I didn't know about this either until our first house, which was loaded with irises. I had a neighbor suggest it. If too crowded, they don't bloom as well. Actually, more varieties than not, do have some sort of smell. I've had them smell like perfume, lemon cookies, butter cookies, grapes and more, but don't remember.
Question for any of you out there that might be experts with this flower. Can they be brought indoors, say to a sunroom, and get them to bloom in the house? I'd like to try this in my sunroom throughout the year. I have a feeling they have a particular bloom cycle.
The beach gives me my sunny disposition, the Son keeps it there.