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Starter Fertilizer 15-20-10 +Iron
Starter Fertilizer 15-20-10 +Iron
Lawn Synergy
Starter Fertilizer 15-20-10 +Iron
Starter Fertilizer 15-20-10 +Iron
Better Seed Germination with Iron, Organics, AMP-XC.
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Regular price
$39.99
Regular price
$49.99
Sale price
$39.99
Unit price
per
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Lawn Synergy's Professional Starter Fertilizer 15-20-10 is a specialized fertilizer blend designed to support the healthy growth of new lawns, overseeded lawns, and sod. The fertilizer formula has a nutrient ratio of 15-20-10, which means it contains 15% nitrogen, 20% phosphorus, and 10% potassium.
The fertilizer also contains ALL-N Nitrogen inhibitor. It controls nitrogen loss so that you get more fertilizer in the soil to feed the lawn. This helps prevent rapid volatilization by 57% improving color and turf response.
In addition to the nutrients and stabilized nitrogen, the fertilizer also contains AMP-XC Technology, which is a fertilizer biocatalyst and microbial technology. AMP-XC will increase nutrient update by up to 30% resulting in healthier, and more resilient grass with deeper roots.
We also added 3.4% Iron and Ammonium Sulfate to really bring out that dark green color you are looking for. And if that wasn't enough, we also stuffed in organics to help feed those microbes in the soil.
Overall, Lawn Synergy's Professional Lawn Fertilizer Starter 15-20-10 is a very high-quality fertilizer that provides the essential nutrients and other beneficial ingredients needed to establish a healthy and vibrant lawn that is only available at Lawn Synergy.
Details
Details
| Key | Value |
|---|---|
| Active Ingredient | 15% Nitrogen - 20% Phosphorus - 10% Potassium |
| Lawn Types | Tall fescue, Bermuda, Zoysia, Kentucky bluegrass, St. augustine, Ryegrass, Centipede |
| Special Features | Contains AMP-XC and Organics which is a great starter fertilizer for grass seed. |
| Application Rate | 4-5 lbs. per 1,000 sq. ft. |
| Time to Apply | Spring, Summer, Fall, Winter |
| Waiting Period to Seed | None |
| Delivery System | Granules |
| Brand | Lawn Synergy |
| For Use In | Turf Grass |
Frequently Asked
Frequently Asked
Spreader Settings
Spreader Settings
Documents / Labels
Documents / Labels
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Customer Reviews and Photos
Customer Reviews
4.9 Based on 50 Reviews
Customer Photos
- Reviews
- Questions
Filter Reviews:
AC
05/22/2025
Alec C.
United States
Great Starter Fertilizer
Worked great for my new Bermuda grass seed.
JB
05/14/2025
Jeff B.
United States
RESULTS!!!
Awsome! The advie I was given is working as it was explained to me. Much better than the generic advice from another company I have tried.
WD
05/14/2025
Walter D.
United States
This fertilizer works great
My new lawn is coming up fast and lush. This fertilizer works great! Definitely recommend it
AR
05/09/2025
Arl R.
United States
Fertilizer
So far so good though I still have clover
A
05/07/2025
Anonymous
United States
Not Sure Yet
I currently have a very sad bermuda lawn that needs help. It is sad mostly because when it was put in 6 years ago the yard got a lot of sun but since then the trees have grown larger and now it gets mostly shade. I researched and bought your fescue seed and fertilizer, followed your instructions and planted it. That was a month ago and only a little grass has grown (but to be fair we have had a LOT of rain.) Any advice would be most welcome.
A
05/06/2025
Anonymous
United States
Lawn synergy Bermuda seed
After the ground was prepped the area was watered daily. Within 7 to 10 days there appeared the most gorgeous green mossy abundance of new grass! Now it's at least a half inch tall and flourishing. Easy application and daily water, how wonderful ! Yes! 100 % recommend 👍👍
MJ
05/06/2025
Mike J.
United States
So far so good
Have purchased several different fertilizers and they seem like a great product. I used support on one occasion and even sent pictures to get the correct mixture. Email customer service works great!
MF
04/16/2025
Mike F.
United States
Easy to Apply with Good Results
The starter fertilizer is easy to apply with a walk behind spreader. It has helped a newly seed lawn to germinate and the new grass is coming up with a nice, deep green color. This product seems to have helped in getting my new lawn off to a good start.
S
04/10/2025
Seth 
United States
Good stuff . I am glad I did not get it from big box store.
RM
03/27/2025
ron m.
United States
Too early to tell
Just planted a week ago still waiting for results.
