Canna Coco Substrate is washed & buffered according to the strict Dutch RHP Quality Assurance Standard. It is manufactured in Holland from carefully selected untreated coir from India. Canna Coco Substrate does not undergo harmful steam or methyl bromide treatments. These treatments damage the naturally occurring organic compounds and Trichoderma Fungi needed for root development and overall plant health. Canna Coco Substrate retains all the benefits of the naturally occurring Trichoderma fungi thus maintaining the ideal environment for rapid plant growth and vigour.