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Deep blue
Perennial wildflower

Great Blue Lobelia

Lobelia siphilitica

Spikes of true blue for late summer shade and damp ground, worked hard by bumblebees.

the Northeastthe Mid-Atlanticthe Southeastthe Midwestthe Great Plains

Growing Great Blue Lobelia

Pairs beautifully with cardinal flower in the same moist conditions. Tolerates more shade than most blue-flowered natives. It’s deer-resistant, and showy.

Where it grows

Great Blue Lobelia is native to the Northeast. In the wild you’ll find it across Alabama · Arkansas · Colorado · Connecticut · Delaware · Florida · Georgia · Illinois · Indiana · Iowa and 32 more states. Always confirm it suits your specific county with your state native plant society before planting.

Regional Garden shows Great Blue Lobelia on 42 state pages.

Good for

Sourcing

Where to buy Great Blue Lobelia

Seeds & live plants on Amazon

Seed packets, plugs, and starter plants for many of these species ship to your door.

Browse on Amazon

Some links here are affiliate links — we may earn a small commission at no extra cost to you. The surest source of locally-adapted stock is a native-plant nursery or a native plant society sale in your area.

Plant it with

Companions & kin.

Natives that share Great Blue Lobelia’s range and conditions.

Perennial wildflower

Obedient Plant

Physostegia virginiana

Snapdragon-like pink spikes for late summer, beloved by bumblebees and hummingbirds.

  • Full–part sun
  • Average–wet
  • 2–4 ft
  • Blooms Aug–Sep
Perennial wildflower

Blue Vervain

Verbena hastata

Candelabras of tiny violet flowers for wet ground, working for small native bees all summer.

  • Full–part sun
  • Average–wet
  • 3–5 ft
  • Blooms Jul–Sep
Perennial wildflower

Culver's Root

Veronicastrum virginicum

Elegant white candelabra spires that bring vertical structure and a haze of bees to midsummer.

  • Full–part sun
  • Average–wet
  • 3–5 ft
  • Blooms Jun–Aug
Perennial wildflower

Dense Blazing Star

Liatris spicata

Vertical wands of magenta that open top-down and pull in every swallowtail in the neighborhood.

  • Full sun
  • Average–wet
  • 2–4 ft
  • Blooms Jul–Aug