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Riviera Sky Blue Lobelia

Lobelia erinus 'Riviera Sky Blue'

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Riviera Sky Blue Lobelia (Lobelia erinus 'Riviera Sky Blue') at Ashcombe Farm & Greenhouses

Lobelia erinus 'Riviera Sky Blue' flowers

Lobelia erinus 'Riviera Sky Blue' flowers

(Photo courtesy of NetPS Plant Finder)

Height:  5 inches

Spacing:  6 inches

Sunlight:  partial shade 

Hardiness Zone:  (annual)

Group/Class:  Riviera Series

Brand:  Ball

Ornamental Features

Riviera Sky Blue Lobelia features dainty sky blue flowers with white eyes at the ends of the stems from mid spring to mid fall. Its tiny narrow leaves remain green in color throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Riviera Sky Blue Lobelia is an herbaceous annual with a trailing habit of growth, eventually spilling over the edges of hanging baskets and containers. 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. Trim off the flower heads after they fade and die to encourage more blooms late into the season. It has no significant negative characteristics.

Riviera Sky Blue Lobelia is recommended for the following landscape applications;

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

Planting & Growing

Riviera Sky Blue Lobelia will grow to be only 5 inches tall at maturity, with a spread of 8 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 6 inches apart. Its foliage tends to remain low and dense right to the ground. 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 be grown in a location that is shaded from the hot afternoon sun. 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 somewhat tolerant of urban pollution. This is a selected variety of a species not originally from North America. 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.

Riviera Sky Blue Lobelia is a fine choice for the garden, but it is also a good selection for planting in hanging baskets. Because of its trailing habit of growth, it is ideally suited for use as a 'spiller' in the 'spiller-thriller-filler' container combination; plant it near the edges where it can spill gracefully over the pot. 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  Groundcover  Basket 
Applications
Flowers  Texture 
Ornamental Features