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Gentiana septemfida AGM

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© RHS 2002

Characteristics

Plant type

Alpine/Rockery or Herbaceous Perennial

Habit

Trailing

Resilience

Hardiness

H5 (hardy - cold winter)

Colour

Flower

Blue in Summer

Foliage

Green in Autumn and Summer

Size

Ultimate height

0.1-0.5 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

crested gentian

Family

Gentianaceae


Gentiana can be annuals, biennials, herbaceous or evergreen perennials, mostly with showy, trumpet or salver-shaped flowers

G. septemfida is a low-growing perennial to 20cm in height, with trailing stems clad in paired ovate leaves and ending in clusters of mid-blue, trumpet-shaped flowers 4cm in length in late summer

How to grow

Sunlight

  • Full sun

Aspect

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

Cultivation

Grow in moist but well-drained, humus-rich soil. Suitable for the front of borders. Performs best in sunny conditions

Soil

  • Moist but well-drained
  • Acid, Alkaline or Neutral
  • Loam, Chalk or Sand

Propagation

Propagate by seed or division of offsets in spring

Suggested planting locations and garden types

Cottage/Informal Garden, Flower borders and beds, Garden Edging, Gravel Garden, Ground Cover or Rock Garden


How to care

Pruning

No pruning required

Pests

Prone to slugs, snails and aphids

Diseases

Prone to root rot