Pre-emergent Fertilizer

Pre-emergent Fertilizer

Premium pre-emergent to prevent weed seeds from germinating

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A white bag of Lawn Synergy Starter 15-20-10 professional lawn fertilizer with green geometric accents and branding.

RECOMMENED NOW

Emerald 10-0-20

Tall Fescue, Kentucky Bluegrass, Zoysia, St. Augustine, and Centipede Lawns.
A white bag of Lawn Synergy Starter 15-20-10 professional lawn fertilizer with green geometric accents and branding.

RECOMMENED NOW

Almighty 20-0-10

Bermuda Lawns & Lawns needing more growth.
A white bag of Lawn Synergy Starter 15-20-10 professional lawn fertilizer with green geometric accents and branding.

Seeding or Sod

Starter Fertilizer

The Key to Faster Germination & Stronger Roots

Organics Option

BioBoost

Build up organics within the soil while also feeding the lawn.

Measure Your Lawn

Order the correct amout of product based on the sq ft of your lawn.

Spreader Settings

Common spreader settings for various lawn products.
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Shop by Category

Lawn Fertilizer

Feed your lawn for season-long results.

Grass Seed

Clean weed-free seed for a ultra-dark green lawn.

Weed Control

Clean up pesky weeds that don't belong in your lawn.

Fungicide

Prevent and cure disease in your lawn and ornamentals.

Insecticide

Don't let insects destroy your lawn. Treat ticks mosquitos, and more.

Shop By Lawn Type

Tall Fescue

Bermuda

Zoysia

St. Augustine

Centipede

Northern Lawns

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How It Works

Choose Your Lawn
1

Choose Your Lawn

Tell us your lawn type and goals.

Get Your Program
2

Get Your Program

We recommend the right products and timing.

Apply With Confidence
3

Apply With Confidence

Simple steps for a thicker, greener lawn.

Choose Your Lawn
1

Choose Your Lawn

Tell us your lawn type and goals.

Get Your Program
2

Get Your Program

We recommend the right products and timing.

Apply With Confidence
3

Apply With Confidence

Simple steps for a thicker, greener lawn.

Pre-Emergent Fertilizer: Weed Prevention + Lawn Nutrition

A pre-emergent fertilizer is the perfect way to feed your lawn while preventing weeds before they sprout. Combining fertilizer and pre-emergent saves time and effort by delivering essential nutrients and season-long weed control in a single application. Whether you need a spring pre-emergent fertilizer or a pre-emergent with fertilizer for year-round protection, we’ve got the right products to keep your lawn strong and weed-free.

Should You Apply Fertilizer or Pre-Emergent First?

With a fertilizer pre-emergent combo, you don’t have to choose! Our specially formulated pre-emergent lawn fertilizers ensure that your grass gets the nitrogen, potassium, and weed prevention it needs in one easy step.

Our Top Pre-Emergent Fertilizers

  • 13-0-10 Guardian – A pre-emergent with fertilizer, perfect for early spring applications. It blocks crabgrass and weeds while providing nitrogen and potassium to support healthy growth.
  • 0-0-7 Safeguard – A pre-emergent option without nitrogen, ideal for preventing weeds without stimulating extra growth in dormant or low-maintenance lawns.

When to Apply a Pre-Emergent and Fertilizer

For the best results, apply a spring pre-emergent fertilizer before soil temperatures reach 55°F for three consecutive days. This prevents crabgrass and other weeds from sprouting while giving your grass the nutrients it needs to thrive.

Feed Your Lawn & Stop Weeds Before They Start

Shop our pre-emergent and fertilizer solutions today and give your lawn the best start to the season!

Current Best Sellers

Headway G Fungicide 30 lb. Bag

Headway G Fungicide

$78.95

Prevent and cure disease
Emerald 10-0-20 Lawn fertilizer with iron

Emerald 10-0-20 Lawn Fertilizer

$39.99

Low nitrogen stress blend
Almighty 20-0-10 Lawn Fertilizer

Almighty 20-0-10 Lawn Fertilizer

$39.99

High nitrogen for growth
bifen 7.9F pint

Bifen 7.9F Insecticide

$29.95

Treats insects and mosquitos
Pro-Grade Products

Pro-Grade Products

Fast Shipping

Fast Shipping

DIY Friendly

DIY Friendly

Expert Support

Expert Support

Got Questions?

Frequently Asked.

Can I use pre-emergent fertilizer if I plan to seed my lawn?

No. Pre-emergent lawn fertilizer will prevent all seeds from germinating, including grass seed. If you plan to overseed, wait at least 6–8 weeks after applying a pre-emergent before seeding.

How does pre-emergent fertilizer work?

Pre-emergents create a barrier in the soil that stops weed seeds from sprouting. However, they do not kill existing weeds—so they must be applied before weed seeds germinate to be effective.

When should I apply pre-emergent fertilizer?

Apply a spring pre-emergent fertilizer before soil temperatures reach 55°F for three consecutive days. This is the point at which crabgrass and other weeds start to germinate. In most areas, this falls between late winter and early spring.

Should I apply fertilizer or pre-emergent first?

If you use a fertilizer and pre-emergent combo, you can apply both at the same time. Otherwise, apply pre-emergent first to block weeds, then fertilize 2–3 weeks later to encourage healthy lawn growth.

Do I need to water in pre-emergent fertilizer?

Yes! To activate the pre-emergent barrier, water the product in with at least ½ inch of irrigation or rainfall within 48 hours of application.