The Grodan Group has for many years endeavoured to achieve a form of sustainable entrepreneurship in which economic, social and environmental interests are in an appropriate balance with each other. Over the course of the years, these endeavours have resulted in the company receiving a wide range of system, quality and environmental certifications, ranging from ISO 9001 and 14001 to Kiwa Keurmerk and the European Ecolabel.

European Ecolabel: the guarantee of sustainability

In 2008, Grodan was the first stone wool growing media manufacturer to be awarded the European Ecolabel, the EU’s seal of approval for non-food products. This demonstrates that Grodan products comply with the European environmental criteria for growing media of mineral origin, such as stone wool. In complying with these criteria, the raw materials must originate from properly licensed and responsibly managed sources and in addition, products must contain at least 30% recycled content. Furthermore, energy consumption and atmospheric pollution during manufacturing must comply with strictly monitored limits, products must satisfy the highest health and safety standards for stone wool materials and ambitious targets for the recycling of products must be met. Finally, products must also undergo testing using specific methods to guarantee their performance as growing media for plants. Manufacturers are obliged to make Information available to users and on product labels. Our products comply with the specific demands of the EU Ecolabel as follows:

  • The Ecolabel for Grodan growing media applies to its use in professional horticulture.
  • Product pH, test method EN 13037 (using nutrient solution): pH 6.0 – 6.5
  • Product EC, test method EN 13038: 10-25 MS/m
  • Germination and growth inhibition, test method EN 16086-1: no abnormalities

Since the European Ecolabel imposes environmental and quality requirements, it offers customers both guaranteed sustainability and guaranteed quality: this seal of approval demonstrates that supplying both quality and sustainable products can be achieved through compliance with the EU Ecolabel standard.

Kiwa Keurmerk: the guarantee of quality

The Kiwa Keurmerk seal of approval demonstrates that the manufacturer complies with the requirements imposed by the Kiwa certification agency in consultation with the horticultural sector. Kiwa imposes both general requirements and requirements for specific products on substrate manufacturers wishing to use the seal of approval. The general requirements extend to safety requirements focused on the safety of the product for humans, animals and the environment, transport and labelling requirements, and requirements on the instructions for optimum use. The requirements for specific products extend to physical, chemical and biological requirements. In addition, the manufacturer needs to have implemented an appropriate internal quality-control system. Consequently, customers of the Grodan Group can rest assured of receiving products of a consistent and high quality. More information about stone wool products.

ISO 9001: the standard for quality assurance 

The company’s ISO 9001 certification demonstrates that the Grodan Group complies with international quality control, management and assurance standards and the relevant legislation and regulations, whereby the focus is placed on the provision of quality to the company’s customers. In pursuing this, we adopt a proactive approach to increase customer satisfaction (by being aware of the customers’ needs and supplying products and services that exceed their expectations) and to implement continual improvements to the business processes (by basing those processes on the customers’ needs). The Grodan Group does so by using a quality-management system based on the principle: say what you are going to do, do what you say, and prove it. Consequently, the certification of the Group demonstrates that the company endeavours to implement the continual improvements in the quality and business processes required to meet the customers’ expectations and even go beyond.

ISO 14001: the standard for environmental assurance 

The ISO 14001 certification demonstrates that production process of Grodan substrates complies with the globally- accepted environmental-assurance standards. This certification is focused on the control of the environmental impact, reduction of the environmental risks and continual improvement of the environmental performance. The environmental management system developed on the basis of ISO 14001 enables companies to keep close track of the raw materials it uses, its emissions, waste, energy consumption and other environmental issues, and to assess whether it has achieved the specified environmental targets and achieved a performance in line with the prevailing legislation and regulations. This certification guarantees the maximum efforts to maintain a decent living environment, both now and in the future.