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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!

    • Down To Earth Bone Meal, 50 lb. Down To Earth Bone Meal, 50 lb.

      Down To Earth Bone Meal, 50 lb.

      Down To Earth Product Documents Down to Earth Bone Meal Guide Down to Earth Bone Meal OMRI Certification Down to Earth Bone Meal Safety Data Sheet Down to Earth Product Brochure A wonderful source of Phosphorus and Calcium for flowering plants, trees...

      $75.87 $59.63
    • Down To Earth Bone Meal, 25 lb. Down To Earth Bone Meal, 25 lb.

      Down To Earth Bone Meal, 25 lb.

      Down To Earth Product Documents Down to Earth Bone Meal Guide Down to Earth Bone Meal OMRI Certification Down to Earth Bone Meal Safety Data Sheet Down to Earth Product Brochure A wonderful source of Phosphorus and Calcium for flowering plants, trees...

      $48.24 $34.75
    • Down To Earth Bone Meal, 5 lb. Down To Earth Bone Meal, 5 lb.

      Down To Earth Bone Meal, 5 lb.

      Down To Earth Product Documents Down to Earth Bone Meal Guide Down to Earth Bone Meal OMRI Certification Down to Earth Bone Meal Safety Data Sheet Down to Earth Product Brochure A wonderful source of Phosphorus and Calcium for flowering plants, trees...

      $16.22 $11.68
    • Gaia Green Super Fly Insect Frass Gaia Green Super Fly Insect Frass

      Gaia Green Super Fly Insect Frass

      GAIA GREEN Super Fly Insect Frass is a fertilizer derived from the excreta of black soldier fly larvae. It is a renewable resource produced from pre-consumer food waste fed to fly larvae. Though new to growers, this digested material has played a...

      $17.95
    • 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 Amino Acids...

      $19.99 $14.98
    • 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 Amino Acids...

      $59.99 $40.13
    • 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 Amino Acids...

      $179.99 $120.38
    • 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 Amino Acids...

      $649.99 $434.69
    • 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 Amino Acids...

      $999.99 $735.63
    • 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 of the...

      $12.85 $9.95
    • 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 salinity,...

      $16.85 $11.95
    • 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 the...

      $398.85 $266.72
    • 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 of the...

      $34.85 $21.95
    • 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 of the...

      $88.85 $53.47
    • 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 of the...

      $224.85 $149.80
    • 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 salinity,...

      $44.85 $27.95
    • 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 salinity,...

      $124.85 $75.14
    • 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 salinity,...

      $438.85 $292.91
    • 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 both the...

      $14.85 $12.87
    • 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 both the...

      $38.85 $28.15
    • 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 both the...

      $108.85 $78.87
    • 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 both the...

      $384.85 $256.80

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