What's in the nutrient solution?
Hey guys, I'm going to take the plunge and move some of my orchids to S/H. I'm going to use the plastic-pot-with-holes-and-a-resevoir-method. I'm just unsure about the nutrient solution, everywhere I read about MSU... If I can't find that, is it ok to use a general low urea orchid firtiliser at lower concentrations?
If yes, do I then use just as I would the normal nutrient solution, then just flush out once or twice a month with clean water? As I understand it, you always give orchids in S/H some form of nutrient, never just clean water (unless it's winter), or am I way off the mark?
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