Not Quite White Siberian Iris (Iris sibirica ‘Not Quite White’)

Not Quite White Siberian Iris (Iris sibirica ‘Not Quite White’) is an elegant hardy perennial prized for its soft creamy-white blooms, graceful upright foliage, and exceptional cold hardiness. Blooming in late spring to early summer, this refined Siberian iris brings brightness, texture, and timeless beauty to perennial borders, cottage gardens, rain gardens, and waterside plantings.

The delicate flowers feature creamy white petals accented by subtle yellow markings near the centre, creating a sophisticated display that complements both colourful and monochromatic garden designs. The blooms rise above slender blue-green foliage that remains attractive long after flowering has finished, providing season-long structure and movement in the landscape.

Its clump-forming habit gradually expands over time, creating impressive drifts while remaining neat and low maintenance. The flowers attract bees, butterflies, and other pollinators, making it an excellent addition to wildlife-friendly gardens. Siberian irises are valued for their adaptability, disease resistance, and ability to thrive in colder climates with minimal care.

In Alberta, Not Quite White Siberian Iris performs best in full sun to partial shade with fertile, moisture-retentive, well-drained soil. It tolerates wetter conditions better than many other iris varieties and adapts well to a range of garden settings once established.