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Oenothera macrocarpa
Oenothera macrocarpa
Garden Diary

Date purchased or acquired:

Where acquired:

Location in the garden:


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Oenothera macrocarpa

Ozark Sundrops

USDA Zone: 3-9

Plant number: 1.400.050

(Formerly Oenothera missouriensis) This sun-loving plant produces large yellow, crepe-textured flowers all summer long, resembling poppies in appearance. Flowers are followed by unusual winged seed pods Especially suited to hot, dry sites with well-drained soil. A good choice for the rock garden or as edging. Remove faded flowers to encourage more buds to form. New growth can be slow to appear in the spring, so be patient. A native North American wildflower. Drought tolerant once established. Tolerates summer heat and humidity.

Further details for
Oenothera macrocarpa

Optimal Growing
Appearance and
Sun Exposure
  Full Sun
Soil Type
  Normal or
Soil pH
  Neutral or
  Alkaline or
Soil Moisture
Care Level
Flower Colour
Blooming Time
  Early Summer
  Mid Summer
  Late Summer
Foliage Color
  Deep Green
Plant Uses & Characteristics
  Accent: Good Texture/Form
  Alpine & Rock
  Drought Tolerant
  Wild Flower
   15-30 cm
   6-12 inches
   25-30 cm
   10-12 inches
Foot Traffic
Growth Rate