SKU: 58505310744
jack's plant fertilizer

jack's plant fertilizer Jack's Classic 20-20-20

Sale price$22.82 Regular price$25.35
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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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Description

jack's plant fertilizer 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: 58505310744

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Lucky Writer 777
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★★★★★ 4
It does crack, but it’s sturdy. Weird…
We receive the product about a week ago. It was installed on the wall today. We just noticed there is a crack on it. Upon pushing the two sides together, the sides did not budge. It’s sturdy, but has a crack. Look, it’s not a big deal to me. The crack is the reason I rated this product a four star. The crack is part of the character of the product. The plastic piece, that holds the blade, moves a lot. I have to make an effort to hold the wax paper firmly on the top corner. Again, not an issue since the alternative typically causes me to have an uneven cut. At least this cuts straight across with no issues. That said, we knew going into it that this product may not fit in our drawers. The wood part is perfect, fits great. But, the blades (the black plastic sliding part) did not fit and our drawers could not close. We knew this because we measured. DEFINITELY MEASURE AHEAD OF TIME. There are multiple sizes to these products and some are deeper than others.
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Reviewed in the United States on April 3, 2022
J
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Jessica I
West Palm Beach, US
★★★★★ 5
GREAT SPACE SAVER
If you are person that hates clutter then this is worth every penny! I was so sick of the boxes getting crushed/damaged from handling them over and over. The quality of the box is strong and durable. Perfect size to fit in a kitchen drawer. It’s so easy to use and looks great! The stickers allow for a variety of functionality. I was able to organize the rolls the way that I wanted and then add the stickers to the box. Love this product!!
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Reviewed in the United States on October 20, 2024
B
Verified Purchase
brenda creighton
Port Orchard, US
★★★★★ 5
Fell apart in less than 2 years
I bought this item to organize my foil & other types of wraps and in less than 2 years it fell apart. Very disappointed considering the cost of it. Will never buy again, nor will I recommend it to anyone
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Reviewed in the United States on February 13, 2024
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Verified Purchase
Sandra Merwin
Houston, US
★★★★★ 3
Paper organizer and cutter
As described and works pretty well. Sometimes has issues and have to move the product around to get the cutter in the correct position. Only complaint is does not fit all the parchment and different paper widths.
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Reviewed in the United States on December 19, 2025
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Jennifer Rooth
Charlottesville, US
★★★★★ 5
Only opens on right side
Love the product, but didn't realize it only opened on one side. I had planned on placing it in a tight corner until I realized I wouldn't be able to insert contents without taking back off the wall. I relocated, and so far so good. It looks great and has helped reduce my cupboard clutter.
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Reviewed in the United States on March 28, 2022

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