I don't grow SW, so I really can't comment on aroma, although I did some searching on the vendor's sites that allow you to search for "fragrant" iris....and it's not in any of their lists, BUT, if beauty is in the eye of the beholder, doesn't it follow that smell is in the nose of the sniffer ? If you have the opportunity, take some extreme close-ups of the haft area, beard, and showing the style arms. Those areas seem to be the best "diagnostic" aids I've found for the "reds'....I've got a TON of "red noids"I'm working on I.D.s for !. Sorry to not be of more help....Arlyn