Tb. Midseason bloom. Color Class-B1D. ‘Dymia’ x ‘Narain’. Fairmount Gardens.
From Fairmount Gardens catalog, 1946: GULF STREAM M. When it came to the naming this deep-blue iris, Mr. Fay took. the suggestion of his brother who is in the Merchant Marine for he said that the color reminded him of the deep intense blue seen in the wintry waters of that mighty ocean current, the Gulf Stream. A deep blue iris that has won high acclaim from iris enthusiasts in many parts of the country. It is an absolute self with no haft markings, even the beard is blue. While all dark blue iris have some purple in their pigment, this one is much more blue than any very dark iris that I have seen. The medium sized flowers are well shaped and have exceptionally firm texture. Vigorous growth throroughly hardy. H. C., A. I. S. 1945. 37″. $15.00.
From Williamson 1952 :”A smooth very even deep blue with a blue beard and no haft markings. Thre is very little purple to mar its clear deep blue coloring. Midseason.”