Evening Primrose, King’s Cure-All Flowers

The night-flowering Evening Primrose (Oenothera biennis) has delicate four-petal lemon-scented lemon-yellow 2" blossoms that close every day by noon, opening again in the late afternoon and evening. Plants grow 2'-6' tall on hairy stems tinged with purple.

Also called King’s Cure-All for its herbal and medicinal properties.

• Life cycle: Biennial
• Bloom season: Spring, summer, fall
• Attracts: Birds, bees, butterflies, moths, and other pollinators
• Flower meaning: Bashfulness, inconstancy, longevity, youth

SEED PLANTING TIPS

• Botanical name: Oenothera biennis
• Hardiness zones: 4-9
• Planting season: Spring, summer
• Days to maturity: 2nd year
• Cold stratify: Yes
• Depth to plant seeds: Lightly cover - seeds need light to germinate
• Spacing between plants: 12"-18" apart
• Days to germinate (sprout): 15-30 days
• Germination soil temps: 65F-70F
• Soil types: Sandy, loamy, rich, well-drained
• Soil pH: 5.5-7.5
• Water needs: Average
• Sun needs: Full sun, part shade
• Frost tolerant: No
• Drought tolerant: Yes
• Deer resistant: Yes