Oenothera speciosa Twilight ('Turner01'PBR) (v)

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white evening primrose [Twilight]

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Synonyms

Oenothera speciosa 'Turner01'PBR
Oenothera berlandieri 'Twilight'

Plants for pollinators
Herbaceous Perennial
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A vigorous, spreading perennial to 30cm tall, with purple-bronze and green varigated lance-shaped leaves. Arching stems bearing large, lightly-veined, saucer-shaped white flowers that age to shell-pink, from early summer to autumn

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or 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
Onagraceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Matforming
Genus
Oenothera can be annuals, biennials or perennials, upright or spreading in habit, with simple or lobed leaves and bowl-shaped, white, yellow or pink flowers over a long period in summer
Name Status
Trade

How to Grow

Cultivation

Grow in well-drained, even stony soil in full sun and protect from excessive winter wet

Propagation

Propagate by division in early spring or propagate by softwood cuttings of unflowered shoots from late spring to midsummer

Suggested planting locations and garden types

  • Cottage and informal garden
  • Wildlife gardens
  • Banks and slopes
  • Flower borders and beds
  • Garden edging
  • Ground cover
  • Underplanting of roses and shrubs

Pruning

No pruning required

Pests

Young growth may be susceptible to slugs

Diseases

May be susceptible to leaf spot, powdery mildews, and root rot on heavy wet soils