20% off lawn plans

Code: STARTNOW

Sunbelt Nutrients Liquid Lawn Fertilizer (42.3 fl oz)

One pouch covers up to 5,000 sq ft

LAWN PLAN EXCLUSIVE

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.

sunday-guarantee-badge

We're committed to making sure Sunday works for you and your home. Need a replacement? Or help troubleshooting an issue? Our experts are here for you. Learn more

Related products

LAWN PLAN EXCLUSIVE

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.

Trending items

Green Lawn Fertilizer Hose SprayerGreen Lawn Fertilizer Hose Sprayer

Replacement Lawn Sprayers (2-Pack)

$5

Shipping box

Free Shipping!

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 10595 reviews!
Popular topics
Show more
Michael S.
Verified Reviewer
LocationPA
Great. Magnificent

I was very skeptical of using this product. I am shocked and surprised how well Sunday did for my lawn. After many times of making my lawn look good. There are no words to express how well my lawn looks. This year

Published date
04/23/26
Was this review helpful?
0
0
Fredy
Verified Reviewer
LocationIndiana
Not happy with results.

Not happy with the results with the Weed & Green pre-emergent. New Weeds all over my lawn. Would not purchase again.

Published date
04/11/26
Was this review helpful?
11
1
Ryan
Verified Reviewer
LocationColorado
Full solution lawn care

I have been a Sunday user for a number of years and am thrilled at the transformation my lawn has made (before and after photos about a year into my Sunday subscription attached). The products ship straight to my door and the instructions and application dates are clear. Customer service and their v...

Comments by Store Owner on Review by Sunday on Sat Apr 11 2026
Sunday
Hello Ryan! We are delighted to hear about the amazing results you have achieved with Sunday products. We look forward to being your partner on this lawn care journey for many more years to come!
Published date
04/09/26
Was this review helpful?
0
0
Nicole
Verified Reviewer
LocationCO
We grew back grass in time for our wedding

We planned a post-wedding party for our backyard last year. Couldn't imagine we'd be able to grow grass in time. Sunday not only helped us grow back our lawn but our dog was sooo happy too. Cannot recommend the custom plan plus dog lawn grass seed and lawn aid enough.

Comments by Store Owner on Review by Sunday on Sat Apr 11 2026
Sunday
Hi Nicole! We are thrilled to hear that our custom plan and dog lawn grass seed worked wonders for your backyard party. We look forward to helping you with all your lawn needs in the future!
Published date
04/09/26
Was this review helpful?
0
0
Mike S.
Verified Reviewer
LocationCO
Impressive.

Very impressed so far! I used the weed and green pre emergent (***www.getsunday.***/shop/lawn-care/weed-green-pre-emergent-and-post-emergent-weed-killer-2-pack) was shocked to see how quickly it started working without all the harsh chemicals! My dog was back on the lawn within 24 hours. So far so g...

Published date
04/06/26
Was this review helpful?
1
0
John
Verified Reviewer
LocationColorado
Green grass without a lame new hobby

Came across Sunday on advice from a friend. I'd always wanted to be one of those people with lush green grass but wasn't looking for another hobby to take my time and money. Sunday fits the bill: just tell me what to do and when to do it. My lawn is now up there with the best on the street and I get...

Published date
03/25/26
Was this review helpful?
4
1
David L.
Verified Reviewer
LocationCO
Love how easy Sunday is

Wow—Sunday really made my lawn look so much better. Lawn is thick and very green. It’s super easy to use, and I’ve been really happy with the subscription.

Published date
03/25/26
Was this review helpful?
0
0
Larry
Verified Reviewer
LocationColorado
Three years in

Three years in and our lawn is beautiful. So much easier than everything I tired before. The tree fertilizer also did wonders for my cherry tree.

Published date
03/25/26
Was this review helpful?
0
0
Mike P.
Verified Reviewer
Thick Lawn grown in 85 % Sand !

We never could get grass to grow on our southwest front hill and our grass up front was always thin ! The back yard was always patchy and grass would never grow behind our pool ! We started using Sunday roughly 4 years ago and Wow ! nice thick lawn up front and a full lawn out back and in 85% sand t...

Published date
01/25/26
Was this review helpful?
8
1
Chris
Verified Reviewer
LocationVan Nuys, CA.
Great Results

I followed the recommended steps. After the first seeding, the ground was unreceptive so I added some topper cover/fertilizer. Aside from that, all the recommended steps have led to a beautiful lawn.

Published date
01/11/26
Was this review helpful?
1
2

Related Products