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Lobelia siphilitica

Is Lobelia siphilitica growing in your garden? Record it and all of your plants in Known.

Names

Common Names
Great Blue Lobelia, Blue Cardinal Flower, Great Lobelia, Tall Blue Lobelia, Virginia Bellflower, Vomit Root

Growth

Height
24-36 inches
Spread
8-17.5 inches
Growth Rate
Moderate

Appearance

Bloom Color
Blue (pale to dark blue; white forms occasionally found)
Foliage Color
Green
Fall Foliage Color
Green

Environment

Hardiness Zones
Zones 4a-9b
Sunlight Requirements
Ideally full Sun to partial shade.
Soil Type
Moist, rich soil, preferably clay or loamy, with tolerance for occasional standing water; adaptable to all soil types but moist or wet soil is preferred.
Soil Drainage
Moist but well-drained soil
Soil pH
6.0-7.0 Acidic to neutral

Lifecycle

Lifecycle
Perennial
Leaf Lifecycle
Deciduous
Seasons of Interest
Summer and Fall
Bloom Time
Summer to Fall

Wildlife

Attracts Wildlife
Bees, butterflies, hummingbirds, and other pollinators are attracted; hummingbirds are among the birds attracted.

References

References

Taxonomic data from World Flora Online, accessed June 20, 2024