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perennial

Yellow River Sundrops

Oenothera tetragona 'Yellow River'

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Yellow River Sundrops (Oenothera tetragona 'Yellow River') at America's Best Flowers

Yellow River Sundrops flowers

Yellow River Sundrops flowers

(Photo courtesy of NetPS Plant Finder)

Height:  18 inches

Spacing:  20 inches

Sunlight:  full sun 

Hardiness Zone:  3a

Other Names:  Oenothera fruticosa

Ornamental Features

Yellow River Sundrops has masses of beautiful yellow cup-shaped flowers along the stems from mid spring to mid summer, which emerge from distinctive indian red flower buds, and which are most effective when planted in groupings. Its narrow leaves are green in color. As an added bonus, the foliage turns a gorgeous burgundy in the fall. The fruit is not ornamentally significant.

Landscape Attributes

Yellow River Sundrops is an herbaceous perennial with a ground-hugging habit of growth. Its medium texture blends into the garden, but can always be balanced by a couple of finer or coarser plants for an effective composition.

This plant will require occasional maintenance and upkeep, and is best cleaned up in early spring before it resumes active growth for the season. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Spreading

Yellow River Sundrops is recommended for the following landscape applications;

  • Mass Planting
  • Groundcover
  • Naturalizing And Woodland Gardens

Planting & Growing

Yellow River Sundrops will grow to be about 18 inches tall at maturity, with a spread of 24 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 20 inches apart. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 15 years.

This plant should only be grown in full sunlight. It prefers dry to average moisture levels with very well-drained soil, and will often die in standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for a low-water garden or xeriscape application. It is not particular as to soil pH, but grows best in sandy soils. It is somewhat tolerant of urban pollution. This is a selection of a native North American species. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Groundcover  Naturalizing 
Applications
Flowers  Fall Color 
Ornamental Features

 

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