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PENNINGTON

Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4

Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4 is a superior granular blend that feeds residential lawns while stopping germinating weeds before they appear, giving homeowners a thicker, healthier, weed-resistant lawn with one easy seasonal application.

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Pennington Ultragreen Crabgrass Preventer Plus Product Page
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Price as of
02/11/26
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Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4, manufactured by Pennington, is a unique fertilizer and pre-emergent herbicide blend that nourishes home lawns and helps stop broadleaf and grassy weed seeds before they sprout.

There are plenty of lawn products out there that either fertilize or prevent weeds. But very few combine both functions well and even fewer do it as effectively as Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4. The 30% nitrogen content is significant. Many lawn fertilizers top out at 20% or even less, especially when paired with weed preventers. But this product gives your grass a quick, powerful dose of nitrogen—which translates to: Deeper green color, faster recovery from winter dormancy, better early-season growth, and stronger blades and overall turf density.

Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4 is a powerful, convenient, and effective two-in-one lawn care solution that combines season-long weed prevention with a high rate of nitrogen fertilization for deep green, vigorous turf. Designed to stop crabgrass and other annual grassy weeds before they ever sprout, this pre-emergent granular herbicide/fertilizer protects your lawn at its most vulnerable time while feeding it the nutrients it needs to thrive.

Tools Needed

A drop spreader, rotary spreader, broadcast spreader, or push spreader could be used.

How to Use

  • Step 1: Determine how much Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4 to use by measuring the square footage of the treatment area. Find the square footage by measuring the treatment area's length and width in feet, then multiply them to gether (length X width = square footage). For acreage, take the square footage and divide it by one acre (square footage / 43,560 sq. ft. = acres). Depending on the turf type, apply 1.5 to 6 pounds of Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4 per 1,000 sq. ft. 
  • Step 2: Adjust the spreader to the proper calibration, then load the proper amount of product. 
  • Step 3: Spread the product evenly across your lawn while walking at a steady pace to ensure full coverage. After application, irrigate the treatment area with 0.5 inch of rainfall or irrigation, or with shallow (1-2 inches) incorporation. A second application can be made 60 to 90 days after the previous application. 

Where to Use

Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4 can be used in residential lawns.

When to Use

Apply when turf is well-established and when weeds are not present. 

Safety Information

Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4 is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when handling and applying this product. 

Special Considerations

Do not apply to overseeded turf within 60 days after seeding or until after the second mowing, whichever is longer. Injury to desirable seedlings is likely if this product is applied before seedling secondary roots are in the second inch of soil (not thatch plus soil). 

More Information
Restricted Use No
Availability Online
Signal Word CAUTION
Keith's Pro Tip "Mowing is one of the most important practices for a healthy, weed-resistant lawn. Keeping your grass at the proper height for its type helps shade the soil, which reduces weed seed germination and encourages deeper, stronger roots. Regular mowing also promotes even growth and a thicker turf, making it harder for weeds to establish. Always avoid cutting more than one-third of the grass blade at a time, and keep mower blades sharp to prevent tearing, which can stress the grass and make it more susceptible to disease and weed invasion."
Time to Kill Pennington Ultragreen Crabgrass Preventer Plus Fertilizer will control weeds for up to 5 months.
Chemical Type Fertilizer
Formulation Granular
Application Methods Granular Spreading
Product Drawbacks This fertilizer may stain concrete and painted surfaces. If it comes in contact with concrete surfaces, sweep off immediately.
Active Ingredient Prodiamine 0.58% Nitrogen 30% Soluble Potash 4% Iron 5%
Application Equipment Drop Spreader, Push Spreader
Mix Rate Depending on the turf type, apply 1.5 to 6 pounds of Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4 per 1,000 sq. ft. 
Use Sites Outdoors
Yield 12.5 lbs of Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4 will cover 5,000 sq. ft.
EPA Registration No. 32802-67-90098
Shelf Life Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4 will last for 3 years when stored in a dry, clean area.
Comparable Products Bonide Crabgrass and Weed Preventer
Children or pets? No
Property Characteristics None
AvailabilityOnline
Restricted UseNo
BrandPENNINGTON
Keith's Pro Tips"Mowing is one of the most important practices for a healthy, weed-resistant lawn. Keeping your grass at the proper height for its type helps shade the soil, which reduces weed seed germination and encourages deeper, stronger roots. Regular mowing also promotes even growth and a thicker turf, making it harder for weeds to establish. Always avoid cutting more than one-third of the grass blade at a time, and keep mower blades sharp to prevent tearing, which can stress the grass and make it more susceptible to disease and weed invasion."
Product DrawbacksThis fertilizer may stain concrete and painted surfaces. If it comes in contact with concrete surfaces, sweep off immediately.
Target PestsBarnyardgrass, Annual bluegrass, Chickweed, mouseear (from seed), Crabgrass (large, smooth), Crowfootgrass, Cupgrass, Foxtails, Goosegrass, Henbit, Itchgrass, Johnsongrass (from seed), Junglerice, Knotweed, Kochia, Lambsquarter, Lovegrass, Panicum (Texas, fall, browntop), Pigweed, Common purslane, Florida pusley, Rescuegrass, Shepherd’s purse, Broadleaf signalgrass, Persian Speedwell, Sprangletop, Prostrate Spurge, Witchgrass, and Yellow woodsorrel.
Application EquipmentDrop Spreader, Push Spreader
Application MethodsGranular Spreading
Active IngredientProdiamine 0.58% Nitrogen 30% Soluble Potash 4% Iron 5%
Product TypeFertilizer
FormulationGranular
Application RateDepending on the turf type, apply 1.5 to 6 pounds of Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4 per 1,000 sq. ft. 
Shelf LifePennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4 will last for 3 years when stored in a dry, clean area.
Yield12.5 lbs of Pennington Ultragreen Crabgrass Preventer Plus Fertilizer 30-0-4 will cover 5,000 sq. ft.
Use SitesOutdoors
Time to KillPennington Ultragreen Crabgrass Preventer Plus Fertilizer will control weeds for up to 5 months.
Comparable ProductsBonide Crabgrass and Weed Preventer
Use Caution WithBentgrass
EPA Registration #32802-67-90098

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