally loved by climates and grasses

How to use

Apply when grass is actively growing. Soil temps above 65°F for warm-season, 55°F for cool-season.

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 are the Sunbelt states in the United States?

The Sunbelt stretches across the southern tier of the country: Florida, Georgia, South Carolina, Alabama, Mississippi, Louisiana, Texas, New Mexico, Arizona, Nevada, and Southern California. These states share long growing seasons, intense summer heat, and warm-season grasses that stay active when northern lawns go dormant.

Why do Sunbelt lawns need special nutrients?

Longer growing seasons mean grass works overtime and burns through nutrients faster. Intense heat causes standard fertilizers to volatilize before grass absorbs them. Sunbelt Nutrients uses slow-release nitrogen that stays stable in high temps, plus seaweed for heat stress tolerance. Northern formulas spike and fade. This one keeps up.

Should I water my lawn after applying Sunbelt Nutrients?

Wait 24 hours before watering. The fertilizer needs time to dry and absorb into the grass blades. If your sprinklers run automatically, skip a cycle. Light watering after 24 hours helps move nutrients into the root zone.

What is the best time of day to apply Sunbelt Nutrients?

Early morning or evening when temps are below 85°F. Avoid midday heat. The fertilizer absorbs better when grass isn't stressed by sun, and you reduce evaporation. If you must apply during warm weather, water the lawn the day before.

How long after Sunbelt Nutrients can I apply my next fertilizer?

Wait 4-6 weeks between liquid applications. If you're switching to a different product like Active Lawn or Southeast Nutrients, the same timing applies. Stacking fertilizers too close together risks burning your lawn.

What will Sunbelt Nutrients do for my soil?

The seaweed extract supports root strength and heat tolerance, which helps grass pull nutrients more efficiently from soil. The potassium improves water management in the root zone. It's feeding the grass and supporting the soil biology that keeps roots healthy.

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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

Based on 10595 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
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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
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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
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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
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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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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...

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10/08/25
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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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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...

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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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