Oenothera glazioviana
large-flowered evening primrose
O. glazioviana is an erect biennial, to 1.5m tall, with a basal rosette of crinkly, oval leaves and, in the second year, terminal clusters of bowl-shaped, pale yellow flowers, which open from red buds, in the evening in summer and autumn
Size
Ultimate height
1–1.5 metresTime to ultimate height
1–2 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Yellow | Green | ||
| Autumn | Yellow | Green | ||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered Hardiness
H5Botanical details
- Family
- Onagraceae
- Native to the UK
- 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
Correct
How to grow
Cultivation
Grow in an open position in poor to moderately fertile, well-drained soil in full sun
Propagation
Propagate by seed sown in early summer
Suggested planting locations and garden types
- Cottage and informal garden
- Coastal
- Gravel garden
- Wildflower meadow
- Flower borders and beds
Pruning
Cut back after flowering
Pests
Generally pest-free
Diseases
May be subject to powdery mildews and a leaf spot
Get involved
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