Oenothera fruticosa 'Youngii'

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Synonyms

Oenothera youngii

Plants for pollinators
Herbaceous Perennial

A clump-forming perennial to 60cm tall with evergreen, basal winter rosettes and upright, flowering stems bearing lance-shaped leaves to 8cm long that turn red in autumn. Bright yellow, cup-shaped flowers to 2.5cm across open during the day from red-tinged buds

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

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

Growing Conditions

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

Position

Full sun
Aspect
South–facing or West–facing or East–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
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Onagraceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Clump forming
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
Unresolved

How to Grow

Cultivation

Grow in well-drained soil in full sun

Propagation

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

Suggested planting locations and garden types

  • Cottage and informal garden
  • Gravel garden
  • Prairie planting
  • Wildlife gardens
  • Flower borders and beds

Pruning

No pruning required

Pests

May be susceptible to slugs and aphids

Diseases

Generally disease-free but may be susceptible to leaf spot, powdery mildews and downy mildews; may be susceptible to root rot in rich, wet, heavy soil