Grodan Delta Grow Blocks

$4.95

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums.

Grodan Blocks -Grodan Delta blocks are the most uniform blocks available on the market. They feature improved grooves at the base to promote better drainage. They are available in a large assortment of sizes and configurations to suit all types of plants. These growing blocks are used for direct sowing or "blocking on" of Macro and Multiblock raised plants. AO 36/40 plugs fit well into the hole sizes provided by the blocks. The blocks can then be placed on top of a slab to provide for a larger growing volume. Hugo is the largest of the growing blocks. It provides enough growing volume to support a larger plant, so it does not need to be placed on top of a slab.

Gro-Blocks are similar to a �plant container�. Need a 3� pot? Then choose a 3� Gro-Block. Small plants can be fully grown in our larger Gro-Blocks. Holes are perfect size for any 1.5� starter plug. The bases of the Gro-Blocks are grooved to promote drainage in order to avoid "wet feet". Comes in strips labeled with instructions.

Gro-Blocks Size in inches Hole sizes avail. Bloks/Strip Blocks/Case Usage Example

Delta 4
Small 3" 3x3x2� No hole or big hole 8 384 Small plants for transplanting

Delta 5.6
Large 3" 3x3x4 Big hole 8 256 NFT

Delta 6.5
Small4" 4x4x2� Big hole 6 216 Tomato/Cucumber

Delta 8
Medium 4" 4x4x3 No hole or big hole 6 180 Plants in large flood trays

Delta 10
Large 4" 4x4x4 Big hole 6 144 Plants in large flood trays

HUGO 6" 6x6 Big hole 1 48 Grows plants up to 3-4 ft.

Purchase Grodan Delta Grow Blocks

Select: Delta 4 Block - (Strip of 8) 3x3x2.5"; Delta 4 Block w/Hole - (Strip of 8) 3x3x2.5"; Delta 5.6 Block w/Hole - (Strip of 8) 3x3x4"; Delta 6.5 Block w/Hole - (Strip of 6) 4x4x2.5"; Delta 8 Block - (Strip of 6) 4x4x3"; Delta 8 Block w/Hole - (Strip of 6) 4x4x3"; Delta 10 Block w/Hole - (Strip of 6) 4x4x4"; Hugo w/Hole - (No Swrink Film) 6x6x5.8"; Case Delta 4 Block w/Hole - (Strip of 8) 3x3x2.5"; Case of Delta 8 Block w/Hole - (180 Blocks) 4x4x3"; Case of Hugo w/Hole (48 Blocks)

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