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Nitrophos Imperial Lawn Fertilizer

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Nitrophos Imperial Lawn Fertlizer contains 2% iron and 15% sulfur with trace elements to add a healthy quick green to your lawn. A quick release formulation gives you immediate results without leaving a long term residual and burning your yard.

Target Pests

Weeds such as... Annual Bluegrass. Annual Sowthistle. Clovers. Black Medic. Blue Toadflax. Bull paspalum . buckhorn plantain. Bur Clover. Carolina Geranium. Chickweed. Cocklebur. Common Dandelion. Common Purslane. Crabgrass. Crowfoot Grass. Cudweed. Cutleaf Evening Primrose. Dichondra. Dollar weed. Florida Beggarweed. Florida Betony. Florida Pusley. Fragrant Cudweed. Henbit. Knotweed. Lambsquater. Lespedeza. Lippia. Moneywort. Morningglory. Narrowleaf Vetch. Parsley-Piert. Oxalis. Pigweed. Purslane. Ragweed. Red Sorrel. Rescuegrass. Sandspur. Sedges. Sgepardspurse. Sicklepod. Spotted Spurge. Spurweed Stinging Nettle. Swinecrest Venus looking glass. Virginia Creeper. Wild Mustard. And Wood sorrel.

For Use In

Use ONLY on St. Augustine and Centipede lawns


Apply evenly across the entire lawn at a rate of 5 lbs for every 1000 sq ft. Do not exceed recommended rates. Sprinkle area with water immediately after application to wash off the grass blades and get the granules off into the soil.

Coverage Area

5 lbs /1000 sq. ft.

Time to Kill

4 to 6 weeks wait two months and repeat applications

Nitrophos Imperial Lawn Fertilizer

Product Q & A

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Browse 13 questions Browse 13 questions and 13 answers
I typically use the Nitro-Phos Barricade product as a pre-emergent twice a year, since it works on both broadleaf and grassy weed. This month (Feb) I want to put down the Nitro-Phos Imperial 15-5-10 for an early green up, but it says it's also a pre-emergent. Can I use the Imperial in lieu of the Barricade and will it work to prevent both the broadleaf as well as the grassy weeds?
Kathy H on Feb 3, 2018
Nitrophos Imperial Lawn Fertilizer
Nitrophos Imperial Lawn Fertilizer
Nitrophos Barricade Granular Pre-emergent Herbicide
Nitrophos Barricade Granular Pre-emergent Herbicide
BEST ANSWER: The Imperial Lawn fertilizer would only work as a fertilizer I do apologize for the error in the description. For the Pre-emergent the Barricade would be what you would want to apply. You can apply both of the product and they would not cause any effects on each other. I would make them in separate applications due to the settings on the spreaders.
My lawn is less than 1000 sq ft. Do you sell smaller bags of fertilizer. A 40 lb bag will last me several years.

How long does fertilizer last in your bag? Do I need to buy a fresh supply each year?
Mark D. on Feb 22, 2017
BEST ANSWER: No sorry that is the only size available of these bags of fertilizer.
Hello, the information says this is good for St. Augustine only. I have Bermuda grass, can you please confirm i am good to go? Thank you.
A shopper on Mar 14, 2018
BEST ANSWER: Use ONLY on St. Augustine and Centipede lawns, you would not want to apply to Bermuda grass lawns.
How long after you put this down is it safe for pets to enter yard?
Samgirls on Apr 21, 2018
BEST ANSWER: I would keep the pets off the area until the application has been completed and the area has fully dried.
hello camille, i see from your response below that the imperial nitro phos is not suitable for Bermuda grass. I talked to Nitro-Phos on a suitable alternative and they actually say that the Imperial is ok for Bermuda. Can you please help with some clarity? Thank you
A shopper on Mar 21, 2018
BEST ANSWER: If they say it is OK, then they would know. I only have the listing as a reference, I was not sure why it would not be.
Is there a retail carrier in Portland Oregon area?
A shopper on Mar 16, 2018
BEST ANSWER: No sorry we are only located in the southern states, we do ship for free.
I just received my order of this product and am confused about amount to apply. The description I read on your website states 5lb per 1000 and Do not exceed the recommended rates. However, the bag says actual bag says 10 to 18lbs per 1000 sq ft. This is 2 to 3 times the recommended amount on your website, and as a first time user of your product I’m hesitant on which direction to follow so need some advice please? Thank you
A shopper on Feb 27, 2018
BEST ANSWER: The rate of application can vary depending on the type and age of lawn. For an established lawn, the application will be 5-6 lb per 1,000 sq ft
Can Nitrophos be used on St. Augustine Floratam grass?
Vicki J on Feb 17, 2018
BEST ANSWER: Yes, this is a recommended rate for southern, Texas Lawns.
Hello Camille
According to the website this product Nitrophos Imperial Lawn Fertilizer can only be used on St Augustine lawn. I live in the Hampton Roads Virginia area and my lawn is Kentucky 31 Blend

What fertilizer do you recommend?
I just receive my Balan Emergent which I will put down in February as you suggested
A shopper on Dec 29, 2017
BEST ANSWER: https://www.solutionsstores.com/nitrophos-superturf-fertilizer-19-4-10

This will work for the active growing months of the lawn.
I have a lawn with Bermuda, WEEDS and centipede. I want the centipede!
Is the Nitrophos Imperial Lawn Fertilizer the proper choice?
Reseeding with centipede, how long should I wait?
Rich on Mar 8, 2017
BEST ANSWER: Yes, the Imperial would be a good fertilizer,

Weed Control: Apply broadleaf herbicides as necessary for control of chickweed, henbit, and others. Centipedegrass is sensitive to certain herbicides, such as 2,4-D, so follow label directions for reducing rates and use with caution. Selected herbicides (e.g., atrazine) can be applied in November or December for control of annual bluegrass and several winter annual broadleaf weeds.
I have a Nitro-Phos Fall Special Fertilizer bag and an Ace Green Turf spreader. What setting should I use?
Art on Oct 30, 2016
BEST ANSWER: I would use the same setting for all. 5 to 6.
How much coverage do you get from a 40lb. bag?
Gil on Oct 17, 2016
BEST ANSWER: 7,500 square feet per 40lb bag of Nitrophos Imperial Lawn Fertilizer (15-5-10)
Can imperial 15-5-10 be used on zoysia?
A shopper on Mar 5, 2018

Customer Reviews

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Already Greening Up
This was my first time to buy this product. I read about it on a website and decided to try it along with their fertilization schedule. It seems like the grass is already turning greener and it's only been a couple weeks since I applied. The shipping was super fast also and the cost was slightly cheaper than buying it at my local nursery.
March 2, 2015

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