Guardian Pre-emergent 13-0-10 Fertilizer

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Guardian Pre-emergent 13-0-10 Fertilizer

Name: Guardian Pre-emergent 13-0-10 Fertilizer
Brand: Lawn Synergy
SKU: 42915755196554
Price: 39.99 USD
Availability: InStock
Rating: 4.7 (82 reviews)

Guardian Pre-emergent 13-0-10 Fertilizer

Prevents crabgrass while feeding your lawn for steady, healthy growth

$39.99

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Select Size 18 lbs. up to 4,500 sqft. 25 lbs. 4,501-7,000 sqft. 50 lbs. up to 12,000 sqft.

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Dreaming of a thick, dark green lawn that’s the envy of the neighborhood? Lawn Synergy’s Guardian 13-0-10 Pre-Emergent Fertilizer helps make that a reality. This powerful formula feeds your lawn with essential nutrients while stopping weeds before they ever germinate.

What makes Guardian 13-0-10 stand out:

Balanced 13-0-10 NPK ratio: Provides nitrogen for steady green growth and potassium for improved drought tolerance, disease resistance, and overall stress protection.
Powerful pre-emergent weed control: Prevents crabgrass and other annual weeds from germinating, allowing your lawn to thrive.
50% XCU slow-release nitrogen: Feeds your lawn gradually over time for long-lasting color while reducing nutrient runoff and leaching.
Safe for all major grass types: Ideal for Tall Fescue, Bermuda, Zoysia, St. Augustine, Centipede, and Kentucky Bluegrass.
Easy to apply: Simply spread with a broadcast spreader and water it in.

Guardian 13-0-10 provides broad-spectrum control of annual grassy and broadleaf weeds, helping you maintain a healthier, cleaner lawn throughout the growing season.

The slow-release nitrogen delivers a steady supply of nutrients, promoting consistent growth, deeper green color, and improved stress tolerance without excessive top growth or clippings.

Dormant lawns? Apply Safeguard 0-0-7 Pre-Emergent instead.

Application Timing

Cool-Season Lawns: February – April (two applications, 6 weeks apart)
Warm-Season Lawns: February – April and September

Pre-emergent applications should be made in spring before soil temperatures reach 55°F for several consecutive days to prevent crabgrass germination.

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