Although I have success growing many weird, wondering and certainly "more tempermental" perennials, one that I have been having problems with is the common run-of-the mill purple bearded iris.....I just can't them to bloom well (or at all).
I have them in a sandy, well drained spot at the side of my house which rec'vs a good 5 plus hours of hot, intensive sunlight each day. Lots of good foliage, though no flowers. I don't fertilize them (except for maybe once in the spring) and even tried dividing them a couple of years ago to no avail.
All my neighbours seem to grow them successfully in situations which very from full sun to almost full shade. And while I really appreciate the foliage, I would like to see at least a little flowering.
Anyone have any suggestions?