The Darwin Hybrid Tulips were created by crossing the Fosteriana Tulips with the old Darwin Tulips (now part of the Single Late Class). Among the tallest of all tulips (18 to 30 Inches tall), Darwin Hybrids offer big, showy flowers that stand out in spring gardens. Blooms can reach 6 inches in diameter when fully open!Because of their long stems, lovely pyramid shape, and brilliant colors, Darwin Hybrid Tulips are often considered the very best type of tulip to raise for cut flowers. However, there are definite advantages to growing them for beds and borders, especially in areas where they can be sheltered from strong winds.Unlike many types of tulip which only look good for the first couple of years, Darwin Hybrid Tulips will often come year after year (provided you don't cut the leaves off after blooming). As a result, you will sometimes hear them called "perennial" tulips. Darwin Hybrid Tulips flower late, in May so you may want to plant along some earlier tulip varieties so you enjoy tulips throughout the entire spring season.