Lobelia siphilitica
Great blue lobelia
The spikes of brilliant true blue flowers on this wetland native attract butterflies, hummingbirds and neighbors to your garden! Lobelia siphilitica provides outstanding color for the border, wet meadow or pond edge. Naturalizes easily in moist soils, but tolerates periods of drought.
Height2-3 Feet |
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Spread12-18 Inches |
Bloom Color
BlueUSDA Hardiness Zone 4-8
Interesting Notes
Great Lobelia, the blue counterpart of the Cardinal Flower, can be found in open, moist places and blooms at the same time as Cardinal Flower. The Latin species name indicates that it was once thought that Great Lobelia was a cure for syphilis. The Native Americans of this region used Lobelia as an analgesic and as a treatment for many other common ailments. Wildflowers of Scott County
Growing and Maintenance Tips
Lobelia prefers moist, organically rich soil in shady to sunny areas. Tolerates drier locations than L. cardinalis, but insists on some afternoon shade in warmer zones. May self seed if happy.
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