When "forcing" bulbs to flower in pots (those ones you've been seeing at the stores since late January), growers pot them in fall and then chill them at a specific temperature ABOVE 32 deg for a specific length of time. This tricks them into thinking they've gone through winter and then they readily grow and bloom. It can be done at home if you have a cold room or a spare refrigerator. If you want to try chilling and forcing them, this link on Forcing Bulbs is excellent.