Top 5 Cheapest Lawn Fertilizers: Budget-Friendly Guide

Does your lawn look more brown than green? Do you dream of thick, vibrant grass but cringe at the high price tags on fertilizer bags? You are not alone! Many homeowners want a beautiful yard, but they worry about spending too much money to get it. Finding the perfect balance between quality and cost can feel like a frustrating guessing game.

Choosing the “cheapest” fertilizer often means risking a weak lawn later. On the flip side, the most expensive brands don’t always work best for your specific soil. This confusion stops right here. This post cuts through the noise. We will show you exactly how to find the best value fertilizer that feeds your lawn effectively without emptying your wallet.

Keep reading to discover our top picks for budget-friendly, high-performance lawn foods. We break down what ingredients matter and where to find the best deals. Get ready to transform your yard into the envy of the neighborhood, affordably!

Top And Cheapest Lawn Fertilizer Recommendations

No. 1
Scotts Turf Builder Lawn Food - Fertilizer for All Grass Types, 5,000 sq. ft., 12.5 lbs.
  • Scotts Turf Builder Lawn Food feeds and strengthens grass to help protect against future problems
  • Fertilizer builds strong, deep roots and improves the lawn's ability to absorb water and nutrients (vs. unfed lawn)
  • Apply lawn care product to a wet or dry lawn
  • Grass fertilizer works on any grass type
  • One 12.5 lb. bag of Scotts Turf Builder Lawn Food covers 5,000 sq. ft.
No. 2
Pennington Full Season Lawn Fertilizer 32-0-5 4M 11.2lb
  • One application and done for a season
  • Contains natural beneficial microorganisms that revitalize soil
  • Contains 5% iron for deep greening
  • Contains polymer coated urea that slowly releases nitrogen up to 4 months
  • Product not available in Hawaii and South Dakota
No. 3
True Organic Liquid Lawn Food – Rapid Green-Up Lawn Fertilizer with 1% Iron – Covers Up to 2,000 Sq. Ft. – 32 fl. oz. Hose-End Sprayer
  • Rapid Green-Up Formula: True Organic Liquid Lawn Food is formulated with 1% iron to quickly green your lawn while promoting healthy growth.
  • Supports Strong Roots: Enhances root development and serves as an excellent grass seed starter for new lawns.
  • Exclusive Organic Blend: Contains Soy Protein Hydrolysate and other premium ingredients proven to benefit both soil and plants.
  • Convenient Application: Easy-to-use 32 fl. oz. hose-end sprayer allows for quick feeding of up to 2,000 sq. ft. in just 8 minutes.
  • Balanced Nutrients for Lawn Health: Delivers 4% nitrogen (3.9% water-soluble), 1% iron, and 1% soluble potash for sustained nourishment and vibrant greenery.
No. 4
Scotts Liquid Green Max Lawn Food: 2,000 sq. ft., 2-in-1 Fertilizer and Iron Supplement, Use on Any Grass Type, 32 oz.
  • Scotts Liquid Green Max Lawn Food is your go-to liquid fertilizer and iron supplement for greening your lawn in just 3 days, so bring on those last-minute barbecues and an outdoor season chock-full of fun
  • The dual-action, 2-in-1 formula feeds and supplements with iron to enhance and deepen the green color of your grass
  • Apply to any type of grass, from Kentucky Bluegrass to Bermudagrass; for the best results use regularly from early spring through late fall
  • A well-fed lawn leads to a green lawn, which cleans air, prevents runoff and soil erosion, and makes the great outdoors even greater
  • Application is as easy as connecting your hose to the bottle, pointing the spray nozzle and letting this liquid fertilizer cover up to 2,000 sq ft—no granules, no spreaders, no hassle
No. 5
Advanced 16-4-8 Balanced NPK - Lawn Food Quality Liquid Fertilizer - Spring & Summer Concentrated Spray - Any Grass Type - Simple Lawn Solutions (32 Ounce)
  • Complete NPK Lawn Food: 16-4-8 is the perfect blend of key macronutrients. This lawn liquid food turf fertilizer also contains Seaweed & Fish.
  • Contains High Quality Feed Grade Ingredients: Nourish your lawn with pure liquid Nutrients in a ready to use sprayer
  • Easy To Use: Designed to be easily applied. This complete Nitrogen, Phosphate and Potash formula gives your grass greening & growth while providing nutrients for lush lawns
  • All Grass types: Including Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Florida Palmetto, Bahia, Fescue, Ryegrass & Kentucky Bluegrass
  • Produced In The United States: 16-4-8 is manufactured in the United States of America, by a family owned business with 25 years of former experience in the commercial professional turf industry.
No. 6
Scotts Turf Builder Weed and Feed3 - Weed Killer Plus Lawn Fertilizer, Controls Dandelion and Clover, Grass Fertilizer For Up To 5,000 sq. ft., 14.29 lbs.
  • WEED KILLER PLUS LAWN FOOD: Scotts Turf Builder Weed & Feed3 weed killer plus fertilizer for grass kills existing listed weeds and feeds to thicken your lawn and crowd out future weeds
  • WEED CONTROL FOR LAWNS: These weed killer plus lawn fertilizer granules control over 50 listed lawn weeds, including clover, dandelion, plantain, morningglory, chicory, eveningprimrose, and purslane
  • WEED AND FEED FOR LAWNS: Apply this combination weed control and lawn food to your wet lawn when weeds are actively growing and daytime temperatures are consistently between 60°F and 90°F; don't apply more than 2X per year
  • USE ON LISTED GRASS TYPES: Apply this lawn care product to Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass (temporary discoloration may occur on some grasses)
  • DO NOT USE ON: Do not use this weed killer for lawns on St. Augustinegrass (including Floratam), Dichondra, Lippia, Carpetgrass, and Bentgrass lawns
No. 7
Farmer’s Secret Lawn Booster Fertilizer - Super Concentrated - All Around Fertilizer for All Types of Lawns and Turfs (32oz)
  • Give your lawn the boost it needs to stay healthy and look lusciously green with this well-balanced formula!
  • Use on all types of lawns and turfs - Effective as a monthly feed for all types of grass
  • Well-balanced formula - This has everything most lawns need: macronutrients (nitrogen, phosphorus, potassium), key micronutrients and humics (that will benefit the soil beneath your lawn)…if you're looking to use only one product on your lawn, this is it!
  • Super, super concentrated - A little goes a long way, for normal feedings we recommend 8-12ozs per 1,000 square feet of lawn applied monthly
  • Farmer’s Secret products are made with pride in Kentucky and put the know-how of award-winning farmers into your hands. Let us help you help your lawn!
No. 8
Scotts Turf Builder Southern Lawn Fertilizer for Southern Grass, 5,000 sq. ft., 14.06 lbs.
  • Scotts Turf Builder Southern Lawn Food is a fertilizer specially formulated for Southern lawns
  • The included Scotts All-in-One Particles build strong, deep grass roots to protect against heat and drought
  • Apply this grass fertilizer to a wet or dry lawn during the growing season
  • This lawn care product is safe to use on Southern grass
  • One 14.06 lb. bag of Scotts Turf Builder Southern Lawn Food covers 5,000 sq. ft.

The Ultimate Buying Guide: Finding the Cheapest Yet Best Lawn Fertilizer

You want a lush, green lawn without spending a fortune. Finding the “and cheapest” lawn fertilizer requires balancing low cost with real results. This guide helps you navigate the options.

Key Features to Look For in Affordable Fertilizer

When you shop for cheap fertilizer, you still need to check the label carefully. Don’t just grab the cheapest bag without looking.

1. The N-P-K Ratio
  • Nitrogen (N): This is the most important number for green growth. Look for a higher first number (e.g., 20-5-10). Nitrogen feeds the green blades quickly.
  • Phosphorus (P): This helps with strong root development, especially for new lawns.
  • Potassium (K): This helps the grass handle stress, like heat or drought.

The cheapest options often focus heavily on Nitrogen, which is great for quick color boosts.

2. Fertilizer Type: Quick vs. Slow Release
  • Quick Release: These fertilizers work fast. They are usually cheaper upfront, but you might need to apply them more often.
  • Slow Release: These feed the lawn over several weeks or months. They might cost slightly more per bag, but you save money and time by not applying them as frequently. For the absolute cheapest upfront cost, quick-release is often the winner.

Important Materials: What’s Inside Matters

The materials determine how effective the fertilizer is. Cheaper fertilizers might use different sources for their nutrients.

Understanding Nitrogen Sources

Inexpensive fertilizers often use fast-acting nitrogen sources like Urea. Urea is very cheap to produce. Better, but slightly pricier, fertilizers use coatings or sulfur-coated urea (SCU) for slow release.

Filler Content

Some budget brands add more “filler” material to bulk up the bag. While this isn’t harmful, you want the maximum amount of actual N-P-K per dollar spent. Read the guaranteed analysis to see the concentration.

Factors That Improve or Reduce Quality (and Price)

What makes a fertilizer expensive or cheap? Usually, it is how long the nutrients last.

Quality Boosters (Usually Increase Cost)
  • Micronutrients: Adding small amounts of iron or magnesium makes the grass look deeper green. These often increase the price slightly.
  • Weed Control Additives: If the bag includes weed killers (often labeled as “Weed & Feed”), the price goes up significantly. Skip these if your main goal is just the cheapest fertilizer.
Cost Reducers (Usually Found in Cheapest Brands)
  • No Added Extras: The cheapest bags contain only the basic N-P-K blend with no added iron or moss control.
  • Higher Concentration of Quick Release: As mentioned, fast-acting nitrogen is inexpensive, leading to a lower initial price point.

User Experience and Use Cases

How you use the fertilizer affects which cheap option suits you best.

Case 1: The Urgent Green-Up

If your lawn looks pale right before a big party, a very cheap, high-nitrogen, quick-release fertilizer works perfectly. You see results in days. You accept that you will need to reapply sooner.

Case 2: Budget-Conscious Seasonal Feeding

If you plan your feeding schedule around the seasons (Spring, Early Summer, Fall), look for the cheapest **bulk** bag of a balanced N-P-K ratio. Buying a larger bag generally lowers the cost per pound.

Application Tips for Cheap Fertilizer

Always use a spreader when applying cheap, granular fertilizer. If you spread it by hand, you risk burning small patches of the lawn because the cheap granules can be unevenly sized.


10 Frequently Asked Questions (FAQ) About Cheap Lawn Fertilizer

Q: Does the cheapest fertilizer actually work?

A: Yes, it works, especially for making the lawn look green quickly because of the high Nitrogen content. However, the green color might not last as long as more expensive types.

Q: What is the best N-P-K ratio to look for in a cheap bag?

A: Look for a ratio where the first number (Nitrogen) is high, like 25-0-5 or 30-0-0. This gives you the most “green power” for your money.

Q: Should I buy liquid or granular fertilizer if I want the cheapest option?

A: Granular (the dry pellets in a bag) is almost always cheaper per square foot than pre-mixed liquid fertilizers.

Q: How do I avoid burning my lawn when using cheap fertilizer?

A: Always water your lawn thoroughly right after you apply the granular fertilizer. This helps dissolve the nutrients and move them down into the soil.

Q: Can I use cheap fertilizer on brand new grass seed?

A: Be careful. New grass needs Phosphorus (the middle number) for roots. If the cheap fertilizer is 30-0-0, it lacks the root support new grass needs. Use a starter fertilizer for seeding.

Q: Are generic store brands cheaper than name brands?

A: Usually, yes. Generic or house brands often use the same basic materials but charge less for the packaging and advertising.

Q: What does “slow-release” mean, and why is it usually more expensive?

A: Slow-release means the fertilizer feeds the grass slowly over 6 to 12 weeks. This costs more because the manufacturer coats the nutrients, making them last longer.

Q: When is the best time of year to buy cheap fertilizer?

A: Stores often heavily discount fertilizer right after peak growing seasons, like late summer or early fall, when demand drops off.

Q: Does the color of the fertilizer matter?

A: No. The color is just dye to help you see where you have spread it. It does not change the feeding quality.

Q: Can I mix my cheap fertilizer with other products?

A: Only mix it with products specifically labeled as safe to mix. Never mix weed killer and plain fertilizer unless the bag says you can, or you risk damaging your grass.