Great Blue Lobelia
Herbaceous perennial reaching 60-120 cm tall. Features lance-shaped leaves and tall spikes of brilliant blue flowers in late summer. Prefers moist to wet soils and partial sun to partial shade. Forms clumps through basal renewal. Important late-season pollinator plant. Suitable for rain gardens, pond edges, and moist meadows. Native to eastern and central North America.
Plant Details
Bloom Colour: Bright Blue
Bloom Time: Late Summer to Fall
Sun Requirements: Part-Sun to Part-Shade
Moisture: Moist to Wet
Phenology: Basal rosette emerges April-May. Flowering stems develop July-August. Brilliant blue flower spikes appear August-October. Seeds mature and disperse October-November. Basal leaves may persist through mild winters.
Wildlife Value: Important late-season nectar source for butterflies and bees; seeds eaten by finches and other small birds; supports late-flying pollinators
Habit Over Time: Creates clumps through basal rosette renewal and limited rhizomatous spread. Self-seeds moderately in moist conditions to slowly expand colonies.
Height: Medium to Tall (2-4 feet)