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Laguna® Sky Blue Lobelia erinus

Flower Season
  • Spring
  • Summer
Mature Size
12" 2' 30cm 61cm
Height: 6" - 12"
Spread: 12" - 2'
Height: 15cm - 30cm
Spread: 30cm - 61cm
  • Details

    6 - 12 Inches
    12 - 18 Inches
    12 - 24 Inches
    15cm - 30cm
    30cm - 46cm
    30cm - 61cm


    Soft blue flowers all season on cascading, well-branched plants; good summer performance; low maintenance

    Continuous Bloom or Rebloomer
    Long Blooming
    Deadheading Not Necessary


    Plant Type: 
    Height Category: 
    Garden Height: 
    6 - 12 Inches 15cm - 30cm
    12 - 18 Inches 30cm - 46cm
    12 - 24 Inches 30cm - 61cm
    Flower Colors: 
    Flower Shade: 
    Sky Blue
    Foliage Colors: 
    Foliage Shade: 
    Container Role: 

    Plant Needs

    Light Requirement: 
    Part Sun to Sun

    The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours).

    Maintenance Category: 
    Bloom Time: 
    Planting To Frost
    Hardiness Zones: 
    9a, 9b, 10a, 10b, 11a, 11b
    Water Category: 
    Edging Plant
    Uses Notes: 

    Plant alone or in combinations in all container types, hanging baskets, window boxes and landscapes.

    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.

    Ultimate Growing Guide: Lobelia Plants

    Laguna® Sky Blue Lobelia erinus 'WNLOBLSB23' USPP 35,592, Can PBRAF
  • 2 Reviews

    Browse reviews from people who have grown this plant.
    • Second year I have grown this plant an it's the one I look for every morning in Spring. Doesn't like super wet feet (pot it up if you have that Texas clay) and will eventually fizzle out as our summers stretch into upper 90s but it is so cute and worth it in the interim. As a hydrangea lover (shrubs so difficult to have here and impossible in my full sun landscape) I long for any blue I can get in the garden. One can only drive past so many shopping centers and neighboring yards with the exact same red knockout rose and bright yellow lantana combo. No doubt that holds up well but what about plants that feed the imagination??? Plant this one instead. It's calming, sweet, and a reasuring morning companion.

      Zone 9a, Houston TX
      , Texas
      , United States
      , 6 weeks ago
    • I’m usually more of a perennial gardener but I fell in love with these this year. I planted them in May and now at mid-October they are still vibrant and beautiful. The asters have come and gone but these blue beauties are still shining. These will be a mainstay in my garden each year now as long as I can buy them.

      Sarah Ford
      , Illinois
      , United States
      , 1 year ago
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