A warm winter has driven tulips in the Skagit Valley to bloom earlier than usual, with all four farms opening to visitors in late March. Brent Roozen, a Roozengaarde tulip farmer, said the fields are still in the early stages of the bloom and expect solid color by the end of April. The festival's impact is significant, generating $55 million in revenue. The early bloom is also due to a wet stretch during March, which has made it more difficult to keep fields dry.