Lawn & Patio: Grodan 2" x 2" x 1.5" Rockwool Blocks - 24 Pack - Grodan
Lawn & Patio: Grodan Rockwool Plant Plugs, Macro, 50-Pack - Hydrofarm, Inc.
Lawn & Patio: Grodan Rockwool Gro Blocks 4x4x4 with holes - Grodan
Lawn & Patio: Grodan Rockwool Gro-Blocks Delta 10 4"x4"x4" 6pk - Smithers-Oasis
Lawn & Patio: Hydrofarm Rockwool Block Covers (4 x 4 Inches) - 40 Pack - Hydrofarm
Lawn & Patio: Grodan Rockwool Cubes (1.5 Inches) 45 Per Pack - Grodon
Lawn & Patio: Grodan Rockwool 1.5" Macroplug with Slit - 50 Pack - Grodan
Lawn & Patio: Gro-Blocks - 3 in. x 3 in. x 2.5 in. 8 Wrapped Blocks - DM4 (Rockwool / Stonewool) Grodan - Grodan
Lawn & Patio: Grodan Hugo Rockwool Growing Cubes - Grodan
Lawn & Patio: 3" x 3" x 3" Rockwool Blocks with Hole - 48 Pack
Lawn & Patio: Grodan Delta 4 Small Rockwool Gro Blocks 3" X 3 " X 2.5 Inch / 1 Case = 48 Strips (384 Blocks Total) - Grodan
Lawn & Patio: Grodan Delta 10 Large Rockwool Gro Blocks 4" X 4 " X 4 Inch / 1 Case = 24 Strips (144 Blocks Total) - Grodan
Lawn & Patio: Hydrofarm 6 in. Rockwool Block Cover - Pack of 40 - Hydrofarm Inc
Lawn & Patio: 4" x 4" x 4" Rockwool Block with Hole
Lawn & Patio: Rockwool Grow Cubes (1.5 Inches) - Growing Medium Starter Sheets (30 Per Pack) - YP Supplier
Lawn & Patio: Grodan Delta 6.5 Rockwool Gro Blocks 4" X 4 " X 2.5 Inch / 1 Case = 36 Strips (216 Blocks Total) - Grodan
Lawn & Patio: Grodan Big Mama Rockwool Starting Block 8" x 8" x 8" - BWGS
Home: Grodan Rockwool 2"x2"x2" Sheet of 50 sites & 10"x20" Cut Tray Combo - Flora Hydroponics
Lawn & Patio: The Bloom Cube (case of 48) Rockwool Gro Blocks 6x6x6 Harvest Cube w/holes Flower Vegetable Growing Medium Replaces GroDan - Harvest Cube
Lawn & Patio: Grodan Rockwool Gro-Blocks Delta 10 (4 X 4 X 4 Inches) 6 Per Pack - Grodon
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Rockwool Block Popular Q&A
Q: What size rockwool blocks should I use in a tray that is 3'x3'x3"...
A: Rockwool is one of the most popular growing mediums in hydroponics. i think Rockwool Grow Block 3 x 3 x 4 inches will be work for you...i am not sure. but you c... Read More »
Rockwool Block Helpful Resources
Grodan Rockwool - Greentrees Hydroponics
Multiblocks are designed for cuttings or seed propagation and fit in the holes cut in the larger Rockwool cubes. The blocks come in sheets cut to fit in a standard ...
Rockwool, Product Information - Greentrees Hydroponics
Rockwool Comes In Many Shapes And Sizes Horticultural Rockwool growing media is primarily available in two general formats. First, as rigid slabs, blocks, and ...
Using Rockwool - Simply Hydroponics
Rockwool has long been among the most popular growing medium on earth. ... then plant into your prepared Grodan block, slab, growcubes™, or granulate!
Seed - The Advanced Way | Grodan 101
Do not cover the seeding hole with Rockwool. ... After transplant don't water the block for a couple of days. Water when the block feels half way dry. When the ...