13-0-10 Guardian Pre-emergent Fertilizer

13-0-10 Guardian Pre-emergent Fertilizer

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Lawn Synergy

13-0-10 Guardian Pre-emergent Fertilizer

13-0-10 Guardian Pre-emergent Fertilizer


50% Stabilized Nitrogen Pre-emergent Prevents Crabgrass and Feeds Lawn
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Regular price $39.99
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Dreaming of a thick, green lawn that's the envy of the neighborhood? Lawn Synergy's 13-0-10 Pre-Emergent Lawn Fertilizer can make that dream a reality. This powerful formula not only feeds your lawn with essential nutrients for healthy growth, but it also prevents weeds from even germinating.

Here's what makes Lawn Synergy's 13-0-10 Pre-Emergent Lawn Fertilizer so special:

  • Balanced 13-0-10 NPK ratio: Provides essential nitrogen for green growth that is slow-release, and potassium for improved drought tolerance, disease resistance, and stress.
  • Powerful pre-emergent weed control: Stops weeds like crabgrass, and other weed seeds from germinating, giving your lawn a chance to thrive.
  • 50% stabilized nitrogen: Feeds your lawn gradually over time, preventing nutrient runoff and leaching for a nice deep green color.
  • Safe for all grass types: Works on Tall Fescue, Bermuda, Zoysia, St. Augustine, Centipede, and Kentucky Bluegrass lawns.
  • Easy to use: Simply broadcast over your lawn and water it in!

This pre-emergent herbicide is effective against a wide range of annual grassy and broadleaf weeds, making it an ideal choice for maintaining a healthy, weed-free lawn.

The stabilized nitrogen in this fertilizer is specially formulated to release slowly over time, providing a steady supply of nutrients to your lawn over an extended period. This results in a longer-lasting green color, improved stress tolerance, and enhanced overall growth without excessive clippings.

Dormant Lawns?  Apply 0-0-7 Safeguard Pre-emergent

Application Timing:

Cool Season Lawns: February - April (two applications 4-6 weeks apart)

Warm Season Lawns: February - April & September

*Pre-emergent should be applied in spring before soil temperatures reach 55 degrees consecutively to prevent crabgrass germination.

Looking for an Automatic Program?

Details

Key Value
Active Ingredient .37% Prodiamine
Lawn Types Tall fescue, Bermuda, Zoysia, St. augustine, Centipede, Kentucky bluegrass, Ryegrass
Special Features Prevents weeds and slowly feeds lawn
Application Rate 4-5 lbs. per 1,000 sq. ft. Recommended 2 applications for maximum protection against weed germination
Time to Apply Spring, Fall
Waiting Period to Seed 120 Days
Delivery System Granules
Brand Lawn Synergy
For Use In Turf Grass, Landscape Beds

Frequently Asked

When should I apply pre-emergent?

Pre-emergent herbicide is best applied before weeds germinate. For cool season lawns, pre-emergent herbicide should be applied before soil temperatures reach 55 degrees consecutively to prevent crabgrass and other weeds.

For warm season lawns, pre-emergent herbicide should be applied in the spring before soil temperatures reach 55 degrees and in the fall, typically in September for season long control

I applied pre-emergent too late. Now what?

Unfortunately pre-emergents must be applied before weeds germinate. It is very important to apply pre-emergent early before soil temperatures warm up or before coming into the season. You will see additional weed pressure during the growing months that will need to be attended to.

How long do I need to wait until I can seed?

We recommend waiting at least 3-4 months before seeding can take place. Spot seeding can be done if the soil is agitated and or replaced with new soil.

What makes this pre-emergent better?

50% stabilized nitrogen will supply a continuous feed to your lawn, where most other fertilizers will leech through the soil faster and into the atmosphere before they can be used and not provide a consistent release of nutrients

Spreader Settings

Spreader settings for fertilizer 4-5 lbs per 1,000 sqft. Spreader settings for fertilizer 4-5 lbs per 1,000 sqft.

Documents / Labels

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Customer Reviews and Photos

Customer Reviews
4.6 Based on 26 Reviews
5 ★
81% 
21
4 ★
12% 
3
3 ★
0% 
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2 ★
4% 
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Filter Reviews:
SF
02/18/2025
Steven F.
United States

We will see

My product appeared to be from a “let’s clean out the warehouse of old product” one of the bags had a big tear in it and the shipping boxes seemed to be weak. One of the boxes was also busted. (Delivery service I’m sure) Sense it’s preemergant I can say how it preforms yet.

NP
02/17/2025
Nicole P.
United States

Can’t Wait

This is my second shipment and I can’t wait until it gets warmer. My lawn is already looking good much better then the previous years during this time of the year. The Lawn Synergy subscription takes the guesswork out of the lawn project.

WC
02/13/2025
Wilson C.
United States

Quality Service, Quality Product

I did my first application a little over a week ago, so still awaiting the overall effectiveness. Yet, I am fully confident everything will go smoothly! Tony was a huge help to me with questions I had regarding my yard upon purchase of this product. Great company. Great service.

A
02/13/2025
Anonymous
United States

On-Line Service in a Flash

Awesome company…ordered some pre-emergent fertilizer and arrived in Oklahoma in 4 days! Their website on amount of fertilizer needed, type of fertilizer for my region, spreader settings, and timelines are great reference points. I will continue to use them over local stores.

TT
02/11/2025
Troy T.
United States

review

i have bought a few things and all are very good.

MF
02/11/2025
Meade F.
United States

Guardian Application

Put my 1st application of the yr on Feb 1. Live in Fl and grass is still mostly dormant so nothing to report yet.

A
02/10/2025
Anonymous
United States

13-0-10

Muy buen producto

A
02/10/2025
Anonymous
United States

Es perfecto

Asta el momento se está recuperando mi pasto

PM
02/10/2025
Paul M.
United States

BEST PRODUCT

Best fertilizer and fertilizer company I have ever used being in Property Management for over 23 years. Paul Elite Property Management & Services

AB
02/04/2025
Adesh B.
United States

Definitely worth it

I've been using this product since I fired the big name lawn service about 8 months ago. Not only have my lawn never looked better, but I'm saving a lot by doing it myself. Highly recommend!!!

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