Douglas Iris flowers
(Photo courtesy of NetPS Plant Finder)
Plant Height: 16 inches
Flower Height: 24 inches
Spacing: 30 inches
Hardiness Zone: 7b
Other Names: Pacific Coast Iris
This knee high, native ariety does well in coastal environments, but also thrives elsewhere with some attention; attractive lavender and purple blooms with yellow signals over clumping green foliage; great as a low groundcover
Douglas Iris features showy lavender flag-like flowers with purple overtones and a yellow blotch at the ends of the stems from early to late spring. The flowers are excellent for cutting. Its sword-like leaves remain dark green in color throughout the season. The fruit is not ornamentally significant.
Douglas Iris is an herbaceous perennial with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.
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;
Douglas Iris is recommended for the following landscape applications;
- Mass Planting
- Border Edging
- General Garden Use
Planting & Growing
Douglas Iris will grow to be about 16 inches tall at maturity extending to 24 inches tall with the flowers, with a spread of 3 feet. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 30 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 prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil type or pH, and is able to handle environmental salt. It is somewhat tolerant of urban pollution. This species is native to parts of North America. It can be propagated by division.