Lobelia siphilitica

Growing Information

Plant Type: Perennial
Sunlight: Prefers full sun to part shade.
Soils: Moist, well-drained soils
Bloom Time: Late summer blossoms – July, August, September; vivid blue flower
Size: 1-3 feet in height, 1 foot spread

In average soil conditions, you may need to water occasionally—don’t let it dry out. Most striking when planted in mass, rather than a single plant. Pollinators love it.

Garden Companions

Flowering Spurge (Euphorbia corollata); Flat-topped Aster (Aster umbellatus); Spotted Joe Pye Weed (Eupatorium maculatum); White Turtlehead (Chelone glabra)

Nature Benefits

• Bumblebees, other bees, hummingbirds, and butterflies

Native Habitat

Occurs naturally in swamps and wet meadows.

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Photos