Dwarf Evening Primrose is a compact variety of the classic Oenothera biennis, prized for its cheerful yellow blooms that open in the evening and attract nighttime pollinators. Ideal for borders, rock gardens, containers, and wildflower settings, this low-growing plant brings both charm and ecological value.

Quick Facts

• Botanical name: Oenothera biennis (dwarf variety)

• Common names: Dwarf Evening Primrose, Sundrop, Night Candle

• Plant type: Biennial (sometimes annual in warmer zones)

• Days to maturity: 90–120 days from seed

• Height: 8–16 inches

• Sun exposure: Full sun

• Hardiness zones: USDA 4–9

• Spacing: 8–10 inches apart

When to Plant

• Spring: Direct sow outdoors after last frost or start indoors 6–8 weeks prior.

• Fall: In mild climates, fall sowing allows plants to overwinter and bloom early next season.

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

How to Plant

1. Soil preparation: Well-drained, sandy or loamy soil is ideal. Avoid heavy or waterlogged areas.

2. Sowing depth: Lightly press seeds into soil surface; do not bury deeply—light aids germination.

3. Watering: Keep soil moist during germination, then water sparingly once plants are established.

4. Thinning: Space plants 8–10 inches apart to encourage airflow and full flowering.

Growing Tips

• Thrives in poor soils and dry conditions—perfect for xeriscaping or low-maintenance beds.

• Flowers open late afternoon to dusk and close in the morning.

• Deadhead to prolong blooming or let some flowers go to seed for natural reseeding.

• Attracts moths, bees, and beneficial night pollinators.

Harvesting & Use

• Ornamental: Use in borders, pathways, containers, or pollinator gardens.

• Medicinal tradition: Roots and seeds historically used for their oil (consult an herbalist).

• Wildlife: Beneficial for bees, butterflies, and birds (who may feed on seeds).

Companion Plants

Grows well alongside other drought-tolerant wildflowers like blanket flower, coreopsis, black-eyed Susan, and yarrow. Adds contrast with its yellow evening blooms.

Why Grow Dwarf Evening Primrose?

This easy-to-grow wildflower is ideal for gardeners seeking low-maintenance, pollinator-friendly plants that offer unique evening interest. Its compact size makes it suitable even for small gardens and containers, and it performs well in tough soil conditions with minimal care.