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Product Description
Add cheerful color and natural beauty to your garden with Oenothera Biennis, an heirloom flowering plant known for its bright yellow blooms and robust growth. These seeds grow into hardy, low-maintenance plants ideal for garden beds, borders, meadows, and container planting. Perfect for home gardeners seeking ornamental flowers that provide long-lasting color and attract pollinators.
Plant Type: Oenothera Biennis (Heirloom Flower)
Seed Type: Non-GMO, high germination
Growth Habit: Upright biennial/perennial
Height: 60–120 cm (mature plant)
Flower Color: Bright yellow blooms
Blooming Season: Summer through early autumn
Sunlight: Full sun
Soil Type: Well-draining, fertile soil
Water Requirements: Moderate; drought-tolerant once established
Maintenance: Low; minimal care required
Pollinator Friendly: Attracts bees, butterflies, and beneficial insects
Seed Preparation: Optional cold stratification for 2–4 weeks improves germination.
Sowing Depth: Sow seeds 0.5–1 cm deep in seed-starting mix or garden soil.
Temperature: Maintain 18–22°C for optimal germination.
Watering: Keep soil lightly moist until seedlings establish.
Germination Time: 10–20 days depending on conditions.
Transplanting: Once seedlings have 2–3 true leaves, transplant into garden beds, borders, or meadows spaced 30–50 cm apart.
Care: Deadhead spent flowers to encourage continuous blooming; minimal maintenance required.

Life Cycle
Biennial flower
Planting Season
Cool season
Growth Habit
Upright branching
Flavor Profile
Not edible
Plant Characteristics
Bright yellow blooms
Use
Wildflower gardens
Growing Conditions
Dry sunny areas
Harvest Advantages
Evening blooming
Plant Resistance
Drought tolerant
Scientific Name: Oenothera biennis
Seed Names
Oenothera Biennis
Seed Type
Heirloom non-GMO
Oenothera biennis, commonly known as Evening Primrose, is a classic heirloom wildflower admired for its bright yellow blooms that open in the evening. Easy to grow and highly adaptable, this plant thrives in sunny locations and adds charm, pollinator value, and seasonal interest to home gardens.
Light Requirement
Full sun
Planting Depth
¼ inch
Sowing Method
Direct sowing
Plant Spacing
12–18 inches
Days to Maturity
120–180 days
Soil Preparation
Cold stratification
Hardiness Zones
USDA 4–9
Water Needs
Low watering
Planting Season
Spring or fall
Seed Count
Recommended Coverage
100
Up to 30 sq ft
500
Up to 150 sq ft
1000
Up to 300 sq ft