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Named from the Greek for rainbow. It symbolises life and resurrection. It is also thought that the French fleur-de-lys is a representation of this flower.
Genus of about 300 species of upright rhizomatous or bulbous perennials from a wide range of habitats in the northern hemisphere.
Rhizomatous irises have stout rootstocks on or very close to the surface. Bearded irises have rootstocks on the surface, beardless have them just under the surface. The bulbous irises, which also have fleshy roots, fall into 3 groups, Reticulata, Juno and Xiphium.
Water irises (Laevigata) thrive in damp places and include the UK native I. pseudacorus, the yellow flag.
Our other native, I. foetidissima, stinking iris (curious rather than stinking) or gladdon is a dull blue or buff-yellow flower of hedgebanks, damp woods and sea cliffs.
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
Evergreen - fans of strap-shaped, glossy, dark green leaves to 45cm (18in) long
Height - 45cm (18in)
Spread - to 50cm (20in)
Bulb/Corm or rhizomatous perennial - rhizomatous, Crested iris which spreads by surface rhizomes. each branched stem produces 3 or 4 flattened and frilly white or pale lavender-blue flowers 4-5cm (1½-2in) across in succession. Falls have purple patches and orange crests
Herbaceous - Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.
Very hardy - Hardy in the severest continental climates including exposed upland locations in the UK. Plant can withstand temperatures < -20 (-4°F)
Caution, toxic if eaten, may cause skin allergy or irritant - These plants are toxic if eaten and may also cause a skin allergy, rash, irritation to eyes and skin.
Additional Features - Pests & Diseases - - slugs, snails, sawfly larva, aphid-borne viral infection, bacterial soft rot (affects rhizomes)
Place of origin - central China, Japan
Hardiness - Fully hardy -
Seasonal Interest - Spring -
Soil Conditions - Fertile moist well-drained soil - - humus-rich.
Wildlife - Rabbit Resistant -
- Dividing Herbaceous Perennials - Video Tip ondemand_video
- Spring Planting Osteospermums - Video Tip ondemand_video
- Dividing Summer Perennials - Video Tip ondemand_video
- Dividing summer flowering Hemerocallis - Video Tip ondemand_video
- Summer propagation - Video Tip ondemand_video
- Self-seeding aquilegia - Video Tip ondemand_video
- Supporting Plants - Video Tip ondemand_video
- Dead heading meconopsis - Video Tip ondemand_video
- Dead heading Delphiniums - Video Tip ondemand_video
- Feeding herbaceous peonies - Video Tip ondemand_video
to 50cm (20in)