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We value you and your privacy, so Email us with your order interest and we will get an invoice to you with an easy payment option. 


Bulk quantity available. MOQ applies.

Contact us today for pricing.


Transplant your 1.5” Grow Cubes into this block to give the roots the extra space they need. For shorter rotation crops this may be a large enough media to fulfill your growing needs; or transplant onto our Grow Slab for the remainder of the growth cycle. Blocks have a 1.5” diameter hole on the top and channels along the bottom to increase air flow.

  • 4” x 4” x 2.5” Grow Block
  • Made with Industrial Hemp
  • 100% Biodegradable & Compostable (With the Exception of the Sleeve)
  • pH Neutral
  • Hemp Fibers hold 1050% their weight in water
  • Sustainable alternative to Rockwool, Peat Moss, or Coconut
  • Carbon Capturing

4″ Natural Fiber Grow Block

SKU: 4in6pk
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