Pacific Coast Iris Hybrids

Pacific coast native iris and their hybrids are among the easiest of irises to grow in the climate of the Northwest. All do best in acid soils (I. douglasiana will also tolerate some lime). They need good drainage, and are quite drought tolerant when established. Iris douglasiana occurs naturally in moist soils as well as those that are well-drained so it is the most flexible in terms of soil conditions. Plants will bloom well in full sun to part shade. Dappled sunlight all day or sun for a few hours is adequate; more sun = more flowers.

Hybrids such as the one pictured ("Fault Zone") are available in a wide range of brilliant colors with spectuacular markings and blends. Many are iridescent and established clumps can be showstoppers in the garden. Plants can be left undistrurbed for many years, increasing their show as time goes on. Normally hardy in the cool climates of the western Pacific Northwest, mulching during those infrequent "Arctic Express"es is helpful, especially the first year after planting.

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