Iris sibirica 'Grape Truffle' (Dunlop, 2007) Tetraploid, mid-late season bloom with occasional repeat. Grape violet, darker at signal area with diamond dusting at first bloom. Falls have flowing ruffles and brown hafts. Flowers held well above lower foliage. Sometimes a branch with 2 to 4 buds. A sumptuous and elegant color. 30", Z4-9.