I am just beginning with orchids and was about to repot this new orchid. I was researching if this was best time to repot and discovered that same spike on mine. Should I wait to repot from 2 1/2" pot?
Once the spike is done growing, then the nodding bud should open up in about 1-2 weeks. Some develop quite slow, but most of these open up in one week or so.
Then it takes another week or longer for the flower to fully extend.