Garden State Bulb Gladiolus Polar Bear Flower Bulbs are imported directly from our farms and growers in Holland. Gladiolus make outstanding floral displays whether in your garden or in a vase. Their sword-like foliage and tall impressive flower stalk, when bunched together make a wonderful addition to your garden. They are excellent as a cut flower and in containers! Gladiolus grow best planted in full sun with well-drained soil.