General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone: Zone 9b
Plant Height: 6 - 18 inches
Plant Spread: 18 - 30 inches
Leaves: Unusual foliage color
Fruit: Showy
Flowers: Showy
Flower Color: Yellow
Flower Time: Late spring or early summer
Summer
Late summer or early fall
Suitable Locations: Xeriscapic
Uses: Will Naturalize
Wildlife Attractant: Bees
Butterflies

Image
Common names
  • Fluttermill
  • Evening Primrose
  • Bigfruit Evening-Primrose
  • Missouri Evening Primrose
  • Ozark Sundrops
Botanical names
  • Accepted: Oenothera macrocarpa subsp. macrocarpa
  • Synonym: Oenothera missouriensis

Photo Gallery
Location: Photo by Carol Bacskai; zone 5b, Yorkville, IL
Date: 2023-06-08
Location: My garden in N E Pa. 
Date: 2017-08-05
Location: Hamilton Square Perennial Garden, Historic City Cemetery, Sacramento CA.
Date: 2015-04-06
Zone 9b.
Location: Hamilton Square Perennial Garden, Historic City Cemetery, Sacramento CA.
Date: 2015-11-14
Zone 9b. Dark brown seeds line the center of each of the four win
Location: Hamilton Square Perennial Garden, Historic City Cemetery, Sacramento CA.
Date: 2015-11-14
Zone 9b.

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy
Location: Morpeth, Northumberland, UK
Date: 2016-07-22
Location: Morpeth, Northumberland, UK
Date: 2016-07-23
Fading bloom
Location: My garden in N E Pa. 
Date: 2016-06-05

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