General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Dry Mesic
Dry
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 9b
Plant Height: 12 - 18 inches
Plant Spread: 12 - 18 inches
Leaves: Semi-evergreen
Flowers: Showy
Flower Color: Yellow
Bloom Size: Under 1"
Flower Time: Late spring or early summer
Summer
Underground structures: Taproot
Wildlife Attractant: Bees
Butterflies

Image
Common names
  • Sundrops
  • Dwarf Sundrops
  • Prairie Sundrops
  • Serrateleaf Evening Primrose
Botanical names
  • Accepted: Oenothera serrulata subsp. serrulata
  • Synonym: Calylophus australis
  • Synonym: Calylophus serrulatus

Photo Gallery
Location: Eckert's Greenhouse, Sterling Hts, MI
Date: 2010-08-02
Location: southeast Nebraska
Date: 2010-06-14
Location: southeast Nebraska
Date: 2010-07-28 
With Smoky Hills skullcap in back
Location: Silver Spring, MD
Location: Eckert's Greenhouse, Sterling Hts, MI
Date: 2010-08-02

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