Great Blue Lobelia
Herbaceous perennial reaching 60-90 cm tall. Features lance-shaped leaves and spikes of bright blue, tubular flowers. Prefers consistently moist to wet soils and full sun to partial shade. Attracts hummingbirds and other pollinators. Excellent for rain gardens, stream banks, and wet meadows.
Plant Details
Bloom Colour: Blue
Bloom Time: Late-Summer to Fall
Sun Requirements: Sun to Part-Shade
Moisture: Moist to Wet
Phenology: Growth emerges May. Leaves fully developed by June. Blue flowers appear August-September. Seeds mature October. Dies back completely after frost.
Wildlife Value: Attracts hummingbirds and native bees; seeds eaten by small birds; deer resistant
Habit Over Time: Forms expanding clumps with multiple stems emerging from a slowly spreading root system. While it self-seeds enthusiastically in favorable conditions, vegetative spread is modest and controlled. The upright stems create good structure while allowing space for neighboring plants. Readily naturalizes but is not aggressive.
Height: Medium (2-3 feet)