SKU: 34304850047
jack's fertilizer for plants

jack's fertilizer for plants Jack's Classic 20-20-20

Sale price$24.40 Regular price$27.11
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Ships within 48 hours · Estimated delivery Nov 10 - Nov 15

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Description

jack's fertilizer for plants Jack's Classic 20-20-20With 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:
  1. Standard Shipping : 3-10 business days
  • 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: 34304850047

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felicia akers
San Leandro, US
★★★★★ 3
Not for extremely aggressive chewers
Color: Auburn
I am sure this product is excellent for a small.puppy. I have a 8month huge German Shepard husky mix he had the arms and legs in shreds in less then 15 min and working on the body. If you have a large to extra large aggressive chewer this toy won't work for your dog. Other dogs yes 5 stars
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Reviewed in the United States on May 5, 2026
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ErikaG
Charlottesville, US
★★★★★ 5
Immediate yes, worth it!
Color: Auburn
My dog LOVES this toy. There’s ropes, different noises, tough canvas, this toy has it all! So so durable which is rare for dog toys. Super cute neutral colored toy for esthetics. Great size for tug of war or for my dog toys whip around, her personal favorite!
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Reviewed in the United States on May 4, 2026
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M Donis
Whiting, US
★★★★★ 4
Pups love this toy!
Color: Auburn
This is a great toy. I have two pups under the age of 2, a goldador (half lab/golden) and a full golden. Both are very aggressive when they play and love to chew. This is not a chew toy so if left as a chew, it will be chewed and destroyed. But my two play tug together with this toy and love playing tug with this toy. I give this a 4 star rating because it has been destroyed, basically because I left it down to long and one of them starting to chew it. I am planning to purchase another and another and another. :)
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Reviewed in the United States on November 16, 2023
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Suz
San Leandro, US
★★★★★ 5
Puppy toy
Color: Pink "Tie Me In Knots" Shoe, Size: Small
Cute and small, perfect for a tiny puppy.
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Reviewed in the United States on April 18, 2026
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Victoria Smith
Lake Worth, US
★★★★★ 5
Cute gift for a dog!
Stylish!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026

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