Evening primrose (Oenothera grandiflora)
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 grandiflora, or Large-flowering Evening-primrose, is a perennial herbaceous plant renowned for its spectacular yellow flowers that unfurl at dusk. These large, fragrant blooms bring a touch of light and elegance to cottage gardens, pathways, or flower beds. Its compact growth habit makes it ideal for adding color and life to sunny spots.
Native range
Southeastern United States
Care tips
It thrives in full sun for abundant flowering and well-drained soils, even sandy or poor ones. Watering should be moderate once established, as it tolerates dry spells; avoid waterlogging, which can lead to root rot. It's crucial to avoid over-fertilizing, as this can promote foliage growth at the expense of flowers. Ensure good soil drainage to prevent fungal diseases.
How to save a dying Evening primrose
- Warning signs
- Yellowish or spotted leaves, soft stems. Indicates overwatering or lack of light.
- First aid
- Replant in well-drained soil, prune damaged roots, place in partial shade.
- What kills it
- Constant waterlogging and excessive direct sun, which rot its roots and burn it.
- Can it be saved?
- Yes, if you act quickly. It requires patience and adjustments in watering and light.