Almighty 20-0-10 Lawn Fertilizer features

Almighty 20-0-10 Lawn Fertilizer when to apply

Bag coverage guide for different bag weights with corresponding square footage coverage and application rate.

Almighty 20-0-10 Lawn Fertilizer

Almighty 20-0-10 Lawn Fertilizer is a premium nitrogen and potassium fertilizer designed to deliver deep green color, strong growth, and improved turf density. It’s ideal for established lawns that need professional-grade feeding without added phosphorus.

Fast dark green-up in 7-14 days
Long-Lasting 6–8 Week Feeding
Builds thicker, denser turf

Select Size:

Not Sure?

+ $34.99

Quantity:

Fast Shipping99% of orders ship same day

Proven ResultsProfessional-grade products

Made in the USAQuality ingredients

Expert SupportReal lawn experts to help

Get a Greener, Thicker Lawn with Almighty 20-0-10

Professional-Grade Results20-0-10 + Micronutrients

Fast Green-Up

See a quicker response and richer green color.

Feeds Up to 6–8 Weeks

Controlled-release nitrogen keeps working after the initial green-up.

Deeper Green Color

Iron and micronutrients help improve overall turf color.

Cool + Warm Season Lawns

Formulated for established cool-season and warm-season grasses throughout the growing season.

Fast Green-Up with Long-Lasting Feeding

If your lawn looks pale, thin, or lacks the deep green color you want, Lawn Synergy Almighty 20-0-10 Lawn Fertilizer delivers the nitrogen established turf needs for stronger growth, improved density, and rich green color.

Almighty combines quick-response nitrogen with 45% controlled-release nitrogen (XCU) to provide an initial green-up followed by steady feeding for up to 6–8 weeks. Added iron and micronutrients help enhance color and support overall turf health.

It’s a strong choice for established cool-season and warm-season lawns during active growth, especially when your goal is faster green-up and stronger top growth.

Almighty or Emerald?

Choose Almighty 20-0-10 when your lawn needs more nitrogen for faster green-up and growth. If your priority is additional potassium to support heat, drought, and overall stress tolerance, consider Emerald 10-0-20 Lawn Fertilizer →

Select Your Grass Type.

20% Nitrogen

High-nitrogen formula for active turf growth.

45% Controlled Release

Provides steady feeding instead of one quick flush.

Ammonium Sulfate

Fast-acting nitrogen for quicker initial response.

Iron + Micronutrients

Supports darker color and balanced nutrition.

Application Rate

4–5 lb per 1,000 sq ft

Equipment

Broadcast spreader

When to Apply

During active growth

After Application

Water in

Guaranteed Analysis

⌄

Total Nitrogen (N)20.0%

17.0% Urea Nitrogen*

4.0% Ammoniacal Nitrogen

Soluble Potash (K₂O)10.0%

Sulfur (S)4.6%

Iron (Fe)2.00%

Manganese (Mn)0.18%

Zinc (Zn)0.17%

Boron (B)0.07%

Derived From:

Polymer-coated sulfur-coated urea, Urea, Muriate of potash, Ammonium sulfate, Ferrous sulfate, Ferrous oxide, Ferrous sulfate, Iron oxide, Ulexite, Manganese sulfate, Manganese oxide, Zinc sulfate, Zinc oxide

*9.0% Slowly Available Nitrogen from polymer-coated Sulfur-coated urea.

Spreader Settings

⌄

Find the right starting setting for your spreader.

Spreader Manufacturer Spreader Model

Select your spreader to see the setting.

Use the recommended spreader range as a starting point. Calibrate to your walking speed, pass width, spreader condition, and measured lawn area.

Spreader settings & calibration guide →

Documents & Labels

⌄

Product Label Product Brochure

What type of grass is Almighty 20-0-10 safe for?

It is formulated for both cool-season grasses (tall fescue, bluegrass, rye) and warm-season grasses (bermuda, zoysia, St. Augustine).

When should I apply Almighty fertilizer?

For warm-season lawns: May–August for Bermuda and Zoysia, and St Augustine.

For cool-season lawns: October-December

How much should I apply?

Apply 4-5 lbs per 1,000 sq ft using a broadcast spreader. Water in after application. This will apply .8-1lb. of nitrogen per application

Will it burn my lawn?

No. The product contains slow-release nitrogen and iron that won’t burn your lawn when applied as directed and watered in properly.

Customer Reviews

Overall rating: 4.7512197 / 5 from 205 reviews.

AI Generated Review Summary

The Almighty 20-0-10 Lawn Fertilizer offers fast green-up and long-lasting feeding for established lawns. It provides strong growth, improved density, and rich green color. The product is praised for its ability to enhance lawn appearance and overall turf health.

Summary topics

Product Quality (4%): Customers appreciated the high quality of the products, which were mentioned multiple times in the reviews.
Delivery Speed (8%): Customers loved the fast delivery of the lawn fertilizer, with multiple reviews praising the quick shipping.
Lawn Results (14%): Customers raved about the amazing and top-notch results they achieved with the product.

Review topics: [].

Review highlights

"My lawn looks great compared to what it used to look like and I actually enjoy fertilizing and related Lawn Care steps." — Charles K.
"My zoysia lawn is looking great." — Juan
"My lawn looks very healthy and alive given this time of the year!" — Nicole P.

Reviews

I just applied it about

"I just applied it about a week ago right before the rain started. I applied the starter fertile prior to that to help give the new seed a start. That worked amazing for new seed and I have high hopes that my lawn will benefit from this product as well. I have bought several lawn products over the past couple of years and the results have been amazing. Will not use anything else. My only suggestion is do a soil test first so you have a starting point on which products to buy to best help out your lawn"

— Scott J. (5/5)

I literally have neighbors stop

"I literally have neighbors stop and remark how beautiful my lawn is. What is remarkable is my son has his lawn professionally sprayed for weeds and also fertilized, and the results are poor. I need suggestions from you to start worrying on my back yard that has wild violets, clover and needs thickening due to some shade. Thank you for your help. My friend Debby also ordered from you."

— EVA K. (5/5)

"Takes the guess work out. Grass looks great."

— Matthew (5/5)

Love the products, my lawn

"Love the products, my lawn is thriving and stands out. I'm always told it looks like it's done professionally."

— Dana M. (5/5)

My lawn looks fantastic since

"My lawn looks fantastic since starting this program. This is so much better than having the typical spray company treat the yard. I have used all of these "spray" companies local here and the result was always the same with the same results. I now have have bright green almost blue grass(St Augustine ProVista) thanks to your program of DYI."

— Edward C. (5/5)

Excellent Help

"I found Lawn Synergy about 1. 5 -2 yrs ago for my new Bermuda lawn. Yes, their products are awesome ( I use fertilizer (Almighty ) , sledgehammer and Celsius ). All are great, BUT the best part is their help. I email questions and pictures all the time. Very quick to reply and spit on help! Love them and will us them as long as I have this house. Btw, my yard looks kick ass! Steve"

— Steve S. (5/5)

Excellent products

"We bought our house in Fall of 2025 and the lawn was ok but had a fair amount of weeds and bare patches. Since starting the program there has been a significant improvement in how the lawn looks. The lawn is now green and lush noticeably greener than all of our neighbors who use the major treatment companies. I've used other brands seasonal subscriptions but they definitely did not work as well as this does."

— Brendan M. (5/5)

It helped, maybe I was

"It helped, maybe I was expecting too much."

— Dan M. (3/5)

So far been excellent Become

"So far been excellent Become lush and deep green after struggles last year and questionable pest control Thankful to have found this service from you guys Very happy so far and looking forward to seeing what Emerald brings in July"

— Bjorgvin A. (5/5)

Lawn is looking great

"Lawn is looking great"

— Chris P. (5/5)

Q&A

Is this the correct fertilizer to use after the starter fertilizer? It would be used on new lawns with a mixture of Envy, Shade Pro, and Velocity. Also, consider it is October 7th in Hampton, Va 23661 2 blocks from Hampton Roads Harbor/Chesapeake Bay. Thank You: For a cool season lawn in the fall after aeration and seeding, I would recommend using 20-0-10 Almighty 4-5 weeks after applying starter fertilizer.
How soon after laying bermuda sod should i fertilize with 20-0-10?: You should wait at least 6 weeks to apply if you have already applied starter fertilizer when the sod was installed. If starter has not been applied yet, suggest applying starter and then 6 weeks after, apply the next fertilizer application.
This is what you recommend for fall ? Is this like a Winterguard ? I have Kentucky blue grass. What is recommended for bindweed . It’s a vine weed. Why is yours better than others ? I’m trying to make my grass thicker and greener. I just had aeration done .. Put cheaper stuff on the back. Until my neighbor over-seeded his with nitrogen ! Trying to beat out a landscaper ! Help! 😂 Thank you: Good Morning! Please reach out to us directly at support@lawnsynergy.com. We would love to know more information about your property so that we can make recommendations for you.
what do you recomend for the fall application of pre emergent and fertilize for st augustine grass in zone 9?: I would recommend 13-0-10 Guardian as a fertilizer and pre-emergent for St Augustine Turf in the fall.
Can I put this fertilizer down in this hot heat in st. Louis?: I live in Florida and it’s working wonderfully on my centipede grass.

Three bags of lawn care products from Lawn Envy, including North Star 20-0-10 fertilizer, displayed on a green grass surface against a dark green background.

Your Lawn Care Plan, Delivered Automatically

We take the guesswork out of lawn care. Get the right products shipped to your door at the right time.

Learn More