Kentucky bluegrass fertilizer · prices checked under an hour ago

The cheapest fertilizer for Kentucky bluegrass

Kentucky bluegrass needs 1 to 4 lb of nitrogen per 1,000 sq ft a year.^[1] Nitrogen is the first number on the bag, so the cheapest fertilizer is the one with the lowest price per pound of nitrogen, not the cheapest bag. Here is that ranking from today's verified store prices, and what a year costs.

Cheapest right now

$3.98per lb of nitrogen

LESCO 24-0-11 PolyPlus, 50 lb for $47.77 at Seed World. A 5,000 sq ft Kentucky bluegrass lawn uses $19.90 to $79.62 of it a year.

A year of nitrogen

1 lb of nitrogen on 5,000 sq ft

The low end of the Kentucky bluegrass range. Each bar is the product you would actually spread, at the best store and size for that fertilizer.

LESCO 46-0-0 (stabilized urea)$19.12a year
$76.48 at 4 lb · 50 lb at Siteone · spray only
LESCO 24-0-11 PolyPlus$19.90a year
$79.62 at 4 lb · 50 lb at Seed World
LESCO 25-0-6 PolyPlus$20.00a year
$80.00 at 4 lb · 50 lb at Jerzey Lawns
The Andersons PGF Complete 16-4-8$78.03a year
$312.13 at 4 lb · 40 lb at Amazon
The Andersons PGF Balanced 10-10-10$152.44a year
$609.78 at 4 lb · 18 lb at Amazon
The Andersons Green Shocker 7-1-2$267.32a year
$1,069.29 at 4 lb · 16 lb at Amazon

The plan

How to feed Kentucky bluegrass without wasting money

Nitrogen a year: 1 to 4 lbper 1,000 sq ft
Penn State gives 1 to 2 lb for a low or medium maintenance lawn and 2 to 4 lb for a high quality lawn.^[1]
Each feeding: up to 1 lbof nitrogen per 1,000 sq ft
Purdue: no more than 1 lb of water-soluble nitrogen per 1,000 sq ft in one application.^[2] With LESCO 24-0-11 PolyPlus, 1 lb of nitrogen is 4.2 lb of product per 1,000 sq ft.^[3]
When: Late summer to fall
Put most of the year's nitrogen down from late summer through fall, use less during the spring growth flush, and little to none in summer.^[2]

The Kentucky bluegrass mistake

Feeding a stressed lawn. Purdue says not to fertilize dormant or severely drought-stressed turf, or frozen ground in winter.^[2]

What you pay at the register

Bags to buy this year

You buy whole bags. For a 5,000 sq ft Kentucky bluegrass lawn on LESCO 24-0-11 PolyPlus: 1 lb of nitrogen a year is 21 lb of product, 1 bag for $47.77; 4 lb is 83 lb of product, 2 bags for $95.54.

Every option

Fertilizers ranked for Kentucky bluegrass

Sorted by cost per pound of nitrogen. Product per 1,000 sq ft for 1 lb of nitrogen is 1 divided by the nitrogen percent.^[9]

Cheapest nitrogen · 46-0-0

LESCO 46-0-0 (stabilized urea)

46% nitrogen by weight^[5]. To put down 1 lb of nitrogen per 1,000 sq ft, spread 2.2 lb of product.
The label says this bag is for spray applications only: you dissolve it in water and spray it, so it is not a spreader product.
All of the nitrogen is quick-release (stabilized, not slow-release), so stay at or under 1 lb of nitrogen per 1,000 sq ft per feeding.
No phosphorus.

Per lb of nitrogen: $3.82
A year at 1 lb N: $19.12
Best value bag: 50 lb for $87.95 at Siteone, holds 23 lb of nitrogen

$87.95 at Siteone Walmart: $104.99

24-0-11

LESCO 24-0-11 PolyPlus

24% nitrogen by weight^[3]. To put down 1 lb of nitrogen per 1,000 sq ft, spread 4.2 lb of product.
Label rate 4.2 lb per 1,000 sq ft; a 50 lb bag covers 12,000 sq ft.
Part of the nitrogen is slow-release: half of it on the 50% version, and SiteOne also sells 56% and 75% versions under the same name.
No phosphorus.

Per lb of nitrogen: $3.98
A year at 1 lb N: $19.90
Best value bag: 50 lb for $47.77 at Seed World, holds 12 lb of nitrogen

$47.77 at Seed World

25-0-6

LESCO 25-0-6 PolyPlus

25% nitrogen by weight^[4]. To put down 1 lb of nitrogen per 1,000 sq ft, spread 4.0 lb of product.
Label rate 4 lb per 1,000 sq ft; a 50 lb bag covers about 12,500 sq ft.
Half the nitrogen is slow-release. Contains iron, which can stain concrete.
No phosphorus.

Per lb of nitrogen: $4.00
A year at 1 lb N: $20.00
Best value bag: 50 lb for $50.00 at Jerzey Lawns, holds 12.5 lb of nitrogen

$50.00 at Jerzey Lawns

16-4-8

The Andersons PGF Complete 16-4-8

16% nitrogen by weight^[6]. To put down 1 lb of nitrogen per 1,000 sq ft, spread 6.3 lb of product.
Label rate up to 3.6 lb per 1,000 sq ft; the 40 lb bag covers 11,100 sq ft.
A quarter of the nitrogen is slow-release. Contains phosphorus and iron.

Per lb of nitrogen: $15.61
A year at 1 lb N: $78.03
Best value bag: 40 lb for $99.88 at Amazon, holds 6.4 lb of nitrogen

$99.88 at Amazon

10-10-10

The Andersons PGF Balanced 10-10-10

10% nitrogen by weight^[7]. To put down 1 lb of nitrogen per 1,000 sq ft, spread 10.0 lb of product.
An 18 lb bag covers 5,000 sq ft, which puts down only about a third of a pound of nitrogen per 1,000 sq ft.
Equal phosphorus and potash, all quick-release nitrogen.

Per lb of nitrogen: $30.49
A year at 1 lb N: $152.44
Best value bag: 18 lb for $54.88 at Amazon, holds 1.8 lb of nitrogen

$54.88 at Amazon Walmart: $54.88

7-1-2

The Andersons Green Shocker 7-1-2

7% nitrogen by weight^[8]. To put down 1 lb of nitrogen per 1,000 sq ft, spread 14.3 lb of product.
Label rate 3 lb per 1,000 sq ft; the 16 lb bag treats up to 5,333 sq ft.
About 0.2 lb of nitrogen per 1,000 sq ft per pass at the label rate, all of it quick-release.

Per lb of nitrogen: $53.46
A year at 1 lb N: $267.32
Best value bag: 16 lb for $59.88 at Amazon, holds 1.1 lb of nitrogen

$59.88 at Amazon Walmart: $69.88

Also for your lawn

Preventing weeds in Kentucky bluegrass

Crabgrass preventers that are labeled for Kentucky bluegrass, ranked by cost per 1,000 sq ft.

Cheapest pre-emergent for Kentucky bluegrass →

Other grasses

Fertilizer cost for another grass

Questions people ask

Straight answers

What is the cheapest fertilizer for Kentucky bluegrass?

Per pound of nitrogen, the cheapest spreader fertilizer we track that suits Kentucky bluegrass is LESCO 24-0-11 PolyPlus: $3.98 per pound of nitrogen (50 lb for $47.77 at Seed World, checked 10/17/2026). A 5,000 sq ft lawn at 1 to 4 lb of nitrogen a year uses $19.90 to $79.62 of it.

How much nitrogen does Kentucky bluegrass need a year?

1 to 4 lb of actual nitrogen per 1,000 sq ft per year. Penn State gives 1 to 2 lb for a low or medium maintenance lawn and 2 to 4 lb for a high quality lawn.

When should I fertilize Kentucky bluegrass?

Put most of the year's nitrogen down from late summer through fall, use less during the spring growth flush, and little to none in summer.

How many times a year should I fertilize Kentucky bluegrass?

It depends on the yearly total and the size of each feeding. Purdue: no more than 1 lb of water-soluble nitrogen per 1,000 sq ft in one application. At 4 lb a year and 1 lb per feeding, that is at least 4 feedings; at the low end of the range, fewer.

Sources

Where every rate and timing comes from

[1]Home Lawn to Maintain (crop code 2001) soil test recommendations, Penn State Agricultural Analytical Services Laboratory
[2]AY-22-W, Fertilizing Established Cool-season Lawns, Purdue Extension
[3]LESCO 24-0-11 PolyPlus bag label (PDF), SiteOne Landscape Supply
[4]LESCO 25-0-6 PolyPlus bag label (PDF), SiteOne Landscape Supply
[5]LESCO 46-0-0 100% NOS AM bag label (PDF), SiteOne Landscape Supply
[6]PGF Complete 16-4-8 40 lb bag label (PDF), The Andersons
[7]PGF Balanced 10-10-10 bag label (PDF), The Andersons
[8]Green Shocker 7-1-2 bag label (PDF), The Andersons
[9]HGIC 1201, Fertilizing Lawns, Clemson Cooperative Extension

Prices come from the Lawn Dominator price feed, which checks retailer listings automatically and publishes only prices that pass its verification audit. Labels are the law: if anything here disagrees with the label on the product you buy, follow the label.

As an Amazon Associate I earn from qualifying purchases. Store buttons are paid links. Prices are collected automatically and can lag retailer changes; always confirm the price, size, and shipping at checkout. Product prices and availability are accurate as of October 17, 2026 at 12:11 PM CDT and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of the product.

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