The book you mention is a good one! I have it and
the one Bill Shear wrote, "The Gardener's Iris Book" and between the two, I get
answers to almost everything I need to know. I want to add two others to my
collection, though, and they are: "The Japanese Iris", by
McEwen, and "The Iris", by Brian Mathew. My iris resource shelf will be
complete then, I think. Then , add this site, and I should be able to grow my
iris to perform their best in my garden!