annual

Riviera Marine Blue Lobelia

Lobelia erinus 'Riviera Marine Blue'

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Riviera Marine Blue Lobelia (Lobelia erinus 'Riviera Marine Blue') at Sargent's Nursery

Riviera Marine Blue Lobelia flowers

Riviera Marine Blue Lobelia flowers

(Photo courtesy of NetPS Plant Finder)

Height:  5 inches

Spacing:  8 inches

Sunlight:  partial shade 

Hardiness Zone:  (annual)

Group/Class:  Riviera Series

Brand:  PanAmerican Seed

Description:

Ball shaped plants stay compact and mounded throughout the season; interesting blue flowers blanket rich green foliage; a great selection for early flowering beds, borders and containers

Ornamental Features

Riviera Marine Blue Lobelia features dainty blue flowers at the ends of the stems from mid spring to mid fall. Its tiny narrow leaves remain dark green in color throughout the season.

Landscape Attributes

Riviera Marine Blue Lobelia is an 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. 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 Marine Blue Lobelia is recommended for the following landscape applications;

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

Planting & Growing

Riviera Marine 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 8 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 with partial shade or which is shaded from the hot afternoon sun. It does best in average to evenly moist conditions, but will not tolerate standing water. This plant should not require much in the way of fertilizing once established, although it may appreciate a shot of general-purpose fertilizer from time to time early in the growing season. 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 Marine Blue Lobelia 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  Groundcover  Container  Basket 
Applications
Flowers  Texture 
Features & Attributes