Answer: Your bulbs are responding to the longer daylengths and warmer temperatures. They're also reasonably cold-tolerant so if the weather gets really cold, the shoots will just stop growing. I've had spring flowering bulbs put on flower buds and then sit in six inches of snow. The flowers waited until the snow melted before opening, and they came through the ordeal without a problem. The leaves and shoots seem to contain a kind of anti-freeze that allows them to winter any weather. Relax and enjoy yourearly-spring blooms when they arrive!
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