Quality of            
Growing Media 
Matters

RHP certified substrates provide an optimal start of the culture. With the RHP quality mark you increase the security that the substrate complies with the quality requirements concerning for instance water uptake, air content, pH, EC and nutrients. It also offers more security that the substrate is clean and that it can be used without risks for the culture. The RHP quality mark monitors the quality of growing media in the chain, from raw materials production until processing and delivery at the company of the user.

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RHP Certified for Horticulture coir products, peat, growing media (to: all certified products)