The stem with leaves on my big Vanda is at least 4ft. tall, so when I cut it, the top will still be huge, and the bottom section will still have a dozen pairs of leaves plus a good sized keiki. I really should have cut it last summer, but it was blooming or getting ready to bloom every time I thought about it.
What I'm really wondering about is what constitutes a "viable root" on a Vanda? Are they still viable if they are shrunken and/or no longer turn green, or take forever to turn green when they are watered? Are they still viable if they are fat and firm, but covered with green algae?
A couple of my orchid books do recommend root pruning when re-potting other types of orchids, but I can never bring myself to cut off a plump, healthy looking root.
