The Heart of Tulip Country: Bollenstreek The most famous tulip-growing region is the Bollenstreek, also known as the “Bulb Region,” located between Haarlem and Leiden and stretching toward the North Sea. During peak bloom, this region becomes a patchwork of bright colors—reds, yellows, pinks, and purples arranged in perfect rows. This area attracts thousands of visitors every year. Yet, as Panis-Ringersma notes, locals are used to the flowers—it’s often the tou