Sherry, if you go into the "iris" data base, and click on search by characteristics, you can click on TB or others as you are interested, and then click on late, very late, very very late etc. and it will bring up all of the irises that are in those catagories. It's really a handy way to search. You also can add what colors you are interested, and a lot of other things to sort by. Try it out. You'll like it.