Answer: Most bulbs have a pre-chill requirement before they can develop roots, foliage and flowers. Freezing isn't necessary, but cold-storage is. This is best accomplished by keeping them in a paper bag in the refrigerator for the specified number of weeks, which varies by bulb type. For instance, gardeners in California store their tulips in a refrigerator for 6-12 weeks prior to planting. If you decide to pre-chill bulbs, let us know which ones and we'll provide pre-chilling requirements.
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