About
Iris winogradowii, the Winogradow iris, is a compact, bulbous perennial to 10 cm with upright, narrow foliage and a single, pale-yellow flower to 7 cm across with green spotting on the falls in early spring. One of the daintiest and most exquisite of all the early spring bulbous irises.
About the genus
Iris are rhizomatous or bulbous perennials with narrow, often sword-shaped leaves and erect stems bearing flowers with three large, spreading or pendent fall petals alternating with three erect, often smaller, standard petals in late winter, spring or early summer. One of the most varied and spectacular of all plant genera, encompassing everything from tiny bulbous species to tall bearded border irises.
Growing conditions
SunlightFull sun
Soil typeChalk, Loam, Sand
Soil pHAlkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectEast-facing, South-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH7
Plant details
Plant typeBulbs
HabitClump forming
FoliageDeciduous
HeightUp to 10 cm
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
Native toCaucasus
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