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If you want to create the perfect nutrient solution for your plants, give our collection of single-ingredient supplements a check. It doesn’t matter if you want to supplement your plant’s diet with nitrogen or phosphorous or you just want to target a specific nutrient in your plants with a more precise feeding schedule; Groindoor.com has it all.

You can give our nutrients and fertilizer section in our Learning Center a look to see our range of single-ingredient products. Still unsure? Call us at 866-GRO-INDR and speak to one of our experts for more info!

  • NPK RAW Amino Acids 2oz NPK RAW Amino Acids 2oz

    NPK RAW Amino Acids 2oz

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW Amino Acids are uncut, tech grade, amino acids derived from L-Glycine and L-Glutamic Acid. No fillers, no dyes. RAW...

    $19.99 $19.39
  • NPK RAW Amino Acids 8oz NPK RAW Amino Acids 8oz

    NPK RAW Amino Acids 8oz

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW Amino Acids are uncut, tech grade, amino acids derived from L-Glycine and L-Glutamic Acid. No fillers, no dyes. RAW...

    $59.99 $58.19
  • NPK RAW Amino Acids 2lb NPK RAW Amino Acids 2lb

    NPK RAW Amino Acids 2lb

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW Amino Acids are uncut, tech grade, amino acids derived from L-Glycine and L-Glutamic Acid. No fillers, no dyes. RAW...

    $179.99 $174.59
  • NPK RAW Amino Acids 10lb NPK RAW Amino Acids 10lb

    NPK RAW Amino Acids 10lb

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW Amino Acids are uncut, tech grade, amino acids derived from L-Glycine and L-Glutamic Acid. No fillers, no dyes. RAW...

    $649.99 $630.49
  • NPK RAW Amino Acids 25lb NPK RAW Amino Acids 25lb

    NPK RAW Amino Acids 25lb

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW Amino Acids are uncut, tech grade, amino acids derived from L-Glycine and L-Glutamic Acid. No fillers, no dyes. RAW...

    $999.99 $969.99
  • NPK RAW Calcium/Mag 2oz NPK RAW Calcium/Mag 2oz

    NPK RAW Calcium/Mag 2oz

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water Calcium is essential for living organisms, in particular in cell physiology, where movement of the calcium ion into and out...

    $12.85 $12.56
  • NPK RAW B-Vitamin 2oz NPK RAW B-Vitamin 2oz

    NPK RAW B-Vitamin 2oz

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW B-Vitamin can assist at any time in a plant's life where the plant may become stressed through transplanting, high...

    $16.85 $16.34
  • NPK RAW Cane Molasses 25 lb NPK RAW Cane Molasses 25 lb

    NPK RAW Cane Molasses 25 lb

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water Use of RAW Cane Molasses can enliven any feeding program! RAW Cane Molasses is derived from plants, meaning the majority of...

    $398.85 $386.88
  • NPK RAW Calcium/Mag 8oz NPK RAW Calcium/Mag 8oz

    NPK RAW Calcium/Mag 8oz

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water Calcium is essential for living organisms, in particular in cell physiology, where movement of the calcium ion into and out...

    $34.85 $33.80
  • NPK RAW Calcium/Mag 2lb

    NPK RAW Calcium/Mag 2lb

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water Calcium is essential for living organisms, in particular in cell physiology, where movement of the calcium ion into and out...

    $88.85 $86.18
  • NPK RAW Calcium/Mag 10lb NPK RAW Calcium/Mag 10lb

    NPK RAW Calcium/Mag 10lb

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water Calcium is essential for living organisms, in particular in cell physiology, where movement of the calcium ion into and out...

    $224.85 $218.10
  • NPK RAW B-Vitamin 8oz

    NPK RAW B-Vitamin 8oz

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW B-Vitamin can assist at any time in a plant's life where the plant may become stressed through transplanting, high...

    $44.85 $43.50
  • NPK RAW B-Vitamin 2lb NPK RAW B-Vitamin 2lb

    NPK RAW B-Vitamin 2lb

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW B-Vitamin can assist at any time in a plant's life where the plant may become stressed through transplanting, high...

    $124.85 $121.10
  • NPK RAW B-Vitamin 10lb NPK RAW B-Vitamin 10lb

    NPK RAW B-Vitamin 10lb

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW B-Vitamin can assist at any time in a plant's life where the plant may become stressed through transplanting, high...

    $438.85 $425.68
  • NPK RAW Silica 2oz NPK RAW Silica 2oz

    NPK RAW Silica 2oz

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW Silica supplies high levels of potassium and silicon to help plants build stronger cell walls! RAW Silica strengthens...

    $14.85 $14.40
  • NPK RAW Silica 8oz NPK RAW Silica 8oz

    NPK RAW Silica 8oz

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW Silica supplies high levels of potassium and silicon to help plants build stronger cell walls! RAW Silica strengthens...

    $38.85 $37.68
  • NPK RAW Silica 2lb

    NPK RAW Silica 2lb

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW Silica supplies high levels of potassium and silicon to help plants build stronger cell walls! RAW Silica strengthens...

    $108.85 $105.58
  • NPK RAW Silica 10lb NPK RAW Silica 10lb

    NPK RAW Silica 10lb

    NPK Industries Product Documents Individual Raw Products in Teaspoons PPM Values of RAW products in 1 Gallon of Water RAW Silica supplies high levels of potassium and silicon to help plants build stronger cell walls! RAW Silica strengthens...

    $384.85 $373.30
  • Hesi Phosphorus Plus, 1 Liter

    Hesi Phosphorus Plus, 1 Liter

    Hesi Product Documents Hesi Feeding Schedule Hesi Phosphorus PlusPlants in the flowering phase need increasing amounts of phosphorus and potassium. HESI Phosphorus- Plus adds the correct dosage at the right time.Hesi Phosphorus Plus is used in...

    $46.95 $26.26
  • Grotek Vital, 23 Liter

    Grotek Vital, 23 Liter

    Calcium is key to a plant’s success, and Grotek™ Vital™ gives growers a chance to get the level of calcium just right for their plants. As an isolated component, it is possible to dial in a precise level of calcium.The formula also has...

    $609.04 $590.77

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