I have had a 5" BLC Ann Cleo for just over a year now. It has grown 3
pseudobulbs in that time - the first blooming, the second not and the
third still possibly. There is now a fourth started. There are now 3
leads on the plant and they have reached the edge of the pot. It
seems to be constantly growing bulbs but I have yet to see a new root.
The visible roots don't look in too great shape but the plant is
otherwise thriving - healthy erect foliage with no sign of wilting.

So why won't it grow new roots??