Plant Database

perennial

Deep Blue Star Lobelia

Lobelia 'Deep Blue Star'

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Deep Blue Star Lobelia (Lobelia 'Deep Blue Star') at GardenWorks

Deep Blue Star Lobelia flowers

Deep Blue Star Lobelia flowers

(Photo courtesy of NetPS Plant Finder)

Height:  8 inches

Spacing:  10 inches

Sunlight:  partial shade 

Hardiness Zone:  9b

Ornamental Features

Deep Blue Star Lobelia features dainty royal blue flowers at the ends of the stems from mid spring to mid fall. Its tiny narrow leaves remain green in colour throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Deep Blue Star Lobelia is an herbaceous perennial 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.

Deep Blue Star Lobelia is recommended for the following landscape applications;

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

Planting & Growing

Deep Blue Star Lobelia will grow to be about 8 inches tall at maturity, with a spread of 12 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 10 inches apart. Its foliage tends to remain low and dense right to the ground. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 5 years.

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 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.

Deep Blue Star 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


Disclaimer - This Plant Database is an online catalog representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact your favourite GardenWorks location directly for current availability. It does not include our entire inventory of plants, so be sure to visit GardenWorks to see varieties that may not be represented on this list.