Rockwool Delta Grow Blocks

Size: 3 Inch
Unit: Large Hole
Sale price£3.50


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.

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