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Lobelia syphilitica
Common Name: Great Blue Lobelia Family: Campanulaceae (The Bellflower Family)

Lobelia syphilitica
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Once used to treat syphilis now it is used to grace gardens. The beautiful blue spikes of great blue lobelia do remarkably well without staking in sun to part shade. The blue is stunning against its pale green leaves and is useful to create a delphinium-like effect in shadier parts of the garden. Enjoys a moist soil but will do well in average sites as well.

Geogrpahical Origin:
North America
Native Habitat:
Moist to wet locations along streams, sloughs, springs, swamps, meadows and in low wooded areas.

ClassDeciduous  Primary Bloom ColourBlue 
TypePerennial  Secondary Bloom Colour 
Height2-4'  Bloom TimeSummer - Fall 
Spread12-24'  FragranceNo 
Light ExposureFull - Part Sun Sun Part Sun Part Shade  Foliage ColourGreen 
Soil MoistureMoist Average  Stem Colour 
Hardiness Zone BerriesNo 
BC NativeNo    

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Recommended Companion Plants:
Astrantia major "'Sunningdale Variegated'"
Aster divaricatus "'Eastern Star'"
Ligularia "'The Rocket'"

*The Plant Encyclopedia is updated each year to provide a close representation of our selection. Not all plants will be in stock at all times. If a certain plant is not available we might have a similar cultivar. We encourage you to email us at info at or call ahead to check availability (604) 270-4133.

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