Best Spring Lawn Fertilizer

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Best Spring Fertilizer

What is the best spring lawn fertilizer?   Lawns want nutrients in a basic ratio of 4-1-2.  (NOTE: 16-4-8 is a 4-1-2 ratio)  This means four parts nitrogen to one part phosphorous to two parts potassium. Often referred to as the N-P-K Ratio.  There is NEVER a need to vary from this ratio unless a SOIL TEST reveals that there is a deficiency in a nutrient that requires a varying ratio. (PERIOD) So it’s simple, the best spring lawn fertilizer is PGF Complete

The MYTH that adding EXCESS amounts of a nutrient will somehow promote a plant to do something different is in fact a myth.  Adding MORE than a plant requires can actually harm the plant, lock up other nutrients, and can also kill or reduce microbial activity.  So, one more time… without a soil test telling you different, use a 4-1-2 ratio.

Some myth links:     Myth link one       Myth link two

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PGF Complete now comes in both 18 lb and 40 lb bags.  It’s the PERFECT spring fertilizer and can be applied every 4 weeks during the spring lawn growing season.  Note: Prices on Amazon INCLUDE shipping.







It’s More Than N-P-K

PGF Complete contains nitrogen, phosphorous, and potassium as the main ingredients, however it’s more complex (complete).  It contains micro nutrients, Iron, and Humic DG as well.  With ONE PASS you spring lawn gets everything it needs to super healthy. 

Super Fast Dark Green Lawn

Once your spring lawn is in “growing mode” you’ll see an amazing difference.  In the spring you’ll see a stunning change in about 2 weeks. Once the weather gets warmer, PGF Complete acts even faster.  Results can be seen in as little as 5 days.

Why Particle Size Matters

Turf professionals understand that the smaller the particle size, the more particles per square inch you get. This means MUCH better coverage.  PGF Complete is a PROFESSIONAL GRADE fertilizer now available to the average consumer.

Ext office Citations Below

1- University of Florida

“In the absence of a soil sample, it is best to use a fertilizer with a 3-1-2 or 4-1-2 ratio of nitrogen, phosphorus and potassium. Examples of fertilizers with these ratios are 12-4-8 and 16-4-8. These numbers tell you the percentages of nitrogen (N), phosphorus (P) and potassium (K), and always in that order (sometimes referred as N-P-K). A fertilizer which contains all three of these elements is referred to as a complete fertilizer.” Citation 

2- Clemson

“In the absence of a soil test, use a complete turf-grade fertilizer with a 4-1-2 ratio, such as 16-4-8. Apply 1 pound of actual nitrogen per 1000 square feet.” Citation

3- University of Illinois

“Recommended ratios of N-P-K for lawn fertilizers include 3:1:2 or 4:1:2. Another important factor in choosing nitrogen fertilizers is what kind of nitrogen is actually in the product. Nitrogen fertilizer may consist of fast-release or controlled-release nitrogen.”  Citation 

4- University of Missouri

“Good maintenance type fertilizers should be in a 3-1-2 ratio of nitrogen (N) to phosphorus (P) to potassium (K). An example of a 3-1-2 ratio fertilizer would be a 15-5-10 or something relatively close to this. However, keep in mind that established lawns do not require additional phosphorus (the middle number) and should be avoided. Requirements for phosphorus and potassium (the third number) should always be based on a soil test. Nitrogen only fertilizers with some slow-released nitrogen (See Guaranteed Analysis on bag) can be used if phosphorus and potassium are at adequate levels. ” Citation

5- University of Nebraska – Lincoln

spring lawn npk

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6- Texas A&M University

“In the absence of soil test information, apply a fertilizer with a 3-1-2 or 2-1-1 ratio at a rate equivalent to 1 pound of nitrogen per 1,000 square feet.”  Citation

7- University of Arizona

“Fertilizer ratios recommended for turf have typically been those of 4-1-2, 3-1-2 or 2-1-2 ratios. The ratios have been determined to keep N-P-K balanced for both soil storage and plant uptake requirements. On sandy soils, it is a wise bet to use complete fertilizers that have 3-1-2 ratio at each fertilizer application. On heavier textured soils (loams or heavier soils with clay and silt) you can often just apply nitrogen on 75% of the fertilizer application dates. On the other 25% you can apply a complete fertilizer.” Citation

8- Purdue

“In mature lawns, unless a soil test indicates that the turf needs supplemental phosphorus, it is best to apply lawn maintenance fertilizers. These products contain low (such as < 3%) phos­phate levels. An example of a low-phosphate fertilizer analysis is 27-3-10 . If a soil test indicates sufficient to high phospho­rus levels, then a zero phosphorus analysis such as 27-0-10 is appropriate. Healthy, mature turf leaf tissue generally con­tains a rather consistent ratio of about 4-1-2 for N-P-K. Thus, repeated applications of general purpose fertilizers like 12-12-12 should be avoided since excess phosphorus might be ap­plied and accumulate in the soil.”  Citation

9- NC State

“Apply nutrients based on soil testing. In absence of a soil test, apply 1⁄2 pound of nitrogen per 1,000 square feet 3 weeks after greenup. Use a complete nitrogen-phosphorus, potassium (N-P-K) turf fertilizer with a 3-1-2 or 4-1-2 ratio (for example, 12-4-8 or 16-4-8). Do not apply more than 2 pounds of nitrogen a year.” Citation

10- Rutgers

“In determining which fertilizer grade one should be used when all three nutrients are needed, the suggestions outlined in Table 2 should be considered. The proper fertilizer can then be selected on the basis of the ratio which most closely resembles the recommended nutrients. Consider a recommendation which calls for four pounds of nitrogen, one pound of phosphate and two pounds of potash per 1000 sq. ft. per year (based on medium level soil test results for phosphate and potash). This gives a ratio of 4-1-2, which should be easily matched by a commercial turf fertilizer. A 20-5-10 fertilizer grade, applied at the rate of 20 pounds per 1000 sq. ft. should be divided into four or more applications per year. Some other examples which can be used as guides are given in Table 3. On small lawns where the ratio does not work out similar to a commercially available fertilizer, a fertilizer which has a similar ratio may be substituted.” Citation

11- Virginia State

“If the fertilizer analysis is 16-4-8, the fertilizer ratio is 4-1-2; similarly, a 14-7-14 analysis would have a 2-1-2 ratio. Mature lawns generally require more nitrogen than phosphorus and potassium; therefore, ratios of4-1-2 or 4-1-3 are commonly recommended.” Citation 

12- Univ of Tennessee

“Fertilizers with a 2-1-1, 4-1-2 or 3-1-2 ratio provide N, P and K in quantities closer to actual plant needs and are best suited for maintenance applications” Citation

13- Texas A&M

“DO use a 3-1-2 or 4-1-2 ratio fertilizer if you elect not to conduct a soil test. A common example of a 3-1-2 ratio fertilizer is 15-5-10,while a good 4-1-2 ratio fertilizer is 16-4-8.These ratios generally supply what most lawns need, and they won’t dramatically increase the phosphorus levels if it’s unneeded”  Citation

14- Univ Of Kentucky

“The main advantages to the specialty fertilizers are:  Normally good nutrient ratios for turf (turfgrasses often require a ratio of 4:1:2 N:P:K). Uniform and small particle size. Low burn potential. Calibration and application rate in-formation for applying to small areas printed on the bag.”  Citation


15- Univ of Vermont

“An ideal composition for a chemical lawn fertilizer is a 4-1-2 ratio of nitrogen, phosphorus, and potassium, for example 20-5-10. Many others created for lawns, that may not be this exact ratio, will work fine too. For a natural fertilizer, a 3-1-2 ratio is good, but anything close such as a 5-2-4 fertilizer works fine. Some areas where phosphorus (P, the middle number) may be carried with rain into watersheds, causing potential pollution and algae blooms, restrict P usage.”  Citation 

16- Golf Superintendent Mag

“When looking at ratios of nitrogen, phosphorus and potassium, superintendents often try to match applications with the levels in the plant. In the order of NPK, they might use ratios such as 3-1-2, 4-1-2 or 2-1-2.”  Citation 


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