7-0-20 Fertilizer
PotassiumAlso known as: Stress blend
7-0-20 is 7% nitrogen, 0% phosphate and 20% potash by weight. To apply 1 lb of nitrogen per 1,000 sq ft, spread 14.3 lbs of product per 1,000 sq ft; a 50-lb bag covers about 3,500 sq ft at that rate.
What 7-0-20 Means
Nitrogen (N)
7%
3.5 lb per bag
Green color and growth
Phosphate (P₂O₅)
0%
0 lb per bag
Root growth, new seedlings
Potash (K₂O)
20%
10 lb per bag
Stress, drought and cold tolerance
Pounds shown are per 50-lb bag. The N:P:K ratio simplifies to 7:0:20. The remainder of the bag is carrier, filler, and secondary nutrients.
How Much 7-0-20 to Apply
Lawn feeding is measured in pounds of nutrient per 1,000 sq ft. Here's how much product hits each common target.
| Target | Product / 1,000 sq ft | Per acre | 50-lb bag covers | Delivers (N-P-K lb) |
|---|---|---|---|---|
| 0.25 lb N | 3.57 lb | 156 lb | 14,000 sq ft | 0.25-0-0.71 |
| 0.5 lb N | 7.14 lb | 311 lb | 7,000 sq ft | 0.5-0-1.43 |
| 0.75 lb N | 10.7 lb | 467 lb | 4,667 sq ft | 0.75-0-2.14 |
| 1 lb N | 14.3 lb | 622 lb | 3,500 sq ft | 1-0-2.86 |
What It's For
A low-nitrogen, high-potassium "stress blend" for feeding through summer heat and drought without pushing top growth.
When to Use It
Summer on cool-season lawns, or fall when you want potassium without much nitrogen.
Before You Spread It
- Not a growth feed. It's for maintaining turf, not thickening it.
- Phosphorus and potassium needs vary a lot from lawn to lawn. A soil test tells you whether you need them at all.
7-0-20 Products in Our Catalog
7-0-20 Calculator
Enter your lawn size to get the total amount, or change the analysis to check a different bag.
Spread 14.29 lb per 1,000 sq ft, 71.43 lb for 5,000 sq ft (1.43 bags).
Delivers 1 lb N, 0 lb P₂O₅ and 2.86 lb K₂O per 1,000 sq ft. Never exceed the label rate.
Common Questions
How much 7-0-20 per 1,000 sq ft?
To deliver 1 lb of nitrogen per 1,000 sq ft, apply 14.3 lbs of 7-0-20 per 1,000 sq ft, or about 622 lbs per acre. Many applications use half that or less, and the product label rate always comes first.
What is 7-0-20 fertilizer used for?
A low-nitrogen, high-potassium "stress blend" for feeding through summer heat and drought without pushing top growth.
When should I apply 7-0-20?
Summer on cool-season lawns, or fall when you want potassium without much nitrogen.
What do the numbers 7-0-20 mean?
They're the percentages by weight of nitrogen (N), phosphate (P₂O₅) and potash (K₂O). A 50-lb bag of 7-0-20 contains 3.5 lbs of nitrogen, 0 lbs of phosphate and 10 lbs of potash; the rest is carrier and other ingredients.
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