There is a little cultural info, here(from the American Iris Society website):
http://wiki.irises.org/Spec/Sp...
Generally....your soil should be "slightly" acid, and lots of humus added....a bag of "peat soil", or, of composted cow manure, will help in both areas. as to planting depth, division, etc. The AIS site has more "cultural" info. I'll post a link to it in another post.
