Native Plant Database

Header Photo: Mervin Wallace

Blue Lobelia

Lobelia siphilitica
Plant Type: Herbaceous Perennials
Native Environment: Wetland, Stream Edge
Season of Interest: Late (July - frost)
Main Color: Blue
Fall Color:
Hardy From Zone:
Hardy To Zone:

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Hardiness Zones

Midwest map of zones 5 (north), 6, and 7 (south)

as defined by the USDA Plant Hardiness Zone Map; (hardiness zones are not recorded for all Grow Native! plants)
Sun Exposure 
Full Sun, Medium Sun/Average Shade
Soil
Moisture
Moderate, High, Wet
Nature Attracting
Butterfly, Hummingbird, Pollinators/Beneficial Insects
Wildlife Benefit
Food/Pollinators, Butterfly / Moth Nectar
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
Rainscaping, Fresh Cut Flower
Basic Description

Two-lipped blue flowers bloom in September and October. May self-seed in optimum growing conditions, forming attractive colonies. Short-lived perennial.

Where Should I Start?

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What’s the Next Step?

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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.

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