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Laguna® Ultraviolet Lobelia erinus

  • Hardy Zones
    • 9 - 11
  • Exposure
    • Part Sun to Sun
  • Season
    • Spring
    • Summer
  • Mature Size
    • 6 - 12 Inches
Proven Winners® Annuals
Laguna® Ultraviolet Lobelia erinus
Part Sun to Sun 6 - 12


You're the ARTIST, I'm the PAINT.

True blue flowers can be difficult to find in nature but Lobelia are true, real blue. This lobelia has better heat tolerance than older varieties.

Continuous Bloom or Rebloomer
Long Blooming
Deadheading Not Necessary


Plant Type: 
Height Category: 
Garden Height: 
6 - 12 Inches
6 - 10 Inches
12 - 24 Inches
Flower Colors: 
Flower Shade: 
Bright Violet Purple
Foliage Colors: 
Foliage Shade: 
Dark Green
Container Role: 

Plant Needs

Light Requirement: 
Part Sun to Sun
Maintenance Category: 
Bloom Time: 
Planting To Hard Frost
Hardiness Zones: 
9b, 10a, 10b, 11a, 11b
Water Category: 
Needs Good Drainage
Soil Fertility Requirement: 
Average Soil
Border Plant
Edging Plant
Mass Planting
Uses Notes: 

Good for use in the landscape and in container of all kinds.

Maintenance Notes: 

Self cleaning, no deadheading necessary. Laguna does not like "wet feet". Be sure that you do not keep the soil wet. Allow the soil surface to dry before watering again.

These newer types of Lobelia are much more heat tolerant than past plants. They will reliably bloom in warm temperatures unless night temperatures stay in the upper 70's or above. If you experience an extended time period with high night temperatures the plants may flush out of bloom, however, the plants themselves should continue to look good. If the plants do go out of flower using a sharp pair of scissors or pruning shears to give the plants a "haircut" - a slight overall trim - should encourage additional branching. Additional branching will result in increased flower power once the plants begin blooming again after night temperatures fall.

The plants may be trimmed back at anytime if you feel they could use it.

A yearly application of fertilizer or compost on garden beds and regular fertilization of plants in pots will help ensure the best possible performance.

Lucia® lobelias are bred to handle the summer heat better than most, delivering good all-season performance in landscapes, hanging baskets, window boxes, and combination containers. Choose from deep blue or vivid royal purple, self-cleaning selections when you buy.

To complement the most vibrant reds, fuchsias, and golds in your combination containers, try Lucia® Ultraviolet Lobelia. Its richly saturated royal purple blooms are produced profusely from spring through summer on cascading, well-branched plants. Like others in the Lucia® and Laguna® series, it has shown greater heat tolerance than typical Lobelias, retaining its shape and color over many months.

Laguna® Ultraviolet Lobelia erinus USPP 27,338, Can PBRAF
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