Phal 'Yin's Black Eagle'

[dbarron]

This cross has a lot of violacea in it (67%) and was my first violacea type. I acquired the tiny plant in 1 1/2 inch, maybe 2 inch, clear plastic packed with moss in September from Hausermann, it was advertised as requiring 1 or 2 years to reach blooming size.
However, when watering this morning, I saw the spike coming out of the base. I was totally in shock, because I expected it to not happen till summer anyway, even though I felt like the leaf span has doubled in the short time I've had it. The leaf span is about 6 inches from leaf tip to leaf tip.
I've just been watering it when the moss is almost dry, and only fertilized twice because I figured (from reading) it shouldn't be growing or doing much in the winter. Oh, it's on a south-facing windowsill in my kitchen, not a greenhouse. However, during winter, there's only a bit of direct sunlight coming in the south window, it will begin being more (and require moving the plant) as the spring comes on. For the last couple of weeks, I've been thinking it needs up-potting because the clear plastic container is bulging from roots now.
So, was I underexpecting, or is this normal?