Pale Evening Primrose

Pale Evening Primrose

SKU: FL3819
Pale Evening Primrose has been red-listed in the wild, but it's an important food plant for native butterflies and bees. The highly fragrant, pale pink flowers bloom all summer, opening in the evening. Read More

Exposure Full-sun

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More details about Pale Evening Primrose

Oenothera pallida. This rare BC native grows to a height of 15-60cm (6-24"). Pale Evening Primrose has been red-listed in the wild, but it's an important food plant for native butterflies and bees. The highly fragrant, pale pink flowers bloom all summer, opening in the evening. This dainty flower looks magnificent in mass plantings, and may naturalize in BC gardens. It is very drought tolerant once established, so a choice option for xeriscaping schemes. Meanwhile, just enjoy them planted in large containers. Pale Evening Primrose plants are not long lived, but will self-seed in the right environment.

Perennial

Quick Facts:

    • Rare BC wildflower
    • Dainty, pale pink flowers
    • Highly fragrant
    • Blooms all summer
    • Magnificent in mass plantings

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Pale Evening Primrose

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All About Pale Evening Primrose

Latin

Latin
Oenothera pallida

Difficulty

Difficulty
Easy

Season & Zone

Season & Zone
Exposure: Full sun
Zone: Hardy to Zone 4

Timing

Timing
Sow indoors 8-10 weeks before last frost in peat or coir pots to prevent root disturbance. That’s the third week in January to the first week in February on the coast. Otherwise direct sow the seeds in early spring, or autumn in mild winter areas. Seeds should germinate in 5-30 days.

Starting

Starting
Just cover the small seeds, and germinate at 18°-21°C (65°-70°F). Oenothera seeds require darkness to break dormancy.

Growing

Growing
Space plants 13-23cm (5-9″) apart. Plant in light, well drained soil with a pH of around 5.5-7.0. Sandy soil works well for this plant. Oenothera is tolerant of dry and is a good candidate for xeriscaping. In really fertile soil the foliage can be robust, but fewer flowers form. Top dress with fully composted manure in the spring. Provide irrigation during long hot spells, and cut the plants back by a third after flowering to keep them looking neat. Hot summer weather may cause the plants to briefly stop flowering. Powdery mildew sometimes appears in humid conditions.

How to Grow Oenothera

Step 1: Timing

Sow indoors 8-10 weeks before last frost in peat or coir pots to prevent root disturbance. That’s the third week in January to the first week in February on the coast. Otherwise direct sow the seeds in early spring, or autumn in mild winter areas. Seeds should germinate in 5-30 days.

Step 2: Starting

Just cover the small seeds, and germinate at 18°-21°C (65°-70°F). Oenothera seeds require darkness to break dormancy.

Step 3: Growing

Ideal pH: 5.5-7.0.

Space plants 13-23cm (5-9″) apart. Plant in light, well drained soil. Sandy soil works well for this plant. Oenothera is tolerant of dry and is a good candidate for xeriscaping. In really fertile soil the foliage can be robust, but fewer flowers form. Top dress with fully composted manure in the spring. Provide irrigation during long hot spells, and cut the plants back by a third after flowering to keep them looking neat. Hot summer weather may cause the plants to briefly stop flowering. Powdery mildew sometimes appears in humid conditions.

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