Skip to site navigation

Gentiana asclepiadea AGM

Home  |  Plants > Plant Selector > Gentiana asclepiadea AGM

© www.gardenworldimages.com

Characteristics

Plant type

Herbaceous Perennial

Habit

Clump-forming

Resilience

Hardiness

H5 (hardy - cold winter)

Colour

Flower

Dark Blue in Autumn and Summer

Foliage

Green in Autumn and Summer

Size

Ultimate height

0.5-1 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

willow gentian

Family

Gentianaceae


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

G. asclepiadea is an herbaceous perennial to 1m, with arching stems bearing lanceolate leaves, and trumpet-shaped deep blue flowers 4-5cm in length in the upper leaf axils in late summer and early autumn

Other common names

  • milkweed gentian

How to grow

Sunlight

  • Part shade

Aspect

  • East-facing
  • Sheltered

Cultivation

Grow in light, humus-rich soil that is reliably moist but well-drained; avoid chalky soils. It needs shade from hot sun but in areas with cool, damp summers it can tolerate sun

Soil

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

Propagation

Propagate by seed sown in pots in an open frame as soon as seed is ripe

Suggested planting locations and garden types

Cottage/Informal Garden, Flower borders and beds, Cut Flowers, Rock Garden or Underplanting of Roses and Shrubs


How to care

Pests

Generally pest free

Diseases

Generally disease free