Lobelia siphilitica
Common name: Great Blue Lobelia
Great Blue Lobelia is a showy plant and produces welcome color diversity during late summer and fall, with its violet-blue spikes. It can grow in full sun but prefers part shade and wet to mesic soils. Reaching 1-4’, it’s a nice counterpoint to the mostly yellow flowers of late summer and early fall. It attracts primarily bumble bees and less often, hummingbirds. Also commonly called blue cardinal flower.
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Plant Details
Plant type
Forbs
Soil type
Mesic (Not too Wet Not too Dry), Moist Mesic, Wet
Light exposure
Full Sun, Partial Sun / Part Shade
Bloom period
Summer
Urban environment
Yards that Flood
Habitat
Prairie Grasslands, Savannas
Growth form
Shrubby/Clump, Colonizing / Spreading
Growth rate
Moderate
Flower color
Blue
Fall color
None
Size
- Mature height
- 1 Feet
- Mature width
- 2 Feet
- Max height
- 4 Feet
- Max width
- 3 Feet
Additional information
Pollinator hot spot