Alphabetical Plant Listing

Iris japonica (Fringed Iris)

Fringed Iris, Japanese Iris, Fan Iris


Iris japonica (Fringed Iris) is an evergreen rhizomatous perennial with white or pale blue, orchid-like flowers, up to 2 in. across (5 cm), adorned with deep purple and conspicuous orange crests on each fringed fall. Blooming profusely in late spring to early summer, they are borne on branched stems and rise above handsome fans of glossy, sword-shaped, evergreen foliage. Useful under trees, attractive in rock gardens or in flower beds, Fringed Iris works well as a container plant too.

  • Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.
  • Grows up to 10-12 in. tall (25-30 cm) and 12-18 in. wide (30-45 cm). Naturalizes well and spreads by creeping rhizomes without being invasive.
  • Performs best in part shade, in moist, humus-rich, soils. Some tolerance to full shade. Provide a sheltered site.
  • A welcomed addition to beds and borders, rock gardens, containers.
  • Deer resistant.
  • No serious insect or disease issues but watch for slugs, snails, thrips and gray moulds.
  • Remove any dying foliage in autumn, old flower stems can be cut down after flowering.
  • Propagate by seed sown in pots in a cold frame in autumn or spring. Propagate by division of rhizomes from midsummer to early autumn
  • Ingestion may cause severe discomfort.
  • Native to China, Japan

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Requirements

Hardiness 7 – 9
Heat Zones 7 – 9
Plant Type Perennials
Plant Family Iris - Other
Exposure Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 10" – 1' (25cm – 30cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" (45cm)
Water Needs Average
Maintenance Average
Soil Type Clay, Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Poorly Drained
Characteristics Cut Flowers, Plant of Merit, Showy, Evergreen
Tolerance Deer
Garden Uses Beds and Borders, Patio and Containers
Garden Styles Gravel and Rock Garden

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While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 7 – 9
Heat Zones 7 – 9
Plant Type Perennials
Plant Family Iris - Other
Exposure Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 10" – 1' (25cm – 30cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" (45cm)
Water Needs Average
Maintenance Average
Soil Type Clay, Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Poorly Drained
Characteristics Cut Flowers, Plant of Merit, Showy, Evergreen
Tolerance Deer
Garden Uses Beds and Borders, Patio and Containers
Garden Styles Gravel and Rock Garden

Great Plant Combination Ideas with Iris - Other

Guides with Iris - Other

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