🌼 Evening Primrose (Oenothera biennis) — Organic Seeds

Common Names: Common Evening Primrose, Sun Drop, Night Willow-Herb

🌱 Seed Quality Promise

All seeds sold by Yahuah’s Farm are 100% organic, non-GMO, and never chemically treated or coated.
We do not sell pelleted, dyed, chemically enhanced, or synthetic-treated seeds.
What you plant should be as pure as the medicine it becomes.

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About Evening Primrose

Evening Primrose is a striking, fast-growing biennial known for its large, lemon-yellow flowers that open in the evening and glow softly in the fading light. Native to North America, this plant has long been treasured as both a medicinal ally and a pollinator-supporting wildflower.

Its flowers open at dusk, attracting moths and nighttime pollinators, while its deep taproot strengthens the soil below. Once established, Evening Primrose readily self-seeds, returning year after year.

This is a wild, resilient, and deeply valuable plant—perfect for homesteads, meadow gardens, and natural landscapes.

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Traditional & Herbal Uses

Evening Primrose has been traditionally used as:

• A classic women’s herb
• A traditional skin-supporting plant
• A nourishing tonic herb
• A traditional calming botanical
• A foundational wellness plant
• A long-term tonic herb
• A soothing household remedy plant
• A seed-based medicinal plant

The seeds, roots, leaves, and flowers have all been traditionally used.

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Plant Characteristics

Botanical Name: Oenothera biennis
Life Cycle: Biennial (self-seeding)
Growth Habit: Upright, branching
Mature Height: 3–5 feet
Mature Width: 1–2 feet
Flower Color: Bright yellow
Bloom Time: Late spring through summer
Bloom Behavior: Opens in the evening
Root Type: Deep taproot
Attracts: Bees, moths, beneficial insects

Evening Primrose forms tall, graceful spikes covered in glowing yellow blooms.

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Growing Evening Primrose from Seed

Evening Primrose is very easy to grow and thrives in tough conditions.

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How to Germinate Evening Primrose Seeds

Surface Sowing (Important)

Evening Primrose seeds need light to germinate.

1. Scatter seeds on the soil surface.

2. Press lightly into soil.

3. Do NOT cover.

4. Keep soil consistently moist.

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Germination Time

• 7–21 days
• May be staggered

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Ideal Growing Conditions

USDA Zones

Zones 4–9

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Sun

• Full sun preferred
• Tolerates partial shade

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Soil

• Well-draining
• Sandy or loamy
• Low to moderate fertility

Evening Primrose thrives in poor soils.

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Water

• Moderate watering
• Drought tolerant once established

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Spacing

• Space plants 12–18 inches apart
• Can grow tall—allow airflow

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Growth Timeline

Year 1:
• Leaf rosette
• Root establishment

Year 2:
• Tall flowering stalk
• Heavy blooming
• Seed production

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Harvesting

Flowers

Harvest when fully open.

Leaves

Harvest young and tender.

Roots

Harvest in the first year before flowering for best quality.

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Seed Saving

Evening Primrose self-seeds easily.

1. Allow seed pods to mature and dry.

2. Collect pods.

3. Shake seeds into a container.

4. Store cool, dark, and dry.

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Why Grow Evening Primrose?

• Beautiful night-blooming flowers
• Native North American plant
• Pollinator friendly
• Extremely hardy
• Easy to grow
• Self-seeding
• Deep-rooted soil builder
• Traditional medicinal plant
• Low maintenance