Pro-Mix HP
Pro-mix HP is a peat based medium. HP stands for High Porosity. Pro Mix HP is formulated to provide high air-capacity and low water-retention and is designed for use with water sensitive plants. Pro-mix HP can be combined with bark, diatomite, perlite or other ingredients in orchid mix. Growing orchids in a soiless mix such as Pro Mix HP is casually referred to as growing orchids in mud.
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