Lobelia siphilitica / Great Blue Lobelia


A showy herb with spikes of sapphire blooms. In the wild, found in moist areas, especially swamps, seeps and stream edges. A great companion for its close relative, the crimson Cardinal Flower.

Traditional uses as a potent medicinal herb. Less preferred by deer but sometimes browsed.

Height: 1′ – 4′        Blooms: August

Siting: Average to moist soil, part sun to part shade

Deer Resistance: Moderate

Provenance: NJ


BONAP 2022 Lobelia siphilitica Native Range Map

Additional information


Quart, Cube, Quart