Hydroponic Grow Media

National Hydro Group is your online source for Hydroponic Grow Media. If you cant find the Hydroponic Grow Media that meet your needs please give us a ring or send a quick email so we can help you find exactly what you're looking for.
Grodan Grow-Cubes, 5.07 cu ft loose-NWGSupply.com
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$106.85
$86.55

Grodan Grow-Cubes, 5.07 cu ft loose

Grodan

Made of the same high-quality stonewool as the larger cubes and slabs, these miniature Grodan Grow-Cubes fit any container size or shape. Grow-Cube...

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$106.85
$86.55
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Grodan Delta Hugo 6 in Block 6 in x 6 in x 6 in w/ Hole (64/cs)-NWGSupply.com
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$227.71
$170.90

Grodan Delta Hugo 6 in Block 6 in x 6 in x 6 in w/ Hole (64/cs)

Grodan

Gro-Blocks are similar to a plant container. Need a 3 in pot? Then choose a 3 in Gro-Block. Small plants can be fully grown in our larger Gro-Block...

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$227.71
$170.90
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Grodan Grow-Cubes, 2 cu ft (3/Case)-NWGSupply.com
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$134.42
$121.38

Grodan Grow-Cubes, 2 cu ft (3/Case)

Grodan

Made of the same high-quality stonewool as the larger cubes and slabs, these miniature Grodan Grow-Cubes fit any container size or shape. Grow-Cube...

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$134.42
$121.38
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Grodan Pargro QD 4 in x 4 in Block (72) w/ Hole-NWGSupply.com
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$103.28
$91.37

Grodan Pargro QD 4 in x 4 in Block (72) w/ Hole

Grodan

Same quality, same value-priced, Half sized cases. Driest value-priced rockwool on the market. Made at the Grodan factories. Plain brown half case ...

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$103.28
$91.37
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Grodan Pargro QD Biggie Block 6 in x 6 in x 6in w/ Hole 64/Pack-NWGSupply.com
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$213.47
$183.95

Grodan Pargro QD Biggie Block 6 in x 6 in x 6in w/ Hole 64/Pack

Grodan

Same quality, same value-priced, Half sized cases. Driest value-priced rockwool on the market. Made at the Grodan factories. Plain brown half case ...

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$213.47
$183.95
Save 14%
Grodan Granulate Water Absorbent, 45 lb-NWGSupply.com
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$85.00
$77.62

Grodan Granulate Water Absorbent, 45 lb

Grodan

Grodan Water Absorbent Granules consist of premium horticultural stonewool with a reputation for quality and performance. Particularly practical in...

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$85.00
$77.62
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Pargro QD Jumbo Case:36-NWGSupply.com
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$87.62
$70.97

Pargro QD Jumbo Case:36

Pargro

Pargro is the leader among affordable horticultural rockwool. Made right in the Grodan factory, you can be assured of a high quality product at a g...

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$87.62
$70.97
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Gro-Slab, 40" x 6" x 3" (12 per case)-NWGSupply.com
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$110.44
$96.95

Gro-Slab, 40" x 6" x 3" (12 per case)

Grodan

Grodan Stonewool is a proven hydroponics growing medium preferred by garden enthusiasts everywhere. The 39" x 6" x 3" Expert Slab is perfect for "b...

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$110.44
$96.95
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Nutrilife PyroCLAY 15 kg-NWGSupply.com
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$188.95
$153.57

Nutrilife PyroCLAY 15 kg

Nutrilife

PyroCLAY provides a highly available source of silicon. It contains 97 natural elements. Improves plant vigor and provides several critical nutrien...

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$188.95
$153.57
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Grodan Delta Big Mama Block 8 in x 8 in x 8 in-NWGSupply.com
$156.77

Grodan Delta Big Mama Block 8 in x 8 in x 8 in

Grodan

Gro-Blocks are similar to a plant container. Need a 3 in pot? Then choose a 3 in Gro-Block. Small plants can be fully grown in our larger Gro-Block...

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$156.77
Mini Cubes Loose-NWGSupply.com
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$106.84
$86.54

Mini Cubes Loose

Grodan

This loose fill, non-bagged product consists of small stonewool croutons about the size of a finger nail. When you use this potting mix the miniatu...

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$106.84
$86.54
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Gro-Slab, 36" x 8" x 3" (case of 12)-NWGSupply.com
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$139.20
$125.28

Gro-Slab, 36" x 8" x 3" (case of 12)

Grodan

Grodan Stonewool is a proven hydroponics growing medium preferred by garden enthusiasts everywhere. This 36" x 8" x 3" Delta Expert Gro-Slab is per...

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$139.20
$125.28
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Cube 2x2x1.5-NWGSupply.com
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$338.97
$263.23

Cube 2x2x1.5

Grodan

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where oth...

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$338.97
$263.23
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CocoTek Grow Mat, 4' x 8' x 1/4"-NWGSupply.com
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$50.50
$35.28

CocoTek Grow Mat, 4' x 8' x 1/4"

General Hydroponics

Designed to line hydroponics ebb and flow tables and prevent fragile root systems from drying out, CocoTek Grow Mats can also be used to cover drai...

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$50.50
$35.28
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PLANT!T Clay Pebbles 25L 8mm-16mm-NWGSupply.com
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$21.95
$16.05

PLANT!T Clay Pebbles 25L 8mm-16mm

PLANT!T

PLANT!T horticultural clay pebbles are made from 100% natural clay. They are clean, pH stable, and offer great aeration and drainage in hydroponics...

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$21.95
$16.05
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PLANT!T Clay Pebbles 10L 8mm-16mm-NWGSupply.com
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$11.95
$8.70

PLANT!T Clay Pebbles 10L 8mm-16mm

PLANT!T

PLANT!T horticultural clay pebbles are made from 100% natural clay. They are clean, pH stable, and offer great aeration and drainage in hydropo...

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$11.95
$8.70
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GROW!T Clay Pebbles, 4 mm-16 mm, 40 L-NWGSupply.com
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$27.95
$19.39

GROW!T Clay Pebbles, 4 mm-16 mm, 40 L

GROW!T

GROW!T horticultural clay pebbles are made from 100% natural clay. They are clean, pH stable, and offer great aeration and drainage in hydroponics...

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$27.95
$19.39
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3" Square Grow Lids-NWGSupply.com
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$4.79
$3.20

3" Square Grow Lids

Panda

Dual-sided 5.5mil grow lids have a white face to reflect light back to the plants and a black side to block light and help with algae, mildew and p...

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$4.79
$3.20
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Pargro QD Plugs, 1.5", 98 pk (14Pk/case)-NWGSupply.com
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$178.36
$160.44

Pargro QD Plugs, 1.5", 98 pk (14Pk/case)

Pargro

Pargro QD (Quick Drain) offers an economical alternative to other rockwool products, without skimping on quality. Because Pargro skips the frills, ...

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$178.36
$160.44
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Pargro QD 4x4" Wrapped-NWGSupply.com
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$81.14
$68.17

Pargro QD 4x4" Wrapped

Pargro

Pargro is the leader among affordable horticultural rockwool. Made right in the Grodan factory, you can be assured of a high quality product at a g...

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$81.14
$68.17
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Starter Mini-Blocks, 1.5", 45 Pack (50 per case)-NWGSupply.com
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$496.50
$447.00

Starter Mini-Blocks, 1.5", 45 Pack (50 per case)

Grodan

Stonewool is recognized the world over as the ideal hydroponics growing substrate. Grodan stonewool is known for its quality, consistency and perfo...

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$496.50
$447.00
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Medium Water Repellent Granulate, 45 lbs.-NWGSupply.com
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$82.52
$74.95

Medium Water Repellent Granulate, 45 lbs.

Grodan

Granulated rockwool can be used alone or as an amendment to organic based mixes. For example, the addition of water absorbant granulate to peat mix...

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$82.52
$74.95
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Hugo Blk 6x6x5.8 w/hole 40/40-NWGSupply.com
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$167.47
$141.41

Hugo Blk 6x6x5.8 w/hole 40/40

Grodan

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where oth...

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$167.47
$141.41
Save 16%