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(Japanese Iris, Yezo-nishiki Japanese Iris)
The spectacular double flowers of ‘Yezo-nishiki’ are true violet-blue bordering on cobalt. The enormous, flat-topped blooms have a contrasting yellow splash at the base of each petal.
Japanese iris originates from China, Russia, and Japan but has been cultivated most by the Japanese. It was first popularized in the West in the late nineteenth century when it was most prized as a collector's plant. Now there are hundreds of fine cultivars available of eastern and western origin.
This...
Larry Allain, USDA/ARS
(Giant Blue Iris)
One of the more showy of the Louisiana iris species, giant blue iris is endemic to a small area from Louisiana to eastern Texas where it thrives in wet ditches, bogs and other wetlands. It has enormous violet-blue flowers that are the largest of the southern wetland irises. The vigorous perennial plants spread by rhizomes to form substantial colonies and are deciduous, meaning they die to the ground during the cold winter months, or semi-evergreen.
The long, slender strap-like leaves of this...
Gerald L. Klingaman
(Pale Yellow Flag, Pale Yellow Iris)
The fragrant yellow blooms of this aquatic iris are held above substantial clumps of green strap-like foliage. This vigorous perennial is native to Europe and western Asia, though it has naturalized in temperate regions across the world.
Pale yellow flag resides along the water´s edge and forms clumps that spread via fleshy rhizomes. The green to gray-green foliage is slender, tall and lightly ribbed. In the heat of summer, light yellow flowers appear on sturdy stems held above the leaves....
JC Raulston Arboretum at NC State University
(Pale Yellow Iris, Variegated Pale Yellow Iris)
The fragrant yellow blooms of this aquatic iris are held above substantial clumps of green, yellow and pale green variegated strap-like foliage, though the variegation tends to fade to green as the summer wanes. This perennial originates from Europe and western Asia and the standard form has naturalized in temperate regions across the world.
Variegated pale yellow flag resides along the water´s edge and forms clumps that spread via fleshy rhizomes. The variegated foliage is slender, tall and...
James H. Schutte
(Siberian Iris)
Siberian Iris is a popular and attractive perennial that is native from regions in central Europe through to Russia. It is an adaptable herbaceous plant that develops substantial tall clumps of linear blade-like green foliage. In early summer it displays many beardless iris flowers that appear on tall stems. These may be white, purple, or violet-blue.
Siberian iris grows best in sunny locations and fertile soil with average drainage, but tolerates slight waterlogging. It is quite cold tolerant...
Jesse Saylor
(Harlequin Blueflag)
This beautiful aquatic iris, with its lovely blue flowers, is at home both in the wild and the water garden. It is an exceptionally hardy North American native with a broad northeastern distribution, from the upper reaches of Canada, down to Virginia and west to Minnesota. Harlequin blueflag is a true marginal, thriving both in average fertile soil or shallow standing water.
This robust perennial forms large clumps of long, strap-like leaves that stand upright or arch gracefully. The leaves are...
(Claret Cup Flag, Harlequin Blueflag)
A lovely form of the Northern blue flag iris, 'Claret Cup' adds diversity to the wild and water garden with its unusually-colored flowers of rich, violet-red.
Occurring naturally in bogs and swamps, Iris versicolor is found over a broad range from Canada to Virginia and west to Minnesota. The thick, fleshy roots (rhizomes) of this cold-hardy perennial produce long, narrow, upright foliage with a somewhat arching form. Beautiful, violet-blue flowers bloom on tall stems in late spring.
...
James Burghardt
(Harlequin Blueflag)
This beautiful aquatic iris, with its lovely blue flowers, is at home both in the wild and the water garden. It is an exceptionally hardy North American native with a broad northeastern distribution, from the upper reaches of Canada, down to Virginia and west to Minnesota. Harlequin blueflag is a true marginal, thriving both in average fertile soil or shallow standing water.
This robust perennial forms large clumps of long, strap-like leaves that stand upright or arch gracefully. The leaves are...
Jesse Saylor
(Harlequin Blueflag, Murrayana Blueflag)
This beautiful aquatic iris, with its lovely blue flowers, is at home both in the wild and the water garden. It is an exceptionally hardy North American native with a broad northeastern distribution, from the upper reaches of Canada, down to Virginia and west to Minnesota. Harlequin blueflag is a true marginal, thriving both in average fertile soil or shallow standing water.
This robust perennial forms large clumps of long, strap-like leaves that stand upright or arch gracefully. The leaves are...