david sanders grow painfully slow. a few fresh roots out of the pot are a good sign its growing. otherwise you might not notice. I myself would just let it be and grow some more. David Sanders do not like the roots disturbed. It needs lots of light and multiple mature growths to bloom from the dry sheaths. The sheaths do dry out and may not ever bloom.
I plant mine in dyna rok bark and charcoal equal amts of each... 33 1/3
. Im like a broken record when it comes to mix.