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botanical name:
Lobelia siphilitica
Lobelia siphilitica © Deeproot Plant Base
common name:  Great Lobelia, Blue Cardinal flower
family:  Campanulaceae
characteristics: perennial
height: 0.90m
width: 0.60m
growth rate: medium
growth habit: erect
leaf colour: light green
flower colour: violet
main season: Summer
poison symbol poisonous or irritant
medicinal symbol medicinal
aspect: full sun, part shade
conditions: moist soil, wet/waterlogged soil, clay soil, sandy soil
preferred soil pH: any
minimum temp: -25°C
USDA zone: 4 to 8
Finely-toothed, lance-shaped, light green leaves. Spikes of tubular, blue-violet flowers in late summer. Moisture loving.

Likes rich, damp soil in sun or part shade. More tolerant of dryish conditions the Lobelia cardenalis. Prone to damage by slugs.

By seed or division.

Good as a marginal or bog plant and for moist, wild woodland gardens.
Used by the Native Americans as a herbal remedy for various ailments.

other notes:
Found wild in swamps, wet meadows and damp woods of North America.
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