For 40 years, Grodan has been the global market leader in the supply of a wide range of integrated substrate solutions to professional growers endeavoring to achieve optimal cultivation of high-quality vegetables and plants.

Grodan provides its customers with innovative, certified and environmentally friendly products, advice and services to enable them to increase the quality and quantity of their crops-and the profitability and efficiency of their companies.

The GRODAN company is a part of the ROCKWOOL Group which employs more than 11,000 people in more than 35 countries.

The GRODAN name is synonymous with high quality horticultural stone wool- an inert medium discovered near volcanoes in the 1800’s and later created in factories by GRODAN to grow plants without soil.

GRODAN stone wool is produced under the highest quality control standards (ISO 9001) with great consideration to protecting the environment. We are the first substrate producer to have been awarded the prestigious European Eco-label; a more stringent environmental label that is used in Europe.

GRODAN stone wool’s raw material is basalt rocks and chalk. These are melted at 1600 C°. The lava is blown into a spinning chamber, which pulls the lava into fibers, much like ‘cotton candy’. When Mother Nature makes this wool we call it ‘angel hair’. If you have ever visited a volcano, you may have seen the fluffy angel hair flying around.

We pack the fibers together into a mat and cut GRODAN slabs and cubes from it. The stone wool Gro-Wool™ is bags with little flocks of 'angel hair'.

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Featured Location

Head Office

PO Box 1160
6040 KD

Additional Locations

  • North America

    8024 Esquesing Line
    Milton, Ontario L9T 6W3

  • Poland

    ul. Postępu 6

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