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Orchid Nerd ™ 13-3-15 MSU Orchid Food, 8-Ounce (Orchid Ferlizer) for Reverse Osmosis, Rain or Tap Water Formula

  • 1499



13-3-15, was designed for a pure water source like rainwater or reverse-osmosis (RO) purified water or water that has been treated for city use such as tap water. Due to the extreme variability of well-water mineral content, the RO Water Special formula is the preferred choice for the home grower. This was formulated from the nutritional program done at Michigan State University.


  • Instantly feeds to grow bigger more beautiful plants vs unfed plants
  • Well-fed plants are healthier more productive and more beautiful.
  • Great for orchids all flowers vegetables trees shrubs and houseplants .Use on container or in ground plants.
  • Makes one gallon liquid solution at 125 ppm N. Can be used 3/4tsp per gallon dry form or 1oz stock solution per gallon.

13-3-15 8Ca-2Mg (pure water orchid formula) — The original pure water formula is a high-quality compound fertilizer that combines macronutrients secondary nutrients.This version is formulated especially for those using Rain water, Reverse Osmosis water, or similar purified, low nutrient water source. Must be mixed with water.


Guaranteed Analysis Analisis Garantizo
Nitrogen (N)…………………………...…….13%
12.5% Nitrate Nitrogen
0.7% Ammoniacal Nitrogen
Available Phosphate (P
2O5)……………..…...3%
Soluble Potassium (K
2O)……………………15%
Calcium (Ca)………………………………….8%
Magnesium (Mg)………………………..........2%
2% Water Soluble Magnesium (Mg)
Boron (B)…………………………………0.018%
Copper (Cu)...……………………………0.044%
0.044% Soluble Copper (Cu)
Iron (Fe)………………………….............0.177%
PARA MEZCLAR EL FERTILIZANTE
0.177% Chelated Iron (Fe) Cantidad para cada galon de material.
Manganese (Mn)…..…………..…...........0.088%
0.088% Soluble Manganese (Mn)
Molybdenum (Mo)….……………..…….0.018%
Zinc (Zn)..……………………………..…0.044%
0.044% Soluble Zinc (Zn)
Derived from: Boric acid, calcium nitrate, copper sulfate, iron EDTA,
magnesium nitrate, manganese sulfate, potassium nitrate,
sodium molybdate and zinc sulfate


Notice: Granular fertilizers can start to liquefy in the bag due to contact with moisture/humidity.

This will vary depending on humidity and how often the container is opened. This does not mean the fertilizer has gone bad. You can still use in liquefied state.

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