Overview
Oenothera subterminalis is a suckering herbaceous perennial in the genus Oenothera, part of the Onagraceae family, with deciduous foliage. Oenothera subterminalis grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H5. Suggested uses include city and courtyard gardens, coastal, cottage and informal garden, gravel garden, prairie planting, low maintenance, banks and slopes and flower borders and beds.
About
Oenothera subterminalis is a herbaceous perennial cultivar within the Oenothera genus, known for its suckering habit and deciduous foliage. This plant thrives in full sun on south-facing, sheltered sites with well-drained, neutral loam soil. It blooms throughout summer and into autumn, producing bowl-shaped flowers typical of the genus. Suitable for a variety of garden settings including city courtyards, coastal areas, cottage gardens, and gravel or prairie plantings, it is hardy in the UK (H5) and benefits from fertile, moist soil conditions.
Growing conditions
Best soil and position for Oenothera
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
Oenothera subterminalis size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Suckering
- Foliage
- Deciduous
- Suggested uses
- City and courtyard gardens, Coastal, Cottage and informal garden, Gravel garden, Prairie planting, Low Maintenance, Banks and slopes, Flower borders and beds
Care notes
Pruning and caring for Oenothera subterminalis
- Propagation
- Seed sown in containers in a cold frame in early spring, Division in early spring, Softwood cuttings of unflowered shoots from late spring to midsummer
- Pest resistance
- Slugs, Aphids
- Disease resistance
- Leaf spot, Powdery mildews, Downy mildews, Root rot in rich, wet, heavy soil
Frequently asked questions
Where is the best place to plant Oenothera subterminalis?
Oenothera subterminalis prefers full sun. It suits sheltered positions.
What soil does Oenothera subterminalis need?
Oenothera subterminalis grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Oenothera subterminalis hardy in the UK?
Oenothera subterminalis has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Oenothera subterminalis?
Seed sown in containers in a cold frame in early spring, Division in early spring, Softwood cuttings of unflowered shoots from late spring to midsummer.
More in the Oenothera genus
- Oenothera caespitosatufted evening primrose
- Oenothera deltoidesdesert evening primrose
- Oenothera lindheimeri 'Whirling Butterflies' (G)gaura 'Whirling Butterflies'
- Gaura lindheirmeri 'Cool Breeze'