To fool hyacinths, tulips and crocuses into thinking they've had a cold winter, put the bulbs in the lettuce drawer of your refrigerator (in a brown paper bag, not plastic--it rots them) for 6-8 weeks prior to planting. If your lettuce drawer takes delight, as some do, in regularly freezing lettuce, it's too cold for bulbs; store them on a low back shelf. They must not freeze.

Also beware of fresh fruits that give off ethylene gas, including apples, bananas and pineapples. When these are stored in the same refrigerator with bulbs, make sure they're in airtight bags or containers; if the gas escapes, it can cause flower bulbs to either rot or grow roots and sprout.

After you remove the bulbs from refrigeration, plant them in the ground immediately.