Sisyrinchium idahoense var. idahoense

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USDA Hardiness zone: Zn4b -20º to -25ºF

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Sisyrinchium idahoense var. idahoense

Idaho blue eyed grass is a widespread perennial that forms colonies in full sun, in many soil types, including vernally wet sites. To 18″ tall dark purple flowers open in bright light and close with cloudiness or dark. The blue green foliage is distinctively flat and the plant produces a procession of flowers for 2-3 weeks.  Deep purple with a yellow eye and about 1/2″ wide. An integral part of a Willamette valley meadow and only adaptable to full all day sun. Spreads by seed and  colonies that increase to form a slender clump.  Excellent pollinator perennial and is visited by a wide variety of insects.  Found in field that have not been invaded by invasives. Typically its found between native clumping grasses such as June Grass (Koeleria macrantha) Roemer’s Fescue (Festuca roemeri).and with other perennials of the meadow. It can be found from riparian to upland sites. Common associated plants are Carex tumulicola, Dodecatheon hendersonii, Ranunculus occidentalis, Dichelostemma congesta, Clarkia amoena, Camassia, ( C. quamash, leichtlinii ). Full sun, no shade. Water to establish the first season then none in subsequent year. Goes summer dormant and will awaken the following February. Oregon native plant

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