Great Blue Lobelia
Perennial

Great Blue Lobelia

Lobelia siphilitica

Intense blue flower spikes that hummingbirds and bumblebees fight over in late summer. The bolder, taller cousin of cardinal flower.

Bloom Season
Aug - Sep
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Sun Requirements
Part Shade2-4 hours
Part Sun4-6 hours
Water Needs
High
Consistently moist
Size & Zones
2-3' tall
USDA Zones 4-9
Bloom Colors
Blue
Traits
Native Species Pollinator Friendly Hummingbird Magnet Deer Resistant
Soil
LoamClay
Pairs Well With
Turtlehead
Perennial
Joe-Pye Weed
Perennial
Astilbe
Perennial
Iris
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Explore More
ColorBlue flowers
TypeAll perennials
TraitsNative SpeciesPollinator FriendlyHummingbird MagnetDeer Resistant
MonthsWhat blooms in AugWhat blooms in Sep
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