I like the beautifully variegated leaves more than the flowers, although their fragrance is worthwhile and I cut them to enjoy inside the house.
As with Tall Bearded Iris, I have grown this successfully for many years in Zones 5, 7 and 9. It, too can be subjected to the rot caused by the holes eaten by the Iris borer. If you have wilting problems, dig up the root [rhizome]; you may see the pitting of borer holes [and the little charmers themselves] but you will definitely smell the rot. If any solid rhizome and root remains, it can be dried in the sun, then replanted, but in heavy soil, chemical control is the only solution short of building a very high, raised bed of gravel, topped with a heavy layer of sand, which might work.
Region: Pacific Northwest
Planted in full sun and endures some drought. The lovely leaves are so attractive and then to bloom each year with such an exquisite fragrance is a plus.
Sited where morning sun transforms the yellow variegation, this Iris is magical. Doesn't seem to mind the root competition of a lacebark elm either. The lavender flowers are not the reason to grow this Iris; it is all about the striped foliage. Underplanted with Sedum alboroseum 'Mediovariegatum' to keep the yellow variegation going.
:-( :-( I've tried this plant on several different occasions in its "ideal" site -- bright sun to part shade, moist soil -- and it's slumped, and shriveled, and usually died. It's certainly never bloomed. It's a loser in my yard.
Region: Mountain West
beautiful blooms, though some years it barely blooms. I haven't quite figured this one out yet, though I love it all season long. The foliage is what saves this iris (for me) when it isn't blooming. I like the shape of the clump
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