Missouri evening primrose (Oenothera macrocarpa)
Care, watering, light and tips for Missouri 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 Missouri evening primrose
Oenothera macrocarpa, commonly known as Bigfruit Evening Primrose, is a low-growing perennial valued for its large, fragrant, cup-shaped yellow flowers that open at dusk. Its striking blooms and trailing habit make it ideal for rock gardens, path edges, or as ground cover in sunny, dry garden spots. It adds a vibrant, wild touch to the garden, attracting nocturnal pollinators.
Native range
Central and southern United States
Care tips
It requires full sun for optimal flowering and prefers well-drained soils, even poor or sandy ones. It is very drought tolerant once established, so watering should be moderate, allowing the soil to dry out completely between waterings. Avoid overwatering, as waterlogging is its main enemy and can lead to root rot. It does not need frequent fertilization, and a common mistake is planting it in partial shade or heavy, wet soils, which drastically reduces its flowering and overall health.
How to save a dying Missouri evening primrose
- Warning signs
- Yellowing or wilting leaves, soft stems, no blooms or quickly fading flowers.
- First aid
- Check drainage and soil moisture; if waterlogged, repot in dry, well-draining soil. If dry, water deeply.
- What kills it
- Overwatering leading to root rot, or lack of direct sun. Does not tolerate heavy, wet soils.
- Can it be saved?
- Yes, if the cause is corrected promptly. It's hardy but sensitive to waterlogging.