From Schreiners Gardens 1954 Iris Lovers Catalog: To many flower lovers, the chief glory of Iris are the blues. Few other flowers can boast of this heavenly coloring. Here is a blue Iris of extra large size and exquisite purity which we feel takes its place alongside Helen McGregor. A seedling of Chivalry and Snow Flurry. Blue Sapphire makes a magnificent clump exhibiting floriferousness and stalwart poise. Its charming, insouciant ruffling belies its extra heavy substance. A superb background Iris that the wind won't blow over nor rain injure.