I was using MSU which we bring in for our society as it is supposed to be a well balanced formula. But I recently cared for 2 C. intermedia plants for a friend. I happened to have 3 seedlings from the very same compot myself. I was shocked to see that hers looked several years ahead of mine and were blooming whereas mine have never bloomed yet. I actually bloomed hers here in the couple months I had them here. They were likely alwready headed that way so can't take full credit. There is the fact that my greenhouse is kept quite cool in winter so mine may go semi-dormant and she grew hers in her home. But it was a very disturbing comparison. So I asked what she uses and it is Plant Prod 20-20-20 Ultimate (inexpensive and found at Walmart here). Needless to say I bought some and am using it to see if I get better results. Not to say MSU doesn't work, but since all those seedlings were from the very same pot, it was a huge size difference. In Vancouver you can pick up seaweed solutions easily as there are many hydroponics places there. It works great for getting roots to grow.
I grow and bloom many different orchids on MSU but it seems the Plant Prod works just fine also and maybe better.
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