Great Blue Lobelia
Lobelia siphilitica
Tall spiky blue flowers, bloom in mid to late summer on top of a mound of round, bright green leaves. This plant can self-sow quite vigorously, so keep it deadheaded when it is done blooming. Requires partial shade and evenly moist soil conditions.
Height:
24-36″
Spread:
12-18″
Exposure:
Part shade
Soil:
Moist
Zone:
3-9
Information from Bailey Nurseries®