Evening primrose (Oenothera cambrica)
Care, watering, light and tips for Evening primrose on Floravia.
Quick facts
- Family: Onagraceae
- Difficulty: Easy to care for
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
About Evening primrose
Oenothera cambrica, also known as 'prærienattlys' in Norwegian, is a charming perennial plant that produces delicate cup-shaped yellow flowers that open in the evening and remain open throughout the night. Its compact growth habit and prolific blooming make it ideal for garden borders, rockeries, or containers, adding a touch of nocturnal light to the landscape. It's an excellent choice for low-maintenance gardens and for attracting nocturnal pollinators.
Native range
North America (United States and Canada)
Care tips
This Oenothera thrives in full sun and well-drained soil, even poor or sandy types. It requires moderate watering, allowing the substrate to dry slightly between waterings, and is quite drought-tolerant once established. Avoid overwatering, as it can lead to root rot; a common mistake is treating it like a plant that needs constant moisture. It doesn't need much fertilization and benefits from deadheading to encourage continuous blooming.
How to save a dying Evening primrose
- Warning signs
- Yellowing or wilting leaves, soft stems, poor or no flowering. May indicate water stress or deficiencies.
- First aid
- Check soil moisture. If dry, water deeply. If waterlogged, improve drainage. Consider repotting if rot is present.
- What kills it
- Overwatering causes root rot. Extreme drought or lack of light also fatal. Does not tolerate very heavy soils.
- Can it be saved?
- Yes, if roots are not completely rotted. Act quickly by adjusting watering and improving soil drainage.