Den. Nobile: Love Memory Fit - Growing Period and Fertilizing

[AdeleDS]

I have a den. nobile hybrid and the care notes I've found in the Dendrobium Alliance suggest that you should not start fertilizing until the growing season. Now, I have been wintering this plant by leaving it in a cool area overnight and bringing it up to a warmer area by day, and watering when the cane starts to shrivel.

My temperatures right now are about 3-5C. at night and up to 10C during the day, and now I see I have little nubs along the side of the cane (there is only 1 real cane) that I think are flower buds.

Questions - Do you fertilize when the buds are growing, or do you wait until after the flowers fall? When is this thing supposed to grow (it has not grown at all since I got it last August). Should I stop putting it in a cool area at night now that I have buds?