Iris Superstition forms upright fans of gray-green, sword-shaped leaves beneath branched flower stems. Fragrant, deep purple-black blooms open with maroon undertones and dark blue-black beards.
Grow it in full sun in fertile, well-drained loam or sandy soil, keeping the rhizomes uncovered by mulch. Divide established clumps after flowering, remove spent stems, and keep all parts away from people and pets who may ingest them.