Jack's Professional 20-5-19 Poinsettia LX Water Soluble Fertilizer, 25 lbs.

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Management number 232558206 Release Date 2026/06/21 List Price $18.87 Model Number 232558206
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Use this LX formula for the production of quality poinsettias. This blend was designed from the lab testing of many of the newest cultivars of poinsettias. It maintains solubility in concentration with elevated nitrate nitrogen, zinc and molybdenum as well as a balanced essential micronutrient package. Can be tank mixed with all the Jack's LX formulas.

For Use On: Light and Dark Leaved poinsettia varieties. A potentially acidic formula that will lower media pH over time.


Jacks Professional 20-5-19 Poinsettia LX Water Soluble Fertilizer Guaranteed Analysis

  • Total Nitrogen (N)......20%
    • 7.44% Ammoniacal Nitrogen
    • 12.56% Nitrate Nitrogen
  • Available Phosphate (P205).......5%
  • Soluble Potash (K2O).......19%
  • Magnesium (Mg).......0.6%
    • 0.6% Water Solulble Magnesium (Mg)
  • Boron (B).......0.01%
  • Copper (Cu)........0.01%
    • 0.01% Chelated Copper (Cu)
  • Iron (Fe)........0.1%
    • 0.1% Chelated Iron (Fe)
  • Manganese (Mn)........0.05%
    • 0.05% Chelated Manganese (Mn)
  • Molybdenum (Mo).......0.1%
  • Zinc (Zn).......0.06%
    • 0.06% Chelated Zinc

Derived From: Ammonium Nitrate, Monopotassium Phosphate, Potassium Nitrate, Magnesium Sulfate, Magnesium Nitrate, Boric Acid, Iron EDTA, Manganese EDTA, Zinc EDTA, Copper EDTA, Ammonium Molybdate

Potential acidity: 379 lb. Calcium carbonate equivalent per ton.

ATTENTION: The application of fertilizer material containing Molybdenum (Mo) may result in forage crops containing levels of Molybdenum (Mo) which are toxic to ruminant animals


Elemental Concentraion

100 ppm N Solution Contains the Following Elemental ppm
Nitrate - N (NO3) 62.8
Ammonium - N (NH4) 37.2
Urea - N (Urea) 0.0
Phosphorus (P) 10.9
Potassium (K) 78.9
Calcium (Ca) 0.0
Magnesium (Mg) 3.0
Boron (B) 0.05
Copper (Cu) 0.05
Iron (Fe) 0.5
Manganese (Mn) 0.25
Molybdenum (Mo) 0.5
Zinc (Zn) 0.3

Mixing Instructions
Chart displays the amount of dry fertilizer (oz.) to add to each gallon of water to make a concentrated solution. Please check your injector setting before use.

Mixing Table

Desired N Feed Rate 1:15 1:100 1:200 E.C. Value
50 ppm 0.50 3.38 6.75 0.32
100 ppm 1.00 6.75 13.50 0.64
200 ppm 2.00 13.50 27.00 1.28

Limit of Solubility = 4 lbs per gallon

Important Notes:
E.C. value is the best method to determine fertilizer strength. Fertilizer appearance may vary in color due to variation in raw material size and tracer dye distribution upon the particles in the bag. In solution, color will remain consistent.

For best results, use warm water to dissolve product. Jack's fertilizers are made with 100% soluble raw materials that will form a true solution. Some raw materials are slower to dissolve than others. Keep stock tank covered to reduce light and debris inputs.


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