Tall Bearded Iris 'Blue Shimmer': A 1942 Sass Classic

Tall Bearded Iris 'Blue Shimmer'

Hybridized by Sass and registered in 1942, Iris 'Blue Shimmer' is a World War II-era tall bearded iris from the legendary Sass brothers (Hans and Jacob) of Nebraska. Their breeding program laid the genetic foundation for virtually all modern tall bearded irises. This 1942 introduction carries the shimmering promise of its name in a historic blue package.

Botanical Classification

• Family: Iridaceae (eye-rid-AY-see-ee)
• Genus: Iris (EYE-ris)
• Cultivar: 'Blue Shimmer'
• Type: Tall Bearded Iris (TB) — historic

The Sass Brothers' Legacy

Hans and Jacob Sass, farming near Lincoln, Nebraska, conducted one of history's most influential iris breeding programs (1920s–1950s). Their seedlings—selected for cold hardiness, vigor, and clean colors—became the parents of countless modern TBs. 'Blue Shimmer' (1942) emerged from this program during its most productive period, carrying the Sass signature: clear, intense blue pigment and rugged constitution.

1940s Blue Iris Characteristics

Wartime TBs like 'Blue Shimmer' typically showed: elegant but narrow petals (by modern standards), minimal ruffling, 2–3 branches, 4–6 buds, good substance for the era, and often delightful fragrance. The "shimmer" suggests a blue with a luminous quality—perhaps a metallic sheen, a pearlescent finish, or a color that shifts in light. Sass blues were renowned for clarity and lack of muddiness.

Historical Garden Value

Growing 'Blue Shimmer' connects the gardener to the Sass legacy—the genetic wellspring of modern TBs. Culture: standard TB, though historic cultivars often tolerate heavier soils. Invaluable for: historical collections, Sass lineage gardens, breeding programs seeking foundational genetics. A cultivar that still shimmers across eight decades—a testament to the Sass brothers' enduring vision.