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Great Blue Lobelia (Lobelia siphilitica)

Great Blue Lobelia (Lobelia siphilitica)

Lobelia siphilitica offers a deep-hued counterpoint to the yellows of late summer. This colony-forming, short-lived perennial grows well in medium to wet soils, especially with a little shade. In its native range, Great Blue Lobelia can be found in wet prairies, soggy meadows, pond and creek edges, marshland borders, and other moist areas. 


Great Blue Lobelia grows large, richly-flowered spikes. The deep blue-violet flowers on these spikes attract many bees, butterflies, and hummingbirds. Lobelias produce a secondary compound known as "lobeline," which deters herbivores.


Zone: 4 to 9 

Height: 2.00 to 3.00 feet 

Spread: 1.00 to 1.50 feet 

Bloom Time: July to September 

Sun: Full sun to part shade 

Water: Medium to wet 

Maintenance: Low

Tolerate: Deer, Heavy Shade, Wet Soil


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