Rockwool Delta Grow Blocks

The original Grodan Delta rockwool blocks available in 3" and 4" versions with 1.5" or 1" insert holes, great for transplanting cuttings into before going into a hydroponic system or even coco pots.

 

 Pre soak rockwool blocks in a low strength nutrient and root stimulant at a pH value of around 5.3-5.5, the rockwool will raise the pH levels. allow to drain before planting into.

 

 

available in:

3 inch cubes strips of 8

4 inch cubes strips of 6

 

 

* Box pricing available.