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Crocus flavus subsp. flavus AGM

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© RHS 2003

Characteristics

Plant type

Bulb

Habit

Tufted

Fragrance

Flower

Resilience

Hardiness

H5 (hardy - cold winter)

Colour

Flower

Yellow in Spring

Foliage

Dark Green in Spring and Summer

Size

Ultimate height

Up to 10 cm

Ultimate spread

0-0.1 metre

Time to ultimate height

2-5 years


Preferred common name

yellow 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. flavus subsp. flavus is a perennial corm, with fragrant, bright deep yellow flowers opening with the relatively broad, green leaves

Other common names

  • bottle-flowered crocus
  • Dutch yellow crocus
  • yellow crocus

Synonym(s)

  • Crocus aureus
  • Crocus flavus
  • Crocus moesiacus

How to grow

Sunlight

  • Full sun

Aspect

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

Cultivation

Grow in a gritty, poor to moderately fertile soil

Soil

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

Propagation

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

Suggested planting locations and garden types

Banks and Slopes, City/Courtyard Gardens, Coastal, Cottage/Informal Garden, 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

Corms in storage may be subject to rots and moulds