Evening Primrose, scientifically known as Oenothera biennis, is a striking biennial wildflower native to North America and admired for its tall elegant stems and glowing yellow blossoms that open in the evening hours. This beautiful plant can grow up to 6 feet tall and is especially valued for its sweet fragrance and ability to attract nighttime pollinators such as moths.
The plant features bright yellow cup-shaped flowers that bloom from summer into fall, creating a stunning display in wildflower gardens and natural landscapes. Its lance-shaped green leaves are covered in fine hairs and grow along sturdy upright stems rising from a deep taproot system.
Evening Primrose is well loved for both its ornamental appeal and ecological value. The fragrant blooms provide an important nectar source for pollinators, while the tall graceful habit adds natural beauty and movement to garden spaces.
Easy to grow and adaptable to many conditions, Evening Primrose is an excellent addition to cottage gardens, pollinator habitats, meadows, and naturalized landscapes.
Evening Primrose Seed Details
- Quantity: 200 Seeds
- Botanical Name: Oenothera biennis
- Plant Type: Biennial Wildflower
- Flower Color: Bright Yellow
- Bloom Season: Summer Through Fall
- Height: Up to 6 Feet Tall
- Sun Requirements: Full Sun to Partial Shade
- Soil Requirements: Well-Drained Soil Rich in Organic Matter
- Fragrance: Sweetly Fragrant Evening Blooms
- Pollinator Friendly: Yes
- Growth Habit: Tall Upright Biennial
- Ideal Uses: Pollinator Gardens, Wildflower Meadows, Cottage Gardens, Native Plant Gardens, Naturalized Areas, Wildlife Habitats, Moon Gardens, Prairie Plantings, Woodland Edges
How to Grow Evening Primrose
Choose a planting location that receives full sun to partial shade with well-draining soil enriched with organic matter. Evening Primrose prefers cool moist conditions but adapts well once established.
Sow seeds directly onto the soil surface and lightly dust with a thin layer of soil. Water gently after planting to avoid disturbing the seeds. Keep the soil consistently moist but not overly wet during germination.
For indoor starting, maintain temperatures around 60°F and provide a humid environment by loosely covering containers with plastic wrap or a humidity dome until seeds sprout.
Once seedlings develop several sets of true leaves, transplant them into individual pots or directly into the garden. Newly transplanted seedlings may benefit from temporary partial shade while establishing.
Water regularly during dry periods and fertilize lightly every few weeks using a balanced fertilizer to support healthy growth and flowering. Deadheading spent blooms can help encourage continued flowering throughout the season.
With proper care, Evening Primrose will reward gardeners with tall graceful flower spikes, fragrant nighttime blooms, and valuable support for pollinators and wildlife.
