Iris japonica
fringed iris
A rhizomatous perennial forming fans of glossy evergreen foliage. Branched stems to 45cm bear white or pale blue flowers 4-5cm in width, the fringed falls spotted with deep purple, with orange crests
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drained, Poorly–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Orange Purple White | Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
- Partial shade
Aspect
West–facing or South–facing or East–facing
Exposure
Sheltered Hardiness
H4Botanical details
- Family
- Iridaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Tufted
- Potentially harmful
- Harmful if eaten. Wear gloves and other protective equipment when handling
- Genus
Iris may be rhizomatous or bulbous perennials, with narrow leaves and erect stems bearing flowers with 3 large spreading or pendent fall petals, alternating with 3 erect, often smaller, standard petals, in late winter, spring or early summer
- Name status
Correct
- Plant range
- China, Japan
How to grow
Cultivation
Grow in moist, humus-rich soil in a sheltered position in sun or partial shade
Propagation
Propagate by seed sown in pots in a cold frame in autumn or spring. Propagate by division of rhizomes from midsummer to early autumn
Suggested planting locations and garden types
- Patio and container plants
- Rock garden
- Flower borders and beds
- Cut flowers
Pruning
Remove any dying foliage in autumn, old flower stems can be cut down after flowering
Pests
Diseases
May be susceptible to aphid-borne viruses, bacterial soft rot and grey moulds; see Iris diseases
Get involved
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