SKU: 13381466808
jack's house plant fertilizer

jack's house plant fertilizer Jack's Classic Water-Soluble 20-20-20 Fertilizer – Greenhouse Megastore

Sale price$23.19 Regular price$25.77
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Description

jack's house plant fertilizer Jack's Classic Water-Soluble 20-20-20 Fertilizer – Greenhouse MegastoreWith 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:
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  • 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: 13381466808

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Robert
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Reviewed in the United States on December 20, 2025
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Reviewed in the United States on December 31, 2025
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Technical Gaming Editor with a toddler!
Houston, US
★★★★★ 5
Surprisingly sturdy at 3¢ each, better than expected for a large 1,000-count bulk spoon box 🥄📦
📝 Summary For about 3 cents per spoon, I expected these to be extremely flimsy. They are still disposable plastic spoons, but they are stronger than I expected and a very solid value for a 1,000-count box. ✅ Pros    • Very low cost per spoon.    • Stiffer than many bargain disposable spoons.    • Reinforced shape helps the handle resist bending.    • Useful for parties, lunches, quick meals, and everyday convenience.    • Serious value for the money if you use disposable utensils often. ⚠️ Cons    • Not as sturdy as metal utensils or thick premium plastic spoons.    • Still disposable, so the waste tradeoff is worth thinking about.    • Hard frozen foods may still need a little care. 🥄 Review At this price per spoon, I expected these to feel like the cheapest, flimsiest spoons possible. They actually surprised me. The design helps a lot. The handle has a shaped, reinforced feel, and the spoon does not bend as easily as many low-cost disposable spoons I have used. It is not metal-spoon sturdy, and it is not the same as a thick premium plastic spoon, but it is definitely better than I expected for the price. For normal meals, snacks, lunches, parties, and quick cleanups, these are completely practical. They could even handle softer ice cream with a little effort, which is more than I can say for some thin disposable spoons that fold almost immediately. The main selling point is the value. A 1,000-count box at this price makes sense if you want disposable spoons around the house or for gatherings. There is still the environmental side to consider, but from a convenience and cost standpoint, these are a strong buy. 💡 Quick tips    • Good for parties, lunch bags, office kitchens, crafts, and pet-food scooping.    • Keep some in a car, picnic bin, pantry, or emergency kit.    • For hard ice cream, let it soften slightly first. 🧑‍🍳 My take I bought these expecting very basic spoons, but they are better than that. They are not fancy, but they are sturdy enough, useful, and priced very well for how many you get. I would buy them again.
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Reviewed in the United States on May 27, 2026
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Steven L. Mckee
San Leandro, US
★★★★★ 5
Exactly why I expected
I ordered the Amazon Basics disposable white spoons primarily for the office. We have veteran events to inform and educate about veterans benefits. Funding is limited, so I try to save money where possible and these spoons were a great value! They come out to less than 3 cents each and they will last over a year. They are the same quality and feel of the plastic spoons we previously bought at the local grocery store, but due to the larger quantity it is a much better value. I decided to break the big box down into gallon zip lock bags, which made storage easier in my case. This also allowed them to be easier transported and to track usage better. We previously would buy just enough for each event, but that was a hassle with the higher costs and the trips to the grocery store. They are sturdy and hold up to use in thick dips. I would recommend these for anyone trying to save som money and spend less trips to the grocery store.
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Reviewed in the United States on May 29, 2026
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TwinMama0911
Draper, US
★★★★★ 5
Great Bulk Pack of Disposable Spoons for Everyday Use
The Amazon Basics Disposable Everyday White Spoons are a very practical and affordable option for parties, offices, events, break rooms, or everyday household use. The large 1000-count pack is especially convenient because it lasts a long time and helps reduce the need for constant restocking. The spoons are lightweight but still sturdy enough for most everyday foods like cereal, yogurt, desserts, soups, and side dishes. They don’t feel overly flimsy for normal use, which is important for disposable utensils. I also like the clean white design because it works well for casual gatherings, parties, school events, picnics, and office lunches. Having such a large quantity on hand is very helpful for busy households or larger events. The spoons are individually easy to grab and separate from the bulk packaging, making storage and use simple and convenient. Overall, this is a reliable and cost-effective bulk pack of disposable spoons that works well for everyday meals, gatherings, and large events.
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Reviewed in the United States on May 28, 2026

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