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Rockwool

Rockwool is often used for hydroponic culture. Rockwool has a good moisture retention capacity and provides great aeration and drainage for your plants.
  • GRODAN A-OK STARTER PLUGS 1.5'' 36 / 40 98 / SHEET (box of 2940) - HydroponicsClub
    Original price $14.95 - Original price $17.95
    Original price
    $14.95
    $14.95 - $17.95
    Current price $14.95

    GRODAN A-OK STARTER PLUGS 1.5'' 98/SHEET

    Grodan

    A-Ok Starter Plugs™ are for starting seeds and rooting cuttings prior to plugging into larger Gro-Blocks™. The 1.5” size fits perfectly in the Gro...

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    Original price $14.95 - Original price $17.95
    Original price
    $14.95
    $14.95 - $17.95
    Current price $14.95
  • GRODAN MACROPLUGS 35 BAGS OF 50 (box of 1750) - HydroponicsClub
    Original price $14.95 - Original price $14.95
    Original price
    $14.95
    $14.95 - $14.95
    Current price $14.95

    GRODAN 1.5" MACROPLUGS BAG OF 50

    Grodan

    Macroplugs have a slit that allows for easy insertion of a cutting or bare-root plant.These round plugs fit perfectly into our Gro-Blocks™.For be...

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    Original price $14.95 - Original price $14.95
    Original price
    $14.95
    $14.95 - $14.95
    Current price $14.95
  • Original price $1.79 - Original price $1.79
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    $1.79
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    Current price $1.79

    Grodan Cress Plate 10'' X 20''

    Grodan

    Cress PlateThe ideal growing media for microgreens and baby leaf cropsThinnest Grodan product availableConsistent structure results in quick and ea...

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    Original price $1.79 - Original price $1.79
    Original price
    $1.79
    $1.79 - $1.79
    Current price $1.79
  • GRODAN GROW CUBES LOOSE BOX OF 5.07 CU.FT. - HydroponicsClub
    Original price $114.95 - Original price $114.95
    Original price
    $114.95
    $114.95 - $114.95
    Current price $114.95

    GRODAN GROW CUBES LOOSE BOX OF 5.07 CU.FT.

    Grodan

    Macroplugs have a slit that allows for easy insertion of a cutting or bare-root plant.These round plugs fit perfectly into our Gro-Blocks™.For best...

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    Original price $114.95 - Original price $114.95
    Original price
    $114.95
    $114.95 - $114.95
    Current price $114.95
  • Save up to 20% Save %
    Original price $6.50 - Original price $199.95
    Original price $6.50 - Original price $199.95
    Original price $6.50
    $4.95 - $159.95
    $4.95 - $159.95
    Current price $4.95

    Grodan Improved GR40 Uniblock, 8" x 8" x 4"

    Grodan

    Grodan ImprovedUniblock GR40, 8" x 8" x 4"Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers ...

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    Original price $6.50 - Original price $199.95
    Original price $6.50 - Original price $199.95
    Original price $6.50
    $4.95 - $159.95
    $4.95 - $159.95
    Current price $4.95
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  • Save 32% Save %
    Original price $8.95
    Original price $8.95 - Original price $8.95
    Original price $8.95
    Current price $6.05
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    Current price $6.05

    Grodan Delta Big Mama 8'' x 8'' x 8''

    Grodan

    BIG MAMA is the largest block ever produced by Grodan. It is 8" square and contains over twice the amount of rockwool as the popular Hugo block. Th...

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    Original price $8.95
    Original price $8.95 - Original price $8.95
    Original price $8.95
    Current price $6.05
    $6.05 - $6.05
    Current price $6.05
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  • GRODAN GRO-WOOL ABSORBANT GRANULATE 45 LB - Hydroponics Club Canada
    Original price $84.95 - Original price $84.95
    Original price
    $84.95
    $84.95 - $84.95
    Current price $84.95

    GRODAN GRO-WOOL ABSORBANT GRANULATE 45 LB

    Grodan

    Gro-Wool can support house plants while watering just once every 2 to 4 weeks.When growing in clay pellets mix in Gro-Wool to make water and nutrie...

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    Original price $84.95 - Original price $84.95
    Original price
    $84.95
    $84.95 - $84.95
    Current price $84.95
  • GRODAN GRO-BLOCKS DELTA 4X4X4'' UNWRAPPED (144) - Hydroponics Club Canada
    Original price $249.95 - Original price $249.95
    Original price
    $249.95
    $249.95 - $249.95
    Current price $249.95

    GRODAN GRO-BLOCKS DELTA 4X4X4'' UNWRAPPED (144)

    Grodan

    Whether starting your seeds and cuttings in A-OK Starters, Macroplugs, or Mini-Blocks it is a good idea to transplant into a 3” or 4” block.You kno...

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    Original price $249.95 - Original price $249.95
    Original price
    $249.95
    $249.95 - $249.95
    Current price $249.95
  • PARGRO QD HORIZONTAL SLAB 6''X36''X3'' (12) - HydroponicsClub
    Original price $95.35 - Original price $95.35
    Original price
    $95.35
    $95.35 - $95.35
    Current price $95.35

    PARGRO QD HORIZONTAL SLAB 6''X36''X3'' (12)

    Pargro

    PARGRO QD HORIZONTAL SLAB 6''X 36''X 3'' (box of 12).

    Original price $95.35 - Original price $95.35
    Original price
    $95.35
    $95.35 - $95.35
    Current price $95.35
  • PARGRO QD JUMBO BLOCKS 6''X6''X4'' (64) - HydroponicsClub
    Original price $149.99 - Original price $149.99
    Original price
    $149.99
    $149.99 - $149.99
    Current price $149.99

    PARGRO QD JUMBO BLOCKS 6''X6''X4'' (64)

    Pargro

    Pargro QD JUMBO BLOCKS 6''X6''X4'' (box of 64)/ with hole in it-Made at the Grodan factories-Plain brown half case sizes-Better quality and drainag...

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    Original price $149.99 - Original price $149.99
    Original price
    $149.99
    $149.99 - $149.99
    Current price $149.99
  • PARGRO QD BIGGIE BLOCKS 6''X6''X6'' (64) - HydroponicsClub
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    Original price $234.95
    Original price $234.95 - Original price $234.95
    Original price $234.95
    Current price $182.95
    $182.95 - $182.95
    Current price $182.95

    PARGRO QD BIGGIE BLOCKS 6'' X 6'' X 6'' (64)

    Pargro

    About Pargro QD BIGGIE BLOCKS 6''X6''X6'' (box of 64)Pargro Rockwool has been modified to be the driest value-priced Rockwool in the market. Pargr...

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    Original price $234.95
    Original price $234.95 - Original price $234.95
    Original price $234.95
    Current price $182.95
    $182.95 - $182.95
    Current price $182.95
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  • PARGRO QD PLUGS 1.5'' - 26 PACKS OF 45 UNITS (1170) - HydroponicsClub
    Original price $244.72 - Original price $244.72
    Original price
    $244.72
    $244.72 - $244.72
    Current price $244.72

    PARGRO QD PLUGS 1.5'' - 26 PACKS OF 45 UNITS (1170)

    Pargro

    PARGRO QD PLUGS 1.5 '' - 26 PACKAGES OF 45 UNITS (1170)

    Original price $244.72 - Original price $244.72
    Original price
    $244.72
    $244.72 - $244.72
    Current price $244.72
  • GRODAN CRESS PLATE 10'' X 20'' (box of 95) - HydroponicsClub
    Original price $149.95 - Original price $149.95
    Original price
    $149.95
    $149.95 - $149.95
    Current price $149.95

    GRODAN CRESS PLATE 10'' X 20'' (box of 95)

    Grodan

    Grodan Cress Plate The ideal growing media for microgreens and baby leaf crops Thinnest Grodan product available Consistent structure results in ...

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    Original price $149.95 - Original price $149.95
    Original price
    $149.95
    $149.95 - $149.95
    Current price $149.95
  • GRODAN GRO-BLOCKS DELTA 3'' UNWRAPPED (box of 384) - HydroponicsClub
    Original price $279.95 - Original price $279.95
    Original price
    $279.95
    $279.95 - $279.95
    Current price $279.95

    GRODAN GRO-BLOCKS DELTA 3'' UNWRAPPED (box of 384)

    Grodan

    Whether starting your seeds and cuttings in A-OK Starters, Macroplugs, or Mini-Blocks it is a good idea to transplant into a 3” or 4” block.You kno...

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    Original price $279.95 - Original price $279.95
    Original price
    $279.95
    $279.95 - $279.95
    Current price $279.95
  • GRODAN GRO-BLOCKS DELTA 4X4X2.5'' UNWRAPPED (box of 216) - HydroponicsClub
    Original price $162.95 - Original price $162.95
    Original price
    $162.95
    $162.95 - $162.95
    Current price $162.95

    GRODAN GRO-BLOCKS DELTA 4X4X2.5'' UNWRAPPED (box of 216)

    Grodan

    Whether starting your seeds and cuttings in A-OK Starters, Macroplugs, or Mini-Blocks it is a good idea to transplant into a 3” or 4” block.You kno...

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    Original price $162.95 - Original price $162.95
    Original price
    $162.95
    $162.95 - $162.95
    Current price $162.95
  • GRODAN GRO-SLAB 15 / 75 6''X36''X3'' (box of 12) - HydroponicsClub
    Original price $93.95 - Original price $93.95
    Original price
    $93.95
    $93.95 - $93.95
    Current price $93.95

    GRODAN GRO-SLAB 6''X 36'' X 3'' (box of 12)

    Grodan

    Most plants can grow in Gro-Slabs but they are particularly good for growing large vine crops such as tomatoes or cucumbers.For plants growing outd...

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    Original price $93.95 - Original price $93.95
    Original price
    $93.95
    $93.95 - $93.95
    Current price $93.95
  • GRODAN GRO-BLOCKS HUGO 6'' (box of 64) - HydroponicsClub
    Original price $314.95 - Original price $314.95
    Original price
    $314.95
    $314.95 - $314.95
    Current price $314.95

    GRODAN GRO-BLOCKS HUGO 6'' (box of 64)

    Grodan

    Hugo is large enough to grow out most vegetables and some fruits for the entire life span of the plant.Hugo’s holes are the perfect size for any 1....

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    Original price $314.95 - Original price $314.95
    Original price
    $314.95
    $314.95 - $314.95
    Current price $314.95
  • GRODAN GRO-SLAB 15 / 75X100 6''x40''x3'' (box of 12) - HydroponicsClub
    Original price $114.95 - Original price $114.95
    Original price
    $114.95
    $114.95 - $114.95
    Current price $114.95

    GRODAN GRO-SLAB 6''x 40''x 3'' (box of 12)

    Grodan

    Most plants can grow in Gro-Slabs but they are particularly good for growing large vine crops such as tomatoes or cucumbers.For plants growing outd...

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    Original price $114.95 - Original price $114.95
    Original price
    $114.95
    $114.95 - $114.95
    Current price $114.95
  • GRODAN GRO-SLAB 20 / 75 8"X36"X3'' (box of 12) - HydroponicsClub
    Original price $139.95 - Original price $139.95
    Original price
    $139.95
    $139.95 - $139.95
    Current price $139.95

    GRODAN GRO-SLAB 8" X 36" X 3'' (box of 12)

    Grodan

    Most plants can grow in Gro-Slabs but they are particularly good for growing large vine crops such as tomatoes or cucumbers.For plants growing outd...

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    Original price $139.95 - Original price $139.95
    Original price
    $139.95
    $139.95 - $139.95
    Current price $139.95
  • Original price $10.95 - Original price $10.95
    Original price
    $10.95
    $10.95 - $10.95
    Current price $10.95

    GRODAN GRO-BLOCKS DELTA 4'' X 4'' X 4'' (Pack of 6)

    Grodan

    Description Whether starting your seeds and cuttings in A-OK Starters, Macroplugs, or Mini-Blocks it is a good idea to transplant into a 3” or ...

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    Original price $10.95 - Original price $10.95
    Original price
    $10.95
    $10.95 - $10.95
    Current price $10.95
  • Original price $5.95 - Original price $5.95
    Original price
    $5.95
    $5.95 - $5.95
    Current price $5.95

    GRODAN GRO-BLOCKS HUGO 6''

    Grodan

    Description Hugo is large enough to grow out most vegetables and some fruits for the entire life span of the plant.Hugo’s holes are the perfect...

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    Original price $5.95 - Original price $5.95
    Original price
    $5.95
    $5.95 - $5.95
    Current price $5.95
  • PARGRO QD BLOCKS 4''X4''X4" 6 / STRIP (72) - HydroponicsClub
    Original price $279.99 - Original price $279.99
    Original price
    $279.99
    $279.99 - $279.99
    Current price $279.99

    PARGRO QD BLOCKS 4''X4''X4" 6 / STRIP (72)

    Pargro

    About Pargro QD BLOCKS 4''X4''X4" 6 / STRIP (box of 72):-Made at the Grodan factories-Plain brown half case sizes-Better quality and drainage than ...

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    Original price $279.99 - Original price $279.99
    Original price
    $279.99
    $279.99 - $279.99
    Current price $279.99