110 seeds| Evening Primrose Seeds - Oenothera biennis - Hardy Biennial Fragrant Herb with Yellow Night Blooming Flowers for Herbal and Cottage Gardens #6010 ^Sale

Evening Primrose (Oenothera biennis) is a hardy biennial herb known for its bright yellow flowers that open at dusk and release a sweet fragrance. Traditionally valued in herbal gardens, it is also an attractive ornamental that adds beauty to cottage gardens, wildflower meadows, and borders. Easy to grow and pollinator friendly, Evening Primrose is low maintenance and adapts well to a variety of soils.

Seed Information

• Type: Herb Seeds

• Common Name: Evening Primrose

• Genus: Oenothera

• Species: Oenothera biennis

• Life Cycle: Biennial (self-seeds readily for naturalized growth)

• Features: Yellow night-blooming flowers, pollinator friendly, fragrant, herbal and ornamental use

• Season of Interest: Summer to fall

• Indoor/Outdoor: Outdoor

• Sunlight: Full sun to partial shade

• Cultivating Difficulty: Easy

• Watering: Light to moderate, drought tolerant once established

• Climate: Temperate, Mediterranean, Humid Subtropical

• Growth Habit: Upright, 2–5 ft tall

• Soil Type: Well-draining, sandy or loamy soils

• Soil pH: 5.5–7.5

• Planting Time: Spring or fall

Grow Instructions

• When to Plant: Sow directly outdoors in spring or fall; can start indoors 6–8 weeks before transplanting

• Soil: Well-draining sandy or loamy soil

• Sunlight: Full sun to partial shade

• Watering: Water moderately; once mature, plants tolerate dry conditions

• Spacing: 12–18 inches apart

• Germination: 10–20 days at 65–75°F (18–24°C)

• Bloom Season: Second year (biennial) from summer to fall evenings

• Tips: Allow some plants to reseed for continuous growth; attracts moths and night pollinators