Flowers - Evening Primrose (King’s Cure-All)

$329 USD

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


  • 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

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