About
This clump-forming bulbous perennial to 75cm tall, with erect, velvety, narrowly sword-shaped mid-green foliage and deep, rich purple-blue flowers with white markings appearing in late June to early July.
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
AspectSouth-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH7
Plant details
Plant typeBulbs
HabitClump forming
FoliageDeciduous
Height0.5-1 metres
Spread0-0.1 metre
Time to full height2-5 years
Suggested usesCity and courtyard gardens, Cottage and informal garden, Patio and container plants
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 moist but well-drained neutral or slightly alkaline soil, preferably in a sunny spot where the soil does not dry out. See 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