Great Blue Lobelia

Lobelia siphilitica
$29.99
$34.99
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Sourced ecologically
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Delivered to Your Door
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Easy Planting
About this Plant

Great Blue Lobelia (Lobelia siphilitica) is a vibrant, moisture-loving native perennial that brings striking blue flowers and rich wildlife value to partially shaded garden spaces. Ideal for gardeners looking to add late-season color and pollinator support to rain gardens, woodland edges, or other consistently moist areas.

Blooming from late summer into early fall, Great Blue Lobelia produces upright spikes of deep blue flowers that are especially attractive to bumblebees, butterflies, and hummingbirds. Growing to 2–3 feet tall, it holds its own in layered plantings and pairs beautifully with other wet-loving natives like Cardinal Flower or Blue Flag Iris.

This plant thrives in moist to wet soils and performs best in part shade to filtered sun, making it a great solution for low spots, pond edges, or shaded borders where other plants may struggle.

Why Choose Great Blue Lobelia?

  • Brilliant late-season color – Rich blue blooms add contrast in late summer.
  • Pollinator-friendly – Supports hummingbirds, bees, and butterflies.
  • Moisture-loving & adaptable – Thrives in rain gardens and shady, wet soils.

Plant Great Blue Lobelia in moist, partially shaded areas for a low-maintenance native standout that supports pollinators and livens up the late-season garden.

Maintenance Tips
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  • FALL to SPRING - Over the winter, Great Blue Lobelia persists as a low-growing rosette of green leaves. To prolong this plant's life, brush aside any leaves or debris that cover its basal rosette.
  • Seedlings can be removed to prevent spread
Details
Soil Types
-
Soil Moisture
-
Sun Exposure
-
Hardiness Zone
USDA 3–9
Plant Type
Flower
Mature Height
-
Mature Width
-
Bloom Color
Blue
Bloom Time
-
Root Type
Fibrous
Great Blue Lobelia
$29.99$34.99
Ecological Benefits
Soil Stabilizing
Deep roots help prevent erosion and stabilize soil.
Deer Resistant
Less likely to be browsed by deer.
Birds
Seeds or berries provide food for birds.
Pet Safe
Non-toxic to cats and dogs.
Attracts Pollinators
Provides nectar and pollen for bees and other pollinators.
Attracts Butterflies
A nectar source that draws butterflies throughout the season.
Attracts Hummingbirds
Nectar-rich blooms that draw hummingbirds to your garden.
Yard Friendly
A well-behaved growth habit that won't take over your yard.
Butterfly Host
Supports butterfly caterpillars as a host plant.

What Folks Are Saying

“It's like following a recipe. Choosing from multiple designs is fun.” - Kari
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“I can't believe that we are the house with this beautiful garden.” - Howard
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“I've never planted anything in my life. And this was actually quite fun.” - Steve
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