Stone and the cultivation of plants go perfectly hand in hand. Transforming and utilising an abundant natural resource to benefit humanity is something we find rather magical and exciting. With Grodan stone wool growing media growers cultivate fresh produce that contribute to the health of consumers around the world. What is it that makes stone wool so special?

Seven Strengths/7 of Stone, Logo, Campaign, 7SS

In our brochure ‘7 strengths of stone wool growing media’ we explain why stone wool is perfectly suited for growing healthy and fresh food efficiently and sustainably. And with that the growing media to feed a growing population. Each strength is explained and enriched with links to other publications. In that way you can read much more on topics related to this story.

In this journey we take you by the hand and enlighten you on 7 strengths of stone wool growing. Which are these?

  • A uniform growing medium – thanks to a perfectly controlled manufacturing process. This makes the quality and properties of Grodan stone wool and this leads to precise plant behaviour thanks to an excellent root zone management
  • Water saving properties – we are all aware that water is a precious source. Stone wool is an inert medium and the water including nutrient solution that it holds is in its entirety available to the plants.
  • Respect for biodiversity – At a time when biodiversity is under threat, we are proud to be contributing to the safeguarding of our ecosystems
  • A bountiful natural resource – Every year the earth produces 38,000 times more basalt than ROCKWOOL uses to produce stone
  • Transparency and proximity – Grodan factories operate in accordance with the highly stringent European regulations for working conditions and product quality
  • 100% recyclable - one of the reasons our growing media are awarded the EU Ecolabel is because it is recyclable
  • Food safety compliant – food safety has never been this crucial in today’s world. Renowned institutes ensure that our products do not pose any threats to either humans

We believe we inspired you to read further and to discover much more on the seven strengths of our stone wool growing media. In case you have any questions, do not hesitate to contact us.

By significantly increasing yields per square meter, crops grown on stone wool growing media are a means of supporting the planet’s growing demand for food by using a smaller
surface area.

Our Blogs

Read our blogs


We can't find any results that match your search

Grodan, egro, release update

e-Gro: Optimized Yield Forecaster, advanced crop registrations for more insights and an improved user experience

Being part of the greenhouse sector, we are well aware of the fact that the current season came with multiple challenges and uncertainties in your greenhouse. Gas, energy, the significantly increased inflation, and the changing climate asks for even more flexibility and creativity to adapt to this changing environment.

Read more
Grodan, e-Gro, Grodan101, MJ

e-Gro Q2 2022 release: Better growing with the launch of Crop Analytics, support centre and pepper crop optimizations

We know many of you are facing a number of challenges in your greenhouse. With harvest season right around the corner, you could likely use some extra hands! Unfortunately, with the current staff shortages, extra labor is not easy to find. Additionally, gas prices are higher than ever which makes it even more important to use your energy as efficiently as possible. At the same time, consumers are increasingly demanding high quality crops with sustainability playing an increasingly important role.

Read more
strawberry, blog article, grodan
|Sustainable Growing

Meeting the needs of a changing industry

The world of commercial strawberry growing is at a crossroads. Internal and external factors are pushing forward-looking growers like Genson to rethink their production practices, not least the substrate they use. In this context, a couple of years back Genson asked independent expert, Elke Schellekens from Floraison, to lead a series of trials testing different substrates, including Grodan stone wool. The trials are still running, but Elke took a moment out from her busy schedule to reflect with the people at Grodan who’ve been involved with the trials on progress to date.

Read more
Viherkaste OY, blog article, grodan
|Sustainable Growing

The growing success of a happy lettuce company

When Finnish hydroponic lettuce growers Viherkaste OY found themselves facing persistent production problems, they worked with experts from Grodan to find a solution. Here CEO Erkki Nylund and Operational Manager Ilkka Saloranta discuss their journey.

Read more
Grodan, greenhouse, energy saving, plant activity, article, news, jos beerens
By Jan van Staalduinen |Water Management

Pay close attention to irrigation, nutrient content and cold feet

The sharp rise in energy prices is forcing many growers to reduce their lighting, to turn down the thermostat a little and provide screening for longer. If irrigation and nutrient levels are not adjusted accordingly, this can have major consequences for the crop and the roots, warns cultivation advisor Jos Beerens from Grodan.

Read more
grodan, greenhouse
By Andrew Lee|Sustainable Growing

Innovations in horticulture to look out for in 2022 and beyond part 2

Part II: Pyrgeometers and glass film technologies: innovations to support the transition to green energy in the greenhouse For the past years, two main challenges have been top of mind for greenhouse operators: labor (shortages and increasing costs) and the ever increasing costs of energy. Andrew Lee, Global Technical Knowledge Manager at Grodan and veteran in the horticultural business, sees these challenges not as limitations, but as important drivers for technological innovation in the sector. In the first part of this series, Lee dives into the latest tech solutions for challenge #2: the transition towards green energy in the greenhouse.

Read more
Load more