The Professional Substratum for Surphinias is made from top-quality peat, bark humus and clay the pH reaction of which has been properly treated. It is highly enriched with all the basic nutrients and trace elements (B, Cu, Mn, Zn and especially Fe) in the chelate form. The clay in the Substratum stabilizes the pH reaction at a lower level which is ideal for growing petunias. It contains additional iron to prevent chlorosis.

Packaging: loose, big bale, 75 l