LS, I ended up with growing my plant over the past 5 years or so in one container, using bark as a substate. Over the time it has produced a lot of new growths and pseudobulbs every year...I have not split the plant at this point. This year out of the new pseudobulbs from late last year and early this year there have been 17 spikes. My plant has gotten good early to late morning sun and light shade the rest of the day...I let it get close to dry, then I soak it and feed it with 30-30-30 at les than 1/4 strength. It has been a great bloomer although this year we had a lot of leaf hoppers feeding sap out of the plant. Some buds dropped. It is a great plant and has been very florific!
---------- Post added at 10:11 AM ---------- Previous post was at 10:09 AM ----------
It flowers only from the new psuedobulbs since the last flowering period.
Quite frankly I have not paid too much attention to new growths....Just checked. One growth grows, then sends up a spike, then another grows and I assume sends up a spike later in the year or in the next summer. My plant is very compacted! So I have several growths ready to send up spikes for next year. Some, I can see have come from both sides of a pseudobulb.