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Onagraceae
Oenothera macrocarpa ssp. macrocarpa
Bigfruit Evening Primrose
Prized for its huge cup-shaped clear yellow flowers that announce the start of summer and continue much of the season, Missouri sundrops is a lax-stemmed herbaceous perennial from the central United States. The solitary flowers open in the afternoon and close the next morning, turning a salmon color as they wither. They may be pollinated by night-flying hawkmoths. The short stiff flower stalks are reddish and hairy and hold the flowers aloft. Large papery winged seedpods follow the flowers. The leaves are narrowly lance-shaped and covered with gray down.
Missouri sundrops grows and flowers best in well-drained soil and full sun. In hot climates it may need shade at mid-day and regular watering until it establishes its large central taproot. It can be grown as a sparse trailing groundcover or as a summer-brightening contributor to perennial gardens and mixed borders.
8 - 3
4 - 8
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Perennial
Full Sun, Partial Sun
4"-6" / 10.2cm - 15.2cm
15"-20" / 38.1cm - 50.8cm
Late Spring, Early Summer, Summer, Late Summer, Early Fall
Central United States
Neutral, Alkaline
Well Drained
Loam, Sand
Medium
Drought Tolerant, Average Water
Prostrate/Trailing
Spring, Summer, Fall
Showy
Yellow
Tan
Green
Yes
No
Single
Fine
Matte
Edging, Groundcover, Mixed Border, Rock Garden / Wall, Wildflower
Butterflies
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