Primula sieboldii 'Bide-a-Wee Blue' (Co)

RHS Plant Profile
Siebold primrose 'Bide-a-Wee Blue'

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Herbaceous Perennial
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A herbaceous perennial to 20cm high, with rosettes of broadly oval, wrinkled green leaves. Produces lavender-blue flowers, in loose clusters on upright stems in late spring

Position

Partial shade

Soil Types

Clay, 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

Clay Loam
Moisture
Moist but well–drained
pH
Acid or Neutral

Position

Partial shade
Aspect
East–facing or North–facing or West–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H5

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
Unresolved
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea

Cortusoides section primulas are woodland perennials with long-stalked, rounded, lobed and hairy leaves, and usually rosy-pink flowers in a single umbel

How to Grow

Cultivation

Grow in partial or light shade, in deep humus-rich, moist, neutral to acid soil. See primula cultivation for further advice

Propagation

Propagate by division in autumn, will spread slowly over time

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Low Maintenance
  • Flower borders and beds
  • Garden edging
  • Underplanting of roses and shrubs

Pruning

Remove diseased or damaged leaves after flowering

Pests

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

Diseases

May be susceptible to grey moulds, primula brown core, primula leaf spot and virus diseases