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This plant is said to grow outdoors in the following regions:
Glen Avon, California
Hesperia, California
Pedley, California
Rubidoux, California
Sunnyslope, California
Olathe, Kansas
Brookings, Oregon
Harbor, Oregon
Desoto, Texas
In zone 8a, Dutch Iris bulbs start blooming in late April. Mine have come back for the last three years.
In zone 8a, Dutch Iris bulbs start blooming in late April. Mine have come back for the last three years.