Rockwool Cube - 6Inch Large Hole Hugo Block - Urban Grower Hydroponics

Rockwool Cube - 6Inch Large Hole Hugo Block

Regular price
Sale price
Tax included. Shipping calculated at checkout.

Rockwool holds lots of water and air for fast rooting and growth. Our 6-Inch Hugo Block Rockwool Cubes are great for growing your rooted cuttings in from start to finish or for before transplanting into your hydroponics system. The Rockwool is finely spun and of high quality and the hole in the top will take almost any 1-inch size rooting-cube,

Including 1-inch rockwool cubes, fleximix plugs and Jiffy 7 soil plugs. Hugo Blocks are great in an NFT system where their large base will help prevent plants from falling over. Hugo Blocks provide lots of space for plants to root into

Using the 6-Inch Large-Hole Hugo Block Rockwool Cube

For best results, soak the Hugo Block rockwool cubes in weak nutrient solution which has been pH adjusted to about 5.5 and leave overnight. Before use, shake out excess nutrient solution. Rooted cuttings can then be placed directly into the pre-soaked 6-Inch Hugo Block rockwool cube.

The cuttings can then be grown into larger plants. When roots appear on the outside of the Hugo Block rockwool cubes, they can then be transplanted into your hydroponics system.


  • Rockwool – a traditional and trusted growing medium
  • Ideal for growing in before final transplantation
  • Small hole will take any 1/2- Inch rooting-cube, such as our 1/2-inch rockwool cubes
  • Economical and easy to use