About
This compact, bulbous perennial with erect, narrow, grey-green foliage. Ice white flowers with pale blue edges appear in late winter to early spring.
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
AspectEast-facing, South-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH7
Plant details
Plant typeBulbs
HabitClump forming
FoliageDeciduous
Height0.1-0.5 metres
Spread0-0.1 metre
Time to full height2-5 years
Suggested usesCity and courtyard gardens, Cottage and informal garden, Gravel garden, Patio and container plants, Rock garden
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
CultivationGrow in well-drained neutral or slightly alkaline soil, preferably in a sunny spot. Good for naturalising. See bulbs: naturalising and bulb iris cultivation for further advice
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