All Purpose 20-20-20 is our biggest seller for home professional grower formulas. It is widely used in a variety of settings from bedding plants, vegetable gardens, fruit trees, nursery materials including, trees, shrubs and container plants. In addition, the All-Purpose 20-20-20 is used extensively in conjunction with spray materials for foliar feeding of ornamental and shade trees, turf and hay field applications in the same manner. It is an excellent material for feeding foliage plants.

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

 

When using a Siphonex or Hoze-on proportioner

1:15 setting                                E.C.

100 ppm    =    1.0 oz.                0.64

200 ppm    =    2.0 oz.               1.28

300 ppm    =    3.0 oz.               1.92

 

Limit of Solubility in Hot Water = 3.5 lbs. per gallon

 

For Best Results

 

Jack's 20-20-20 is considered the industry standard of general-purpose fertilizers by professional growers. This product work great with a combination with Jack’s Classic Blossom Booster giving your plants greener, large leaves, more flowers and brighter colors.

 

Jack's Fertilizers are made with 100% soluble raw materials that will form a true solution. 

 

For best results, use warm or hot water (180 F°) to dissolve product. Some raw materials are slower to dissolve than others. Most fertilizer compounds dissolve in an endothermic reaction, which means they absorb heat from their surroundings during the process. In strong concentrations or stock solutions (1-3+ lbs. per gallon) using cold water in a cold environment will drastically slow the dissolving process (up to 24 hours to form a true solution). In all conditions, agitation will help speed up the dissolving process by exposing more particle surface area to the water.