SKU: 39542362064
water soluble indoor plant fertilizer

water soluble indoor plant fertilizer Jack's Classic - All Purpose 20-20-20

Sale price$20.44 Regular price$22.71
Save 10%

Pay in installments of $5.68 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

water soluble indoor 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: 39542362064

Discover Niche Categories That Outsell water soluble indoor plant fertilizer

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 23 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
F
Verified Purchase
Family Man
Birmingham, US
★★★★★ 3
Nice shirt, but sizing isn’t ideal for big and tall builds
Size: XX-Large Tall, Color: Black
The shirt itself is decent quality and looks good, but the fit wasn’t great for me. If you’re a big and tall guy, this may not be the best option. The material has some stretch and feels comfortable, but the overall cut runs smaller and doesn’t offer much room in the shoulders or torso. It works better for slimmer or more standard builds. If the sizing works for you, it’s a nice-looking shirt. Just be aware that it’s not very forgiving in the fit if you need extra room.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2025
R
Verified Purchase
robert romero
San Leandro, US
★★★★★ 5
⭐⭐⭐⭐⭐ Durable Protection That Holds Up in Any Weather
Size: 65 inch, Color: Black
This grill cover is exactly what I needed. The material feels thick and heavy-duty, and it holds up great against sun, wind, and rain. The waterproof design really works—my grill stays completely dry. I also love the secure fit with the hook-and-loop straps; it doesn’t blow off in strong winds. No fading so far either. Great quality and a solid investment to protect your grill!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
D
Verified Purchase
Diane Beach Lover
Lexington, US
★★★★★ 5
Good quality, great price
Size: 72 Inch, Color: Black, Size: 72 Inch, Color: Black
Lovely cover and very well-made. I’m not using it for a grill. I am using it for my beach cruiser bike. I love the fact that it’s reflective fabric on the inside. It fits very well and it’s very lightweight and well maneuverable compared to the thicker fabrics that are sold out there. I highly recommend this item. I’ve only had it for a couple weeks, but so far very waterproof and doing the job. Easy to put on and remove.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
I
Verified Purchase
IM
Carnegie, US
★★★★★ 4
Good quality, water resistant
Size: 52 inch, Color: Black
Feels thinner than the one I had before this which was the same company and model. Still good quality and value for the money. Fits well and looks good. Is water resistant and black is the true color. We’ll see how sturdy it is over the years.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
T
Verified Purchase
Terra Ternes
Massapequa, US
★★★★★ 5
Good cover for the price
Size: 58 inch, Color: Black
I’m very happy with this grill cover so far. It fit my grill really well without being too tight or loose. The material feels sturdy and weather-resistant, and it seems like it will hold up well over time. It was easy to put on and gives good coverage and protection. Definitely worth the purchase
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026

recommand products