Next comes the cold treatment. You'll need to find a dark place that stays between 35 and 50 degrees F for the next three months or so. Depending on your climate, it could be an unheated attic, cellar or garage, or a cold frame outdoors. It's important that the bulbs don't freeze. A refrigerator is an ideal place to chill bulbs, if you have the space. Just be sure to the potted bulbs away from stored fruit, as ripening fruit emits ethylene gas that can harm the bulbs. Check the soil moisture every few weeks; stick your finger in the soil and if it's dry down a few inches, water the soil lightly. Don't soak the soil or the bulbs may rot.
Bringing Into the Warmth and Light
Begin checking the pots after about two months. As soon as you see emerging shoots, they're ready to bring into the warmth. (Bring them in after three months even if you don't see shoots.) Place the pots in a bright, cool room (55 to 60 degrees F) and keep the soil slightly moist. There's no need to fertilize; the bulbs contain all the "food" the plants need to grow and flower.