SKU: 87556241969
white plant fertilizer

white plant fertilizer Jack's Classic - All Purpose 20-20-20

Sale price$22.91 Regular price$25.45
Save 10%

Pay in installments of $6.36 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

white plant fertilizer Jack's Classic - All Purpose 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: 87556241969

Discover Niche Categories That Outsell white plant fertilizer

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 8 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amazon Customer
Waukegan, US
★★★★★ 4
Heavy.
Size: 2 Big Kid, Color: Pink/Glitter
They are beautiful, but too heavy to my kid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025
S
Verified Purchase
Shadi-Mie
Cuba, US
★★★★★ 5
Runs small
Size: 4 Big Kid, Color: Pearl Yellow
I wish they went past size 4 but cute nonetheless.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 29, 2024
A
Verified Purchase
Anny
Carnegie, US
★★★★★ 5
Compra excelente
Excelente y buen precio
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 14, 2024
G
GZ
Natrona Heights, US
★★★★★ 5
The best shoe brand I have found for toddlers! Exceptional quality
Size: 12 Little Kid, Color: Black/Beige
I have ordered a handful of shoes from Mini Melissa in the past, so I knew to size up. I typically order 1 to 3 sizes larger than what my daughter currently wears depending on the season and type of shoe. For this shoe, I ordered about 3 sizes up, so that she will be able to wear them next spring / summer and I am glad I did. They are a little large on her now, but I know we will get a lot of use out of them next summer playing in the yard, pool and beach! As with all Mini Melissa shoes, the first thing I do when I open the box is smell them - their shoes have the most pleasant scent! They make the best jelly-like quality shoes; they are absolutely worth the price for the quality and style you receive. They hold up very well - they are the only shoes that she outgrows before the shoe breaks down or looks unwearable. My daughter has worn many of their styles, and has never gotten a blister or complained about the comfort. They are supportive, but flexible and even as young as she is, she gets so excited for cute shoes! I ordered the beige and black for something neutral we can wear with many different outfits and that won't show dirt on the sole. The color is exactly as pictured. I really appreciate that top straps are functional and adjustable. She has a bit of a wider foot, so this allows us to get even more use out of them. I am very glad I ordered these and will continue to tell my friends about what I find to be the best shoe brand for toddlers and kids!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 10, 2025
L
Verified Purchase
Linda Cassidy
San Leandro, US
★★★★★ 3
Summer Slides
Size: 1 Big Kid, Color: Lilac/Glitter
-Slide is sturdy and well made; -Color is very attractive and true to size; -My Granddaughter loves them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2024

recommand products