Siberian Iris 'Sky Mirror'

Siberian iris ‘Sky Mirror’ is a clump-forming perennial with pale blue flowers, darker blue centers, and yellow signals. The American Iris Society records the cultivar at about 35 inches tall and flowering in midseason to late season; its cool colors suit waterside plantings and mixed perennial borders. ## Flowers and placement The named selection is listed with pale sky-blue standards and falls, deep navy centers, and yellow signals. Its upright foliage forms a neat, grassy clump that adds structure before and after bloom. Allow space for the mature clump, and use the flowers alongside yellow or white spring and early-summer companions. The precise bloom date varies by climate. ## Growing conditions Siberian iris grows in full sun or partial shade and benefits from reliably moist soil. It tolerates ordinary garden conditions when watered during dry spells; avoid letting a new planting dry while it establishes. The cultivar is listed for USDA zones 3–9. Species-level references describe a wider range of possible mature size, so the cultivar measurements are the useful guide for this selection. ## Sources [American Iris Society Iris Encyclopedia: ‘Sky Mirror’](https://wiki.irises.org/Sy/SySkyMirror) · [North Carolina Extension Gardener Plant Toolbox: Iris sibirica](https://plants.ces.ncsu.edu/plants/iris-sibirica/) · [Walters Gardens: ‘Sky Mirror’](https://www.waltersgardens.com/variety.php?ID=IRSSK) ## Maintenance Water during prolonged dry weather, especially in the first growing season. Remove spent flower stems and dead foliage. Divide crowded clumps in spring or after flowering, keeping several healthy fans with roots on each division, then replant at the former depth.