Evening primrose (Oenothera macrosperma)
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 macrosperma, also known as Großsamige Nachtkerze, is a perennial herbaceous plant from the Onagraceae family, prized for its large, showy yellow flowers that open at dusk. Its delicate petals and low-growing habit make it ideal for path edges, rock gardens, or as ground cover in naturalistic garden settings. It adds a vibrant splash of color and a subtle fragrance to the garden during summer evenings.
Native range
Central United States
Care tips
It thrives in full sun for abundant flowering, though it tolerates some partial shade. Watering should be moderate, allowing the substrate to dry slightly between waterings, as it is quite drought-tolerant once established. It flourishes in well-drained soils, even sandy or poor ones. A common mistake is overwatering, which can lead to root rot, so ensure the soil does not become waterlogged.
How to save a dying Evening primrose
- Warning signs
- Wilted, yellowing, or spotted leaves; lack of flowering.
- First aid
- Check drainage and soil moisture. Ensure direct sun and aeration.
- What kills it
- Overwatering (root rot) or too much shade (weakens).
- Can it be saved?
- Yes, if roots aren't completely rotted and environment is corrected.