Thinning out my yellow iris patch, cannot remember the fancy name for these. Flag will be cut back, rhizomes will vary in size. Will be freshly dug day of order. Limited quantities available The product is a limited quantity of Yellow German Bearded Iris rhizomes suitable for zones 3-10. These outdoor plants thrive in summer and spring with medium to full sun. They are easy to cultivate and have a clumping growth habit, making them a beautiful addition to any garden. The rhizomes are perennial and flower in shades of yellow, providing a splash of color and fragrance to your outdoor space.