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Herbaceous Perennial

Oenothera fruticosa subsp. glauca 'Sonnenwende'

evening primrose 'Sonnenwende'

'Sonnenwende' is an erect herbaceous perennial or biennial up to 60cm high with red-tinged stems, lance-shaped to ovate, toothed, purplish green leaves up to 11cm long, and red buds opening to golden yellow flowers, 2.5-5cm across, open during the day, from early to late summer

Synonyms

Oenothera tetragona 'Sonnenwende'
Oenothera fruticosa 'Solstice'
see moreOenothera fruticosa subsp. glauca Solstice
Oenothera Solstice

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Plant nurseries
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Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–facing or East–facing

Exposure

Exposed or Sheltered

Drought resistance

Yes

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)

Botanical details

Family: Onagraceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Columnar upright
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: Accepted

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

City and courtyard gardens
Cottage and informal garden
Gravel garden
Prairie planting
Low Maintenance
Flower borders and beds

Pruning

No pruning required

Pests

May be susceptible to slugs and aphids

Diseases

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

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