Grodan Granulate 25L

Grodan granulated rockwool can be mixed with other growing mediums to achieve more or less water retention.
Code: 9327719005135
Availability: Limited Stock
$ 99.90

  • Grodan granulate retains about 20 times its own weight in water.
  • Grodan rockwool granulate is best suited to recirculating systems.
  • It has a very high water holding capacity which means that it does not need to be watered often.
  • Rockwool has a higher pH and must be adjusted for best results.
  • Grodan Rockwool is a sterile medium specifically designed for the horticultural industry, made out of specific basalt stones.
  • Grodan granulated rockwool can be mixed with other growing mediums to achieve more or less water retention.
  • Ideal for cloning your favourite plants, or geminating your favourite seeds.

Care should be taken when handling rockwool by wearing gloves and a mask. The rockwool fibres can cause irritation to the skin, and if breathed in they can also irritate the lung.