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Flora Database

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Plant Name:

Great Blue Lobelia

Scientific Name:

Lobelia siphilitica


Great Blue Lobelia is a perennial wildflower with tall spikes of blue-violet flowers.


Wetlands, stream banks, moist areas, woodland edges


Great Blue Lobelia attracts hummingbirds, butterflies, and other pollinators. It provides habitat and nectar sources for these pollinators.

Growing Conditions:

Great Blue Lobelia prefers moist to wet soils and partial shade to full sun.


Great Blue Lobelia is used in native plant gardens, rain gardens, and natural landscapes. It has medicinal uses and is cultivated for its ornamental value.

(please exercise caution and consult additional sources or experts before consuming any vegetation):


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Fun Facts:

Great Blue Lobelia is sometimes called "Blue Cardinal Flower" due to its vibrant blue color.

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