Oenothera biennis Seeds (Evening Primrose)

Evening Primrose (Oenothera biennis) is a biennial plant species native to North America. It is also known as Common Evening Primrose due to its prolific blooms that open at dusk. This plant species has a tall, erect stem with lance-shaped leaves and vibrant yellow flowers that attract pollinators. It can reach a mature height of 2-6 feet. Evening Primrose is adaptable and grows well in various soil types, preferably in full sun. It is hardy in USDA zones 3-9. Oenothera biennis seeds can be sown directly in the garden or started indoors for germination before transplanting.

Growing Oenothera biennis from Seed

• Growth cycle: Biennial
• Watering: Medium
• Sunlight: Full Sun
• Suitable climates: Arid, Highland, Humid Continental, Humid Subtropical, Marine West Coast, Mediterranean, Semiarid, Subarctic, Tundra
• Where to grow: Outdoors
• Flower color: Yellow

Germinating Evening Primrose Flower Seeds

To germinate Oenothera biennis, soak its seeds in water for 24 hours before planting them in well-draining soil. Keep the soil consistently moist and place the seeds in a warm, sunny location. Germination should occur within a couple of weeks.

We source all of our Oenothera biennis seeds from a small greenhouse facility based in southeastern Maine and store them in a dark, temperature-controlled environment before shipment. You’ll find that our fresh Evening Primrose seeds are much easier to germinate than the mass-produced packets of flower seeds found in stores! If you have any trouble growing Evening Primrose seeds, we’re happy to send you additional gardening tips. In the (unlikely) event that your Oenothera biennis seeds do not germinate at all, we’ll give you a full refund, no questions asked.

We offer this variety on Etsy, eBay, and Amazon, as well!

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