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Grodan Rockwool Blocks

Grodan Rockwool Blocks
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From $0.50


Product Information



Grodan Rockwool Blocks
 
Grodan Rockwool is a mineral wool made from molten basalt and limestone rock that is spun into cotton-candy like fibres and then compressed into cubes, blocks or slabs.  Being made from natural rock, Grodan is a mineral based product used in hydroponic growing applications.
 

40mm Block

MM 40/40 propagation grow cubes are individually wrapped small cubes ideal for seeds and cuttings.  The cubes guide the root growth downwards. There are 15 cubes per strip which can be easily separated.
You can also situate the MM 40/40 cube on top of other Grodan cubes, slabs or other growing media.
MM 40/40 cubes measure 1.5 x 1.5 x 1.5 inches (3.8 x 3.8 x 3.8cm)
 
 

75mm Block without hole

 
DU 4G (Delta 4G) without hole growing blocks are individually wrapped and are ideal for small plants and transplanting.  These are often referred to as a 3" cube without hole.  The blocks feature grooves on the base to promote good drainage.
The blocks can be used for direct seed or clone sowing, these blocks can also be placed on top of a Grodan Slab for larger growing volume.
Grodan Delta guarantees an optimum balance of air and water.  The variation of small and large pores throughout the block ensures that the roots are always supplied with sufficient air and water.
DU 4G blocks measure 3 x 3 x 2.5 inches (7.5 x 7.5 x 6cm approx.). 
 
 

75mm Block with 27mm x 35mm hole

DM 4G 27/35 growing blocks are individually wrapped and are ideal for small plants and transplanting.  These are often referred to as a 3" cube with large hole.  The blocks feature grooves on the base to promote good drainage.
The blocks can be used for direct plant sowing or can receive rooted propagation cubes such as the AO 36/40 plugs directly into the DM 4G 27/35 hole.  These blocks can also be placed on top of a Grodan Slab for larger growing volume.
Grodan Delta guarantees an optimum balance of air and water.  The variation of small and large pores throughout the block ensures that the roots are always supplied with sufficient air and water.
DM 4G 27/35 blocks measure 3 x 3 x 2.5 inches (7.5 x 7.5 x 6cm approx.).  
 
 

75mm Block with 42mm x 40mm hole

DM 4G 42/40 growing blocks are individually wrapped and are ideal for small plants and transplanting.  These are often referred to as a 3" cube with large hole.  The blocks feature grooves on the base to promote good drainage.
The blocks can be used for direct plant sowing or can receive rooted propagation cubes such as the AO 36/40 plugs directly into the DM 4G 42/40 hole.  These blocks can also be placed on top of a Grodan Slab for larger growing volume.
Grodan Delta guarantees an optimum balance of air and water.  The variation of small and large pores throughout the block ensures that the roots are always supplied with sufficient air and water.
DM 4G 42/40 blocks measure 3 x 3 x 2.5 inches (7.5 x 7.5 x 6cm approx.).  
 
 

100mm Block with 42mm x 40mm hole

DM 8G 42/40 with hole growing blocks are individually wrapped and are ideal for small plants and transplanting.  These are often referred to as a 4" cube with hole.  The blocks feature grooves on the base to promote good drainage.
The blocks can be used for seeds or cuttings sowing upto medium sized plants, these blocks can also be placed on top of a Grodan Slab for larger growing volume.
Grodan Delta guarantees an optimum balance of air and water.  The variation of small and large pores throughout the block ensures that the roots are always supplied with sufficient air and water.
DM 8G 42/40 blocks measure 4 x 4 x 3 inches (10 x 10 x 7.6cm approx.).  
 
 

150mm Block with 40mm x 40mm hole

DM32 G HUGO 40/40 with hole growing blocks are individually wrapped and are ideal for small plants and transplanting.  These are often referred to as a 6" cube with hole.  The blocks feature grooves on the base to promote good drainage.
The blocks can be used for seeds or cuttings sowing upto medium sized plants, these blocks can also be placed on top of a Grodan Slab for larger growing volume.
Grodan Delta guarantees an optimum balance of air and water.  The variation of small and large pores throughout the block ensures that the roots are always supplied with sufficient air and water.
DM32 G HUGO 40/40 blocks measure 6 x 6 x 5.5 inches (15 x 15 x 14cm approx.).

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