In the past, I'd only ever gotten one or two spikes at a time, despite the size of the plant. I did figure I was losing out on some spikes having it grow outside in winter, tho I figured the lack of light where it is was the culprit - but after the warmer than usual winter, it came up with ALL these spikes, so I guess the usual winter temps are the cause of lack of spikes on growth maturing in winter ...
Steve, I fertilize once a week (3 weeks a month, flush the media the 4th week), with Better-Gro Orchid Plus (20-14-13), half a teaspoon per gallon of water.