Two-lipped blue flowers bloom in September and October. May self-seed in optimum growing conditions, forming attractive colonies. Short-lived perennial.
Native Plant Database
Header Photo: Mervin Wallace
Blue Lobelia
Lobelia siphilitica
Plant Type: Herbaceous Perennials
Native Environment: Stream Edge, Wetland
Season of Interest: Late (July - frost)
Main Color: Blue
Fall Color:
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Sun Exposure
Full Sun, Medium Sun/Average Shade
Soil
Moisture
Moderate, High, Wet
Nature Attracting
Butterfly, Hummingbird, Pollinators/Beneficial Insects
Wildlife Benefit
Butterfly / Moth Nectar, Food/Pollinators
Animal
Resistance
Deer Resistant, Rabbit Resistant
Size
Height:
24 to
36
inches
Spread:
12 to
18
inches
Size
Height: 24 to
36
inches
Spread: 12 to
18
inches
Size
Height: 24 to
36
inches
Spread: 12 to
18
inches
Typical Landscape Use
Provides late summer bloom in the perennial border, wild garden or native plant garden. Excellent for attracting butterflies and hummingbirds. Very happy near ponds or streams.
Establishment and Care Instructions
Grow in partial shade or full sun in moist soil. Occurs naturally in wet areas. Does not tolerate drought.
Special Features
Special Usage
Fresh Cut Flower, Rainscaping
Basic Description
Where Should I Start?
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Where Can I Find This Plant in Nature?
Learn about the Native Environment(s) inhabited by the plants in this database.