About
A deciduous, clump-forming perennial with narrow, lime green leaves and in summer, large bright yellow flowers which appear during the day, rather than the evening.
About the 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
Growing conditions
SunlightFull sun
Soil typeChalk, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing, West-facing, East-facing
ExposureSheltered
UK hardinessH5
Plant details
Plant typeHerbaceous Perennial
HabitClump forming
FoliageDeciduous
Height0.5-1 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesGravel garden, Patio and container plants, City and courtyard gardens, Cottage and informal garden, Prairie planting, Coastal
Native toCentral and E USA
Care notes
CultivationGrow in well-drained soil in full sun
PruningNo pruning required
PropagationPropagate by division in early spring, or by softwood cuttings of unflowered shoots from late spring to midsummer
Pest resistanceMay be susceptible to slugs and aphids
Disease resistanceGenerally disease-free but may be susceptible to leaf spot, powdery mildews and downy mildews; root rot may be a problem in rich, wet, heavy soil