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Supplements & Additives

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  • Microbial Supplements (1) item
  • Silicas (2) items
  • Bloom Enhancers (11) items
  • Flushing Agents (7) items
  • Full Cycle Enhancers (7) items
  1. Advanced Nutrients (59) items
  2. Aptus (13) items
  3. Athena (13) items
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  5. BioAg (10) items
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  13. Dyna-Gro (5) items
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  17. GreenGro (11) items
  18. Grotek (6) items
  19. Grow More (13) items
  20. Heavy 16 (15) items
  21. House & Garden (44) items
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  23. Mad Farmer (26) items
  24. Microbe Life (8) items
  25. Mills Nutrients (6) items
  26. Nectar For The Gods (40) items
  27. New Millenium (5) items
  28. Roots Organics (32) items
  29. SLF-100 (0) items
  30. Soul (7) items
  31. Super Natural (6) items
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28 Items

  • HEAVY 16 Foliar, 6 gal
    HEAVY 16 Foliar, 6 gal
    Special Price $428.80 Regular Price $734.99
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  • HEAVY 16 Foliar, 8 oz
    HEAVY 16 Foliar, 8 oz
    Special Price $12.10 Regular Price $17.99
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  • Heavy 16 Finish 10L
    Heavy 16 Finish 10L
    Special Price $114.11 Regular Price $169.99
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  • Image of HEAVY 16 Fire, 6 gal
    HEAVY 16 Fire, 6 gal
    Special Price $1,183.95 Regular Price $2,099.99
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  • HEAVY 16 Fire, 55 gal
    HEAVY 16 Fire, 55 gal
    Special Price $6,840.00 Regular Price $11,969.99
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  • Family Group Image of Heavy Finish
    Heavy Finish
    The price depends on the options chosen on the product page
    From $51.26
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  • Family Group Image of Heavy Fire
    Heavy Fire
    The price depends on the options chosen on the product page
    From $106.20
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  • Family Group Image of Heavy Foliar
    Heavy Foliar
    The price depends on the options chosen on the product page
    From $123.09
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  • Family Group Image of Heavy Prime
    Heavy Prime
    The price depends on the options chosen on the product page
    From $178.20
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  • Family Group Image of Mills Nutrients C4
    Mills Nutrients C4
    The price depends on the options chosen on the product page
    From $58.28
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  • Family Group Image of Mills Nutrients Ultimate PK
    Mills Nutrients Ultimate PK
    The price depends on the options chosen on the product page
    From $49.28
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  • Family Group Image of Mills Nutrients Vitalize
    Mills Nutrients Vitalize
    The price depends on the options chosen on the product page
    From $112.05
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  • Family Group Image of SLF-100
    SLF-100
    The price depends on the options chosen on the product page
    From $119.75
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  • Image of BioSafe TerraGrow, 5 lb
    BioSafe TerraGrow, 5 lb
    Special Price $125.69 Regular Price $186.00
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  • Image of Heavy 16 Prime 10L
    Heavy 16 Prime 10L
    Special Price $387.68 Regular Price $671.99
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  • Heavy 16 Foliar 10L
    Heavy 16 Foliar 10L
    Special Price $245.47 Regular Price $398.99
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  • Heavy 16 Prime 4L
    Heavy 16 Prime 4L
    Special Price $178.20 Regular Price $300.29
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  • Heavy 16 Fire 4L
    Heavy 16 Fire 4L
    Special Price $287.33 Regular Price $514.49
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  • Heavy 16 Finish 4L
    Heavy 16 Finish 4L
    Special Price $51.26 Regular Price $78.74
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  • Heavy 16 Fire 1L
    Heavy 16 Fire 1L
    Special Price $106.20 Regular Price $178.49
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  • Image of Humboldt County's Own Sonic Bloom, 50 lbs
    Humboldt County's Own Sonic Bloom, 50 lbs
    Special Price $772.50 Regular Price $984.99
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  • Snowstorm Ultra, 15 gal
    Snowstorm Ultra, 15 gal
    Special Price $1,096.65 Regular Price $1,602.99
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  • Image of Mills Nutrients C4, 1 Liter
    Mills Nutrients C4, 1 Liter
    Special Price $58.28 Regular Price $89.99
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  • Image of Mills Nutrients Ultimate PK, 1 Liter
    Mills Nutrients Ultimate PK, 1 Liter
    Special Price $49.28 Regular Price $74.99
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  • Image of Mills Nutrients Vitalize, 500ml
    Mills Nutrients Vitalize, 500ml
    Special Price $112.05 Regular Price $200.00
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  • Image of SLF-100 275 Gallon
    SLF-100 275 Gallon
    Special Price $15,079.17 Regular Price $22,440.00
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  • Image of SLF-100 Quart
    SLF-100 Quart
    Special Price $31.95 Regular Price $37.79
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  • Image of SLF-100 15 Gallon
    SLF-100 15 Gallon
    Special Price $1,129.24 Regular Price $1,435.14
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