Plant Finder Tool
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Stairway To Heaven Iris
Iris 'Stairway To Heaven'
Stairway To Heaven Iris flowers
(Photo courtesy of NetPS Plant Finder)
Plant Height: 28 inches
Flower Height: 4 feet
Spacing: 18 inches
Hardiness Zone: 3a
Group/Class: Tall Bearded
This lovely iris produces radiant white blooms with sky blue falls and white tipped yellow beards; a stunning addition to the perennial border; also excellent massed in groupings in the garden; will quickly form dense colonies
Stairway To Heaven Iris has masses of beautiful white flag-like flowers with sky blue overtones and a yellow beard at the ends of the stems from mid to late spring, which emerge from distinctive navy blue flower buds, and which are most effective when planted in groupings. The flowers are excellent for cutting. Its sword-like leaves remain grayish green in colour throughout the season. The fruit is not ornamentally significant.
Stairway To Heaven Iris is an herbaceous perennial with an upright spreading habit of growth. Its medium texture blends into the garden, but can always be balanced by a couple of finer or coarser plants for an effective composition.
This plant will require occasional maintenance and upkeep, and should be cut back in late fall in preparation for winter. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;
Stairway To Heaven Iris is recommended for the following landscape applications;
- Mass Planting
- General Garden Use
Planting & Growing
Stairway To Heaven Iris will grow to be about 28 inches tall at maturity extending to 4 feet tall with the flowers, with a spread of 24 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 18 inches apart. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years.
This plant does best in full sun to partial shade. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This particular variety is an interspecific hybrid. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.