Flower bulbs need a good, long, winters sleep. Like some people we know, if they wake up before they are fully rested, they get kind of cranky, and then they don’t bloom well at all.
Actually what happens is during a mild winter, the soil stays too warm, and the bulbs begin to come out of dormancy early. They start to grow, and once the tips emerge above the soil line, they are subject to freezing if the temperatures dip back down below freezing. And that’s usually what happens. After the bulbs have emerged, they freeze and then don’t bloom at all, or if they do it’s a very sad display.
Another reason this happens is because the bulbs are not planted deep enough. They may have been deep enough when you planted them, but as the soil goes through the freezing and thawing process, the bulbs can actually work their way up in the ground. One way to keep your flower bulbs sleeping longer, which will protect them from freezing, is to mulch the bed.
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