Generally speaking, sympodial orchids only bloom once from a growth, but that's not always the case. Some dendrobiums, for example, will bloom for a few successive years, and some species will rebloom repeatedly from the same spikes, even though they look to be dead.
Again, the blooming/growing question can be answered with "it depends". Some grow mature, then bloom. Some bloom then form new growths, some grow, mature, then won't bloom until the following year.
In the case of an odontoglossum, I thing you'll likely to see flowering occurring after the growth has matured, and it will likely only bloom one time per growth. Sometimes that one time might be with two spikes, but it's a single blooming period.
|