Iris histrioides

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<em>Iris</em> <em>histrioides</em> visionspictures.com
Bulbs

A compact perennial bulb, to around 15cm high, with upright, broadly sword-shaped, angled green leaves. Flowers are produced alongside the new leaves in early spring, and are violet blue with white markings and a yellow ridge on the falls

Position

Full sun

Soil Types

Loam, Sand, Chalk

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

Loam Sand Chalk
Moisture
Well–drained or Moist but well–drained
pH
Neutral or Alkaline

Position

Full sun
Aspect
South–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Iridaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Potentially harmful
Harmful 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
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

Grow in well-drained neutral or slightly alkaline soil in sun or part shade. See bulb iris cultivation

Propagation

Propagate by seed, sown in pots in a cold frame in autumn or spring. Lift and separate bulbs in early autumn

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Rock garden

Pruning

No pruning required

Pests

May be susceptible to aphids, slugs, snails and thrips

Diseases

May be susceptible to leaf spots, ink disease, rust diseases, bulb rot and viruses; see Iris diseases for more details