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Hosta plantaginea var. japonica AGM

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© RHS

Characteristics

Plant type

Herbaceous Perennial

Habit

Bushy

Fragrance

Flower

Resilience

Hardiness

H7 (very hardy)

Colour

Flower

White in Summer

Foliage

Green in Spring and Summer

Size

Ultimate height

0.5-1 metres

Ultimate spread

0.5-1 metres

Time to ultimate height

2-5 years


Preferred common name

Japanese fragrant plantain lily

Family

Asparagaceae


Hosta are clump-forming herbaceous perennials with simple, ovate or lance-shaped leaves, often attractively coloured or variegated, and erect racemes of nodding, funnel or bell-shaped flowers in early summer

H. plantaginea var. japonica is an herbaceous perennial with shining, light green, wavy-edged, ovate or heart-shaped leaves to 25cm long, and fragrant, pure white long-tubed flowers on stems to 60cm tall in late summer

How to grow

Sunlight

  • Part shade

Aspect

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

Cultivation

Grow in part shade in a soil enriched with well-rotted manure, garden compost or leaf mould. Avoid waterlooged soils and incorporate a controlled relase fertiliser into soil when planting. Avoid permanent mulches as they encourage slugs and snails

Soil

  • Moist but well-drained
  • Neutral or Acid
  • Loam

Propagation

Propagation is by division in early spring. Seed-raised offspring of species and particularly cultivars will be variable

Suggested planting locations and garden types

City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds, Ground Cover or Underplanting of Roses and Shrubs


How to care

Pruning

None required

Pests

Slugs and snails are the main problem, but vine weevils, voles, mice and deer can also be problematic

Diseases

Problems with a virus are becoming more common