Iris 'Welfenschatz' (Sib) is a broadleaf deciduous perennial bulb / corm / tuber with green foliage. In spring cream and yellow flowers emerge. A good option if you're seeking something verticillium wilt resistant.
Butter and cream flowers on this delightful and yummy Siberian Iris. Yellow falls and creamy white standards are a stunning combination. The yellow is not strident but as richly pigmented as you can get while still remaining a mellow and easy blender with other colors. So many gardeners don't do yellow but I bet they would do the Welfenschatz.