It must not eat stray cats....or they wouldn't keep using my iris beds for a litter box !! Immortality suffers from lots of "bad press", I'm afraid ! Some deserved, and some not! To start with...it's white, and I think most white iris are thought of as "rather bland", by lots of folks.....then there is the poor form....while it seldom actually falls over, the stalks grow every direction but straight up !, the flowers are "bunched" on the stem ( I guess you would call it 'poorly branched"?). On the plus side, it is a pretty darn good rebloomer, for most areas.and.it is about as close to bullet proof as you can bet, as nothing seems to stop it from blooming in the spring.
I'm not "big" on white iris, but Immortality will always grow in my garden, just because it reminds me of ME, in a lot of ways...bland, not too showy, poor posture...but kinda' dependable
! And even though I'm not big on white...it sure makes the other colors "pop"when they are next to a white one !......Arlyn