About
This bulbous perennial, to 12cm in height, with erect, green, strap-like leaves and violet-blue flowers in spring; the falls have a white speckled throat and a yellow central band.
About the 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
Growing conditions
SunlightFull sun
Soil typeChalk, Loam, Sand
Soil pHAlkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing, East-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH7
Plant details
Plant typeBulbs
HabitColumnar upright
FoliageDeciduous
Height0.1-0.5 metres
Spread0-0.1 metre
Time to full height2-5 years
Suggested usesCottage and informal garden, Gravel garden, Patio and container plants, Rock garden, City and courtyard gardens
ToxicityHarmful if eaten. Wear gloves and other protective equipment when handling. Pets: Harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Care notes
CultivationGrows best in full sun in well-drained soil, or in a bulb frame. See bulb iris cultivation
PruningNo pruning required
PropagationLift and divide bulbs in early autumn; see bulb propagation
Pest resistanceMay be susceptible to slugs, snails and thrips
Disease resistanceMay be susceptible to aphid-borne viruses, bacterial soft rot and grey moulds; see Iris diseases