Menu
Click here for detailed plant search
Perennials
All Plants  ::  All Perennials ::  All Lobelia
« Previous Plant  |  Next Plant »
Lobelia siphilitica - Great Blue Lobelia
Lobelia siphilitica - Great Blue Lobelia

Great Blue Lobelia

Lobelia siphilitica

  • Spikes of clear-blue flowers on unbranched stems
  • Tubular flowers are two-lipped
  • Finely-toothed oblong green leaves
  • Attracts butterflies and hummingbirds
  • Bloom Time: July to September
  • Flower Height: 110 cm
  • Foliage Height: 60 cm

ZONE:
4

COLOUR:
Blue

HEIGHT:
50-60 cm

SPREAD:
45-60 cm

You must be logged in to
view availability and prices.
×

Growing and Maintenance Tips:

Showy blooms flourish in a moist soil with filtered shade, adapting to drier conditions with more shade. May self-seed under optimum conditions. 

Additional Notes about Great Blue Lobelia:

Native to Ontario

 All parts of this plant are TOXIC.

Characteristics & Attributes

Full Sun
Full Sun
Partial Sun/Shade
Partial Sun/Shade
Attracts Hummingbirds
Attracts Hummingbirds
Attracts Butterflies
Attracts Butterflies
Fast
Fast
Deer Resistant
Deer Resistant
Rabbit Resistant
Rabbit Resistant
Poisonous
Poisonous
Native to Ontario
Native to Ontario
Cut Flower/Foliage
Cut Flower/Foliage
Bog or water garden
Bog or water garden
SOIL MOISTURE:
Moist to Wet Soils
Moist to Average
GROWTH RATE:
Medium
FLOWERING TIME:
Summer
HABIT:
Clumping
Upright
FOLIAGE COLOR:
Green
LANDSCAPE USES:
Naturalizing
Woodland/woods edge