The Tulip is the most popular of the spring-flowering bulbs. It is a perennial that grows from the Tulip bulb. The Tulip bulb contains a stem and the beginnings of the next year’s flower and leaves. In the springtime leaves push up from the Tulip bulbs and through the soil. Most Tulip bulbs have two to six leaves, some species have up to twelve. They can be long and narrow, or they can have more of an oval shape. A single stem sends up a narrow, green bud that opens into a flower. An average length of a stem is 12 inches. Different varieties range in height from short (4 inches) to very tall (28 inches). Most Tulips have only one bloom per stem. Few species have multiple blooms.