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Gardening in the Rainy Zone.
Pronounced: EYE-riss reh-tik-yew-LAY-tah
Caucasus, Turkey, Iraq, Iran.
Sunset zones: All zones.
USDA zones: 5-8.
Height: 4-6 inches (10-15 cm).
Late January to mid February.
Bluish-purple with a yellow central ridge; flowers have a violet scent.
Four sided leaf with a blue-green coloring.
Well drained neutral soil although mine grow in acidic soil contrary to recommended cultivation recommendations. A good plant for the rock garden.
I top dress with manure and or compost in autumn.
Divide bulbs when dormant to increase stock. Also it is a good idea to divide bulbs when flower quality declines.
Rainy Side Notes
Plant bulbs 3 inches deep with 3 inch spacing between bulbs.
Some of my plants come up through a Blue fescue (Festuca glauca) which then reminds me to trim the fescue back in order to see the iris.
Photographed in author's garden.