SKU: 22329497738
20 20 plant fertilizer

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

Sale price$20.01 Regular price$22.23
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

20 20 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: 22329497738

Discover Niche Categories That Outsell 20 20 plant fertilizer

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 2282 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Kindle Customer
Fort Morgan, US
★★★★★ 1
Poor quality
Size: Large, Color: White Stripe
See through, thin, and rough feeling. Not anything like the material the Amazon brand t-shirts are made of.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2023
G
Verified Purchase
Grace Bubulka
Cuba, US
★★★★★ 1
Flimsy and poor quality
Size: Large, Color: White Stripe
Flimsy and poor quality. Stripes do not line up at seams...sorry😧
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 22, 2021
P
Verified Purchase
Prime Shopper
Phoenix, US
★★★★★ 1
Garbage
Size: Small, Color: White Stripe
Fabric made about 5 tiny holes after wearing twice. Surprised, as I usually do not have a problem with Amazon Basics clothing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2024
M
Verified Purchase
Mimi
Alexandria, US
★★★★★ 5
Comfortable
Size: Medium, Color: Mini Leopard, Size: Medium, Color: Mini Leopard
Great blouse. I’m 5’4, 120 pounds and got medium size. It hides my imperfections and it’s very comfortable. I live in a hot weather area and this blouse is breathable and makes me feel fresh. I washed by hand, put in a hanger to dry and didn’t need to iron. I think I could have gotten the small size, but I don’t like tight clothes. This was just perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
S
Verified Purchase
Shivana
Houston, US
★★★★★ 4
Good product
Size: Medium, Color: Bright Pink
Very comfortable especially if you're looking for a loose fit, good quality material.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026

recommand products