Iris germanica ‘Immortality’
‘Immortality’ is one of the most beloved reblooming bearded irises, prized for its elegant pure white blooms and sweet fragrance. This standout perennial produces a stunning display of large, ruffled flowers in spring and often blooms again later in the season, extending the beauty of the iris garden.
Graceful flower stalks rise above classic upright, sword-like foliage, making ‘Immortality’ a striking addition to perennial beds, borders, and cottage gardens. Its crisp white blooms pair beautifully with other colorful perennials and are excellent for fresh-cut arrangements.
This hardy iris thrives in full sun and well-drained soil, where its rhizomes can stay warm and dry. Plant rhizomes shallowly with the top portion slightly exposed to prevent rot. Once established, ‘Immortality’ is drought tolerant, easy to grow, and long-lived, providing reliable blooms year after year.
Plant Details
Light: Full sun (5–6+ hours daily)
Water: Moderate during growth; drought tolerant once established
Soil: Average, well-drained soil
Spacing: 12–20 inches apart
Height: Typically 30–36 inches
Bloom Time: Spring with repeat bloom later in the season
Hardiness: USDA Zones 3–9
Garden Highlights
• Large, fragrant pure white blooms
• Reblooming variety for extended seasonal color
• Classic bearded iris form with ruffled petals
• Excellent for borders, perennial beds, and cutting gardens
• Hardy, long-lived, and low maintenance
Care Tip: Divide iris clumps every 3–4 years in late summer to maintain vigor and ensure abundant flowering.
