First week of April even though it runs all month, if we get a couple 60? days of weather they bloom faster and peak mid April for all varieties & color. The general rule are Daffy's are just about done by about the end of the first week of April but I think this will be one of those years when we get to see both in full bloom at the same time. A bicycle ride day is the best!
A link to this year's site: Tulip Festival