CANNA Terra Professional is an enriched growing medium that conforms to the strictest RHP standards. It distinguishes itself from other substrates through its use of first class raw materials, its fine structure and its purity. CANNA Terra Professional is an organic product that has a homogeneous structure, is 100% natural and is free from damaging viruses and potting mix diseases. It has a complex water/air system, which creates the ideal conditions for almost every method of cultivation, and after use it makes an excellent potting mix improver.