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Growing Media » Rockwool Media
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Rockwool Media

Grodan Stonewool A-Ok Starter Plugs

Grodan Stonewool A-Ok Starter PlugsA-Ok Starter Plugs are for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-Ok plugs come labeled with instructions in a shrink-wrapped sheet that fits standard 10x20 tray (flat). Note: Item #713020 is supplied without shrink wrap.

*This item does not qualify for free shipping
Item # Description Price Add to Cart
713030A-OK 2in X 2in PLUGS (30 SHEETS/CS)$293.55 Add to Cart
713025A-OK 1.5in X 1.5in PLUGS (30 SHEETS/CS)$337.36 Add to Cart
713020A-OK 1in X 1in PLUGS (30 SHEETS/CS)$372.41 Add to Cart

Grodan Stonewool Delta Gro-Blocks

Grodan Stonewool Delta Gro-BlocksGro-Blocks are similar to 'plant container'. Need a 3" pot? Then choose a 3" Gro-Block. Small plants can be fully grown in larger Gro-Blocks. Holes are perfect size for any 1.5" starter plug. Come in packs labeled with instructions.

*This item does not qualify for free shipping
Item # Description Price Add to Cart
713085HUGO 6 x 6 x 5.8in - HOLE (1EA = 48 BLOCKS)$142.11 Add to Cart
713065DELTA 6.5 BLOCK 4x4x2.5in - HOLE (1EA=36PKS)$172.40 Add to Cart
713075DELTA 8 BLOCK 4x4x3in - HOLE (1EA = 30 PKS)$196.28 Add to Cart
713080DELTA 10 BLOCK 4x4x4in - HOLE (1EA=24 PKS)$196.28 Add to Cart
713070DELTA 8 BLOCK 4x4x3in - NO HOLE (1EA=30PKS)$209.62 Add to Cart
713060DELTA 5.6 BLOCK 3x3x4in - HOLE (1EA= 32 PKS)$221.45 Add to Cart
713050DELTA 4 BLOCK 3x3x2.5in - NO HOLE (1= 48 PKS)$221.48 Add to Cart
713055DELTA 4 BLOCK 3x3x2.5in - HOLE (1= 48 PKS)$221.48 Add to Cart

Grodan Stonewool Delta Starter Mini-Blocks

Grodan Stonewool Delta Starter Mini-BlocksMini-Blocks sit in a tray (flat) without support for easy starting of seeds and cuttings. These Mini-Blocks are individually wrapped in white plastic to minimize algae growth. Remove wrapping and transplant into any loose media such as Growcubes or coconut fiber or leave wrapping on and set on top of a larger Gro-Block. Packed in easy to tear away strips, labeled with instructions.

1.5" - 15 blocks per strip/50 strips per case
2" - 12 blocks per strip/60 strips per case

*This item does not qualify for free shipping
Item # Description Price Add to Cart
7130452in STARTER MINI-BLOCKS 2 x 2 x 1.5in - 1 CASE$345.33 Add to Cart
7130401.5in STARTER MINI-BLOCKS - 1 CASE$385.66 Add to Cart

Grodan Stonewool Granulate

Grodan Stonewool GranulateGranulated rockwool works great on its own or mixed with other loose media such as expanded clay rocks or coconut fiber. If planting in containers outdoors, Water Absorbent Granulate is the best medium of choice.

*This item does not qualify for free shipping
Item # Description Price Add to Cart
713090GRODAN ABSORBENT GRANULATE 45 lb bag$66.97 Add to Cart

Grodan Stonewool Gro-Slabs

Grodan Stonewool Gro-Slabs

Gro-Slabs provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block plant onto a slab just like professional growers. They come in clearly marked biodegradable UV resistant sleeves for comfortable handling and algae prevention.
  • Expert vertical fibers for faster drainage; best for hobbyists
  • Classic horizontal fibers for slower drainage; best for hot/dry climates
*This item does not qualify for free shipping
Item # Description Price Add to Cart
713000EXPERT FAT SLAB 15/100 - 6in x 4in x 36 in (1=9 slabs)$81.11 Add to Cart
713005EXPERT SLAB 15/75 - 6in x 3in x 36 in (1=12 slabs)$81.12 Add to Cart
713010EXPERT SLAB 20/75 - 8in x 3in x 36in (1=12 slabs)$105.31 Add to Cart
713015CLASSIC SLAB 30/75 - 12in x 3in x 36in (1=8 slabs)$105.86 Add to Cart

Grodan Stonewool Growcubes

Grodan Stonewool GrowcubesGrowcubes are small, loose 1/2" cubes of stonewool. Advantages are better aeration, maximum drainage so that you can hardly ever over-water your plant, easy mixing with other loose media (such as expanded clay rocks or coconut fiber), lightweight and much cleaner than pot-based media. The properties of Growcubes make it like a 50/50 mix of absorbent to repellant stonewool.

*This item does not qualify for free shipping
Item # Description Price Add to Cart
713105GRODAN GROWCUBES LOOSE BOX$90.00 Add to Cart
713095GRODAN GROWCUBES 2CF LARGE 1EA=3 BAGS$105.50 Add to Cart
713100GRODAN GROWCUBES 1CF MEDIUM 1EA=6 BAGS$130.30 Add to Cart

Grodan Stonewool Macro Plugs

Grodan Stonewool Macro PlugsMacro Plugs have a slit that allows easy insertion of a cutting. These loose round plugs fit perfectly into the Gro-Block hole. For best results with these Macro Plugs, always insert them into a tray with individual cells. The individual cell will make sure that the plug stays closed around the stem of your cutting.

*This item does not qualify for free shipping
Item # Description Price Add to Cart
713035MACRO PLUG BULK-ROUND W/SLIT (1EA=2000)$312.44 Add to Cart
713038MACRO PLUG W/SLIT 50/BAG (1EA= 35 BAGS)$321.35 Add to Cart

Pargro Stonewool

Pargro Stonewool

Quality at a smart price.

  • Better grooves, better drainage less risk of root rot
  • Uniform fiber structure ensures optimum nutrient and pH control
  • Produced at the Grodan factory, but holds 3% more water than Grodan
  • Used worldwide by commercial growers for over 14 years.
    • *This item does not qualify for free shipping
    Item # Description Price Add to Cart
    713135NEPTUNE 15/75 - 90 36x 6x 3in -1 CASE- 14pieces/case$77.83 Add to Cart
    713140NEPTUNE 20/75 - 90 36x 8x 3in -1CASE- 12 peices/case$77.83 Add to Cart
    713155NEPTUNE BIGGIE 6in BLOCK - 1 CASE - 48pieces/case$113.99 Add to Cart
    713130NEPTUNE BLOCK W/HOLE 4 x 4 x 4in -1 CASE- 144pieces/case$127.97 Add to Cart
    713125NEPTUNE BLOCK W/HOLE 4 x4 x2.5in -1 CASE- 216pieces/case$133.57 Add to Cart
    713120NEPTUNE BLOCK 3 x 3 x 2.5in HOLE -1 CASE- 384pieces/case$142.40 Add to Cart
    713110NEPTUNE PLUG 1.5 x 1.5 x 1.5in - 1 CASE - 2940pieces/case$256.29 Add to Cart
    713115NEPTUNE BLOCK 1.5 x 1.5 x 1.5in - 1 CASE - 2250pieces/case$297.44 Add to Cart
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