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Herbaceous Perennial

Iris Californian hybrids

iris Californian hybrids

Iris Californian hybrids are evergreen perennials, from 15 to 70cm tall, with long, narrow leaves. Unbranched flower stems bear 2-3 flowers in a wide colour range, often with intricate patterns or markings, from mid-spring to early summer

Synonyms
Iris Pacific Coast hybrids

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Clay
Loam
Sand
Moisture
Well–drained
pH
Acid, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Blue Pink Purple Red White Yellow Green
Summer Blue Pink Purple Red White Yellow Green
Autumn Green
Winter Green
Position
  • Full sun
  • Partial shade
Aspect

West–facing or South–facing or North–facing or East–facing

Exposure
Sheltered
Drought resistance
Yes
Hardiness
H4
Botanical details
Family
Iridaceae
Native to the UK
No
Foliage
Evergreen
Habit
Bushy
Potentially harmful
Harmful if eaten. Wear gloves and other protective equipment when handling
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

Name status

Correct

How to grow

Cultivation

Grows best in an acid to neutral soil with added humus in full sun or partial shade. Resents root disturbance so best propagated by seed

Propagation

Propagate by seed or by division

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Patio and container plants
  • Cottage and informal garden
  • Flower borders and beds
Pruning

Remove dead foliage, old flower stems can be cut down after flowering

Pests

May be susceptible to slugs, snails and thrips

Diseases

May be susceptible to aphid-borne viruses, bacterial soft rot and grey moulds; see Iris diseases

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