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Herbaceous PerennialSynonym
Oenothera cinaeus
glaucous evening primrose
An herbaceous perennial to 80cm, with erect stems bearing smooth, ovate, glaucous leaves, reddish when young, and terminal racemes of light yellow flowers 3-5cm wide from late spring to late summer
Synonyms
Oenothera tetragona 'Sundrops'Oenothera fruticosa subsp. glauca 'Sundrops'
see moreOenothera tetragona var. fraseri
Oenothera cinaeus
Oenothera tetragona
Oenothera fraseri
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Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Chalk
Loam
Sand
Moisture
Well–drainedpH
Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Yellow | Green | ||
|---|---|---|---|---|
| Summer | Yellow | Green | ||
| Autumn | ||||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or ShelteredDrought resistance
Yes Hardiness
H5Botanical details
- Family
- Onagraceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy
- 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
Correct
- Plant range
- E N America
How to grow
Cultivation
Grow in moderately fertile well-drained soil in full sun
Propagation
Propagate by division in early spring or after flowering in late summer
Suggested planting locations and garden types
- Coastal
- Cottage and informal garden
- Mediterranean climate plants
- Low Maintenance
- Flower borders and beds
- Wall side borders
Pruning
Cut back after flowering
Pests
Diseases
Leaf spot and powdery mildew may be a problem