SKU: 24200444249
low nitrogen plant fertilizer

low nitrogen plant fertilizer 0-20-20 FERTILIZER 50 lbs – Arnall Grocery

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Description

low nitrogen plant fertilizer 0-20-20 FERTILIZER 50 lbs – Arnall Grocery50 Lb. 0 20 20 Fertilizer What is 0 20 20 Fertilizer? 0 20 20 fertilizer is a mixture that contains zero nitrogen. The three numbers are called N P K numbers and represent nitrogen (N), phosphorous (P), and potassium (K). These are the three fundamental nutrients used by plants, and the rest of the fertilizer blend is made up of filler material. Each number stands for the percentage of nitrogen, phosphorous, or potassium (actually, it's potash, which

50 Lb. 0-20-20 Fertilizer

What is 0-20-20 Fertilizer?

0-20-20 fertilizer is a mixture that contains zero nitrogen. The three numbers are called N-P-K numbers and represent nitrogen (N), phosphorous (P), and potassium (K).

These are the three fundamental nutrients used by plants, and the rest of the fertilizer blend is made up of filler material.

Each number stands for the percentage of nitrogen, phosphorous, or potassium (actually, it's potash, which contains potassium) within the mix. So a bag of 0-20-20 fertilizer is made up of:

  • 0% Nitrogen
  • 20% Phosphorous
  • 20% Potash
  • 60% Filler

Obviously plants need to derive nitrogen from the soil, so why would we use a zero nitrogen fertilizer at all?

Why Use 0-20-20 Fertilizer?

Almost every other type of fertilizer will contain some percentage of nitrogen (the first number). Even in cases where people are avoiding nitrogen, they'll still opt for something like a 6-24-24 fertilizer to replenish nitrogen some. And that's part of the key to the mystery.

The reason people seek out or mix their own 0-20-20 blend is because they intend to fertilize their gardens or lawns during the late fall. They consider this special recipe to be a winterizing fertilizer.

You'll even find high-phosphorous and high-potassium fertilizers marketed and sold as "winterizers."

There's two reasons for this:

  1. Plants use little to no nitrogen during the winter.
  2. Rain and snow will leach nitrogen away from the soil during this time.

The first reason is easy to understand. Plants consume little to zero nitrogen during these dormant months. Why this happens is a biological subject for another discussion, but it is true.

The second reason has to do with the process of leaching, where water can run through soil (the looser and sandier the soil, the worse it is) and wash away the nitrogen stored there.

This leads us to the obvious conclusion: why waste money and resources adding nitrogen to soil where it won't be used and will be leached away? The answer is we shouldn't. It's a complete waste!

However, stating the conclusion that simply makes it sound like theres not a few more details to consider. There are such things as organic fertilizers that contain slow-release nitrogen.

And when this is done to thicker, more clayish soil, it makes nitrogen available immediately when spring comes and plants start growing their roots and tops again. It may not be much, but it's better than zero.

Or, you can fertilize the soil at the end of the winter season and be in even better shape, which is what I recommend if you have the time to plan for it and execute the plan.

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SKU: 24200444249

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Steve
New York, US
★★★★★ 5
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This is a great lightweight and portable edger. It’s much easier to use than a gasoline powered model. The only limiting factor is the length of the electric cord. It does a great job and make sure your driveways and sidewalk look manicured.
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Reviewed in the United States on January 6, 2026
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Lindybid
Alexandria, US
★★★★★ 5
Awesome edger
This is our second purchase of this product. We had the first one for over ten years and we ended up breaking it(our fault). Immediately bought same one. This is a reliable machine. It goes right through thick weeds and rock hard dirt to edge a lawn or trench. Like I said our previous one lasted ten years and worked just as well in year ten never replaced the blade once. This one came with a back up blade as well which is a bonus. Highly recommend this. Easy to assemble. Takes five minutes. Durable. Powerful. There is hieght adjustment as well. Well worth the price!
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Reviewed in the United States on July 12, 2024
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linda k. bennett
Lake Worth, US
★★★★★ 5
edger
given as gift but I liked the weight and ease of handling. Seemed well made and simple to use. I was pleased with size and features.
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Reviewed in the United States on January 1, 2026
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Movie Fan
Massapequa, US
★★★★★ 3
Nice Edger as long as the blade doesn't come loose -- and it will come loose, repeatedly!
Probably could've/should've rated this 2 stars yet it works well when it works. I purchased this edger to edge my drive and sidewalks and not for trenching. The edger arrived very quickly after I ordered it (I am not a Prime member so this was a nice surprise). Assembly was easy and straight-forward. The first use went smoothly and the edger performed flawlessly and provided clean, smooth edging. About 20 minutes into the second use I noticed that the edger was cutting and quickly determined that the blade was spinning freely -- fortunately the hex nut was still attached to the threaded shaft. I reviewed the manual that came with the edger, grabbed the correct sized socket and torque wrench. I removed the hex nut, the first washer, the blade and then the second washer. To install I followed the directions ensuring that the flats of the washer aligned with the flat on the shaft and tightened the hex nut to the specified 140 in-lbs. The edger worked well for about 10 minutes and the blade once again became loose. This time I replaced the original blade (which did not need to be replaced from a wear perspective) with a new B&D blade and new washers. Once again I followed the instructions and this time the edger performed flawlessly until about 5 minutes remaining in my edging when once again the blade came loose. my experience has most certainly been frustrating to say the least. one should not need to carry a socket and torque wrench with them and repeatedly need to tighten the blade. So, when the edger performs as intended it does an excellent job at edging; however I have no confidence that this edger will be able to perform as intended throughout repeated uses and more importantly has shown that it cannot complete my edging without requiring tightening the blade (which requires disassembly down to the second keyed washer). Potential buyers should be prepared for this experience and make your decision accordingly. Note: I tried contacting black and decker via twitter (@blackdeckerhome) and never received a response; I could not find a separate customer service/support twitter account. Trying to contact customer service via the phone these days is an exercise in patience to say the least.
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Reviewed in the United States on November 11, 2022
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Robert S.
Houston, US
★★★★★ 5
Trimmer results
Was alittle hesitant with this being B&D But I was surprised how great it really is. By far way above my expectations. Works like a charm and does a great job. Chose electric because I really don't have other than a driveway to do. But it really did good around the flower beds. Cord limits you alittle but nothing to cry about. Quiet also but still use ear plugs.
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Reviewed in the United States on May 9, 2026

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