Orchid Maintenance MediumContains Micronutrients, Macronutrients, vitamins, sucrose, peptone and MES buffer required for orchid maintenance. Also contains Charcoal and AgarAdd auxins and cytokinins as needed.Provided as 1 unit to make 10L, 25L, or 50L of medium, or as 10 units to make 1L of mediumPlant tissue culture testedWorking Concentration: 35.31 g/LpH: 4.75–5.75Partially soluble in water