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annual

Summer Splash Light Blue Cupflower

Nierembergia 'Intasunnipabu'

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Summer Splash Light Blue Cupflower (Nierembergia 'Intasunnipabu') at Echter's Nursery & Garden Center

Summer Splash Light Blue Cupflower flowers

Summer Splash Light Blue Cupflower flowers

(Photo courtesy of NetPS Plant Finder)

Height:  20 inches

Spacing:  18 inches

Sunlight:  full sun 

Hardiness Zone:  (annual)

Group/Class:  Summer Splash Series

Description:

A fast growing variety that forms a nice carpet of quarter-sized light blue blooms all summer; cascades nicely over rocks and walls, and is a nice filler for mixed containers; exhibits good heat tolerance, but does need regular watering

Ornamental Features

Summer Splash Light Blue Cupflower has masses of beautiful powder blue cup-shaped flowers with buttery yellow eyes at the ends of the stems from early summer to early fall, which are most effective when planted in groupings. Its small narrow leaves remain bluish-green in color throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Summer Splash Light Blue Cupflower is a dense herbaceous annual with a mounded form. It brings an extremely fine and delicate texture to the garden composition and should be used to full effect.

This plant will require occasional maintenance and upkeep, and should not require much pruning, except when necessary, such as to remove dieback. It is a good choice for attracting bees and butterflies to your yard. It has no significant negative characteristics.

Summer Splash Light Blue Cupflower is recommended for the following landscape applications;

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

Planting & Growing

Summer Splash Light Blue Cupflower will grow to be about 20 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 18 inches apart. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. Although it's not a true annual, this fast-growing plant can be expected to behave as an annual in our climate if left outdoors over the winter, usually needing replacement the following year. As such, gardeners should take into consideration that it will perform differently than it would in its native habitat.

This plant should only be grown in full sunlight. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This particular variety is an interspecific hybrid. It can be propagated by cuttings; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Summer Splash Light Blue Cupflower is a fine choice for the garden, but it is also a good selection for planting in outdoor containers and hanging baskets. It can be used either as 'filler' or as a 'thriller' in the 'spiller-thriller-filler' container combination, depending on the height and form of the other plants used in the container planting. 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  Garden  Groundcover  Container  Basket 
Applications
Flowers  Texture  Attracts Wildlife 
Ornamental Features

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