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Spring-flowering bulbs in Iowa may be getting confused with the unusually mild winter this year and some are experiencing early growth. Iowa State university Extension and Outreach horticulturists say tulips, daffodils, and other spring-flowering bulbs normally emerge in March or April, however the mild weather may encourage premature growth. The emergence of foliage usually happens on the south and west sides of buildings, where sunlight is reflected off of the ground. Pella is starting to see some of this, far ahead of their annual Tulip Time. Also, heated basements can make the soil near homes relatively warm. If foliage of these plants encounters a return of Iowa’s winter, cold temperatures or snow, they’ll be able to tolerate it and the cold weather will discourage additional growth.