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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
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Description
20-20-20 fertilizer for indoor plants 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 |
||
| 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:
- 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