This very special mixture will enable you to create beautiful plantings of colorful Dutch Darwin Tulips. This mixture, packed right in the heart of Holland’s bulb-growing area and rushed to America, includes prize varieties not available in sufficient supply to offer individually. Top quality 12+ cm. bulbs will produce enough bountiful blooms to fill your home, or that of your friends’, with bright bouquets of dazzling solids and amazing bi-colours. Mature Height: 20-22 inches tall. Hardy in zones 3-7; warmer zones will need to refrigerate bulbs before planting.