Tulipa 'Clearwater' is a modern variety with pure white flowers atop tall 20-inch stems, making it perfect for a cut-flower arrangement. The breeder is J.M. Brouwer-Zeinstra from the Netherlands. It is a single late tulip, one of 15 classes of tulips that vary in bloom time and flower shape. If several classes of tulips are planted together, there will be continuous bloom for several weeks in early- to mid-spring.