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Crocus banaticus AGM

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© RHS 2002

Characteristics

Plant type

Bulb or Alpine/Rockery

Habit

Tufted

Resilience

Hardiness

H5 (hardy - cold winter)

Colour

Flower

Purple and Pale Purple in Autumn

Foliage

Green in Autumn

Size

Ultimate height

Up to 10 cm

Ultimate spread

0-0.1 metre

Time to ultimate height

2-5 years


Preferred common name

Byzantine crocus

Family

Iridaceae


Crocus are dwarf, deciduous perennials growing from a corm, with linear leaves usually with a silvery central stripe, and goblet-shaped, sometimes fragrant flowers in autumn or early spring

C. banaticus is a perennial corm with lilac to light purple flowers produced before the leaves in early autumn. Inner tepals much smaller than outer ones, which reflex in strong sun

Other common names

  • Byzantine crocus
  • iris-flowered crocus

Synonym(s)

  • Crocus byzantinus
  • Crocus iridiflorus

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • South-facing, North-facing, West-facing or East-facing
  • Exposed or Sheltered

Cultivation

Grow in a moderately fertile, humus-rich, moderately well-drained soil

Soil

  • Well-drained
  • Acid, Alkaline or Neutral
  • Chalk, Clay, Sand or Loam

Propagation

Propagate by seed, sown in pots in a cold frame when ripe or remove cormlets when dormant

Suggested planting locations and garden types

City/Courtyard Gardens, Flower borders and beds, Gravel Garden, Patio/Container Plants or Rock Garden


How to care

Pruning

No pruning required

Pests

Corms are vulnerable to mice, voles and squirrels

Diseases

Generally disease free, corms may rot in storage