I have never pre-chilled any bulbs before planting. If I pre-chilled them in our refrigerator, my DH would have me committed to the looney bin! Wished we did have an extra refrigerator in garage. Have a small freezer. Check the gardening blog by Kevin Lee Jacob of NY. It's called A garden for the house or A house for the garden. I get the name of his blog mixed up..you will see pics on his blog of bulbs in pots in his extra refrigerator being pre-chilled. I'd think the weather in NY would be cold enough that one wouldn't need to pre-chill bulbs. Maybe in warmer climates like the South and in California, Arizona and Nevada, they would need to pre-chill theirs.