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annual

Crimson Emperor Nasturtium

Tropaeolum majus 'Crimson Emperor'

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Crimson Emperor Nasturtium (Tropaeolum majus 'Crimson Emperor') at Echter's Nursery & Garden Center

Crimson Emperor Nasturtium flowers

Crimson Emperor Nasturtium flowers

(Photo courtesy of NetPS Plant Finder)

Height:  14 inches

Spacing:  8 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  (annual)

Other Names:  Indian Cress, Monk's Cress

Description:

A mounded variety with interesting gray-green foliage with creamy-white veins; blooms are deep red and contrast the foliage beautifully; great as an annual in mixed beds, containers or borders

Ornamental Features

Crimson Emperor Nasturtium features showy fragrant crimson trumpet-shaped flowers with yellow throats held atop the stems from early summer to early fall. The flowers are excellent for cutting. Its round leaves remain grayish green in color with distinctive creamy white veins throughout the year. The fruit is not ornamentally significant.

Landscape Attributes

Crimson Emperor Nasturtium is an herbaceous annual with a mounded form. 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. Trim off the flower heads after they fade and die to encourage more blooms late into the season. It is a good choice for attracting butterflies to your yard. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Insects

Crimson Emperor Nasturtium is recommended for the following landscape applications;

  • Mass Planting
  • Rock/Alpine Gardens
  • Border Edging
  • General Garden Use
  • Container Planting
  • Hanging Baskets

Planting & Growing

Crimson Emperor Nasturtium will grow to be about 14 inches tall at maturity, with a spread of 16 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 8 inches apart. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. This fast-growing annual will normally live for one full growing season, needing replacement the following year.

This plant does best in full sun to partial shade. It prefers dry to average moisture levels with very well-drained soil, and will often die in standing water. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This is a selected variety of a species not originally from North America.

Crimson Emperor Nasturtium is a fine choice for the garden, but it is also a good selection for planting in outdoor containers and hanging baskets. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers against which the thriller plants stand out. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Rock  Edging  Garden  Container  Basket 
Applications
Flowers  Attracts Wildlife 
Ornamental Features

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