SKU: 84079912241
soluble plant fertilizer

soluble plant fertilizer Jack's Classic Water-Soluble 20-20-20 Fertilizer – Greenhouse Megastore

Sale price$25.43 Regular price$28.26
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Description

soluble plant fertilizer Jack's Classic Water-Soluble 20-20-20 Fertilizer – Greenhouse MegastoreWith Jack's 20 20 20, you can improve growth in almost any situation any plant, any stage, any weather. This all purpose fertilizer has a 1: 1: 1 NPK ratio with 20% each of nitrogen, phosphate and potash plus trace nutrients such as iron and manganese to promote larger, greener growth. Use it from the start or to "green up" existing plants. The water soluble formula makes mixing it easy for liquid feed either directly to the roots or on the leaves.

With Jack's 20-20-20, you can improve growth in almost any situation - any plant, any stage, any weather. This all-purpose fertilizer has a 1:1:1 NPK ratio with 20% each of nitrogen, phosphate and potash plus trace nutrients such as iron and manganese to promote larger, greener growth. Use it from the start or to "green up" existing plants. The water-soluble formula makes mixing it easy for liquid feed either directly to the roots or on the leaves.

From bedding plants and perennials to fruits, vegetables, trees and turfgrass, Jack's Classic 20-20-20 Fertilizer is the right feed. Though you can use Jack's fertilizer in an array of conditions, warmer temperatures are recommended so plants can make better use of the nitrogen. The manufacturer also suggests alternating with a fertilizer lower in phosphorus to prevent plant stretch over extended periods.

Jack's All-Purpose Fertilizer Features:

  • Versatile 1:1:1 NPK ratio.
  • Easily dissolves in water for spraying and fertigation.
  • Ideal for warmer weather and indoor plants.
  • Sold in four-pound tubs (single or case of six).

How to Use

For small volume mixing
Dissolve the following amounts in 1 gallon of water. An injector should not be used.
1/2 tsp. = 125 ppm
1 tsp. = 250 ppm
1 tbsp. = 750 ppm

Stock Solution

To make a STOCK concentrated solution for use with a fertilizer proportioner. Dissolve the following amounts of fertilizer per 1 gallon of stock water.

Stock Solution 100 ppm 200 ppm 300 ppm
1:100 (1%) setting 6.8 oz. 13.5 oz. 20.3 oz.
E.C. 0.42 0.84 1.2
1:200 (0.5%) setting 13.5 oz. 27 oz. 40.5 oz.
E.C. 0.42 0.84 1.2
1:15 setting* 1 oz. 2 oz. 3 oz.
E.C. 0.42 0.84 1.2
*When using a Siphonex or Hoze-on proportioner

Limit of Solubility in Hot Water = 3.5 lbs. per gallon.


Additional Information

Jack's All-Purpose MSDS (PDF)


Specifications

Total Nitrogen (N)....................................... 20%

2.1% Nitrate Nitrogen
17.9% Urea Nitrogen

Available Phosphate (P2O5)....................... 20%
Soluble Potash (K2O)................................. 20%
Boron (B).................................................... 0.02%
Copper (Cu)................................................ 0.05%
0.05% Chelated Copper (Cu)
Iron (Fe)...................................................... 0.1%
0.1% Chelated Iron (Fe)
Manganese (Mn)......................................... 0.05%
0.05% Chelated Manganese (Mn)
Molybdenum (Mo)....................................... 0.0009%
Zinc (Zn)...................................................... 0.05%
0.05% Chelated Zinc (Zn)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 84079912241

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Gerri
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★★★★★ 5
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Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
An instant favorite! It took quite a while for my dog to break the squeaker, too. I love that it uses a water bottle for the crinkle sound, and I'm kind of glad the squeaker finally bit the dust. That works out well for us. It's tough enough that it's not ripped yet. Our dog plays with this toy every day. No fluff to pull out was definitely a plus for me. It's a great toy for the price, and I think small and larger dogs would also enjoy it. Johan is 7 months old, weighs about 40 pounds, and always chooses a favorite toy. This one replaced a worn out toy frog that was smaller, but still treasured. I was so glad that he loves this one just as much. It's a little bit longer than a regular-sized water bottle and has dangly legs. I think you could also put plastic that crinkles inside it, and they would love that too. It has a velcro closure to keep whatever you put in there inside, and he hasn't figured out how to open it so far. Update: We just bought a second one of these because he enjoyed the first one to its conclusion. It lasted longer than most toys (about 4 months with HARD use by a giant puppy), and it is his most favorite soft toy. The original didn't rip or tear, but the velcro got worn out when he figured out how to open it. I probably could have fixed it easily, but since Johan is the goodest boy, I got him a new one.
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Reviewed in the United States on January 2, 2026
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Joan's RV Life
Belleville, US
★★★★★ 5
Best Toy Ever! 🐾
Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
Hey, it’s me, your dog! 🐶 This Frog toy is AMAZING! No stuffing to pull out (finally), so I can chew and squeak it all I want without making a mess. The squeaker is SO satisfying, I carry it everywhere. It’s the perfect size for playing tug-of-war and fetch with my human. I’ve had it for a while now, and it’s still holding up strong—no rips or tears yet! If you love squeaky toys and want something that lasts, this frog is paws-itively the best! 🐸
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Reviewed in the United States on December 6, 2024
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Angelique Howe
Charlottesville, US
★★★★★ 4
Dog toy
Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
My dogs have destroyed this toy. Squeaker gone in a day and is ripped open. It was a great little toy just not for use with heavy chewers
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Reviewed in the United States on July 5, 2021
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TRP
Bozeman, US
★★★★★ 5
My dog loves this
Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
Easy to insert bottles into and easy to toss. My dog loves that it both squeaks and crunches. One of his new favorite toys.
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Reviewed in the United States on January 27, 2026
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Lisa Jones
Carnegie, US
★★★★★ 3
Not durable for a large breed
Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG, Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
I received this toy about 2hrs ago. My dog tore a hole in it already. Not made for Rottweiler/American Bulldog breed, apparently. 🙂 Love that there isn't stuffing though, at least she's not making a mess, lol!
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Reviewed in the United States on March 22, 2025

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