Primula japonica 'Postford White' (Pf)

RHS Plant Profile
Japanese primrose 'Postford White'
Award of Garden Merit
Herbaceous Perennial Bogs

A vigorous perennial with broad, crinkly-edged leaves and erect stems bearing up to 6 whorls of white flowers with a golden yellow eye

Position

Full sun, Partial shade

Soil Types

Loam

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Loam
Moisture
Poorly–drained
pH
Acid or Neutral

Position

Full sun Partial shade
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered
Hardiness
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Primulaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
Primula are herbaceous or semi-evergreen perennials, forming a basal rosette of simple leaves, with salver-shaped or bell-shaped flowers which may be solitary or carried in an umbel or in whorls on an erect stem
Name Status
Accepted
Horticultural Group
Proliferae section primulas are moisture-loving herbaceous or semi-evergreen perennials forming a rosette of basal leaves, with erect stems each carrying several whorls of salver-shaped flowers

How to Grow

Cultivation

Grow in deep, fertile reliably moist soil in partial shade or sun

Propagation

Propagate by division in early spring

Suggested planting locations and garden types

  • Cottage and informal garden
  • Rock garden
  • Flower borders and beds

Pruning

Cut back after flowering

Pests

May be susceptible to aphids, vine weevil, slugs and glasshouse red spider mite

Diseases

Generally disease-free