Lobelia siphilitica - Great Lobelia

Great Lobelia or Great Blue Lobelia is a native wildflower typically found in wet areas, woodlands and meadows. Covered in pale purple to blue flowers, it adds color and diversity to plantings. 

For a lovely lobelia garden, consider planting this with Cardinal Flower (Lobelia cardinalis). 

It attracts hummingbirds and is beneficial for many bee species and other pollinators.

Grows well in areas that receive at least 4 hours of sunlight a day. Have a shadier area? check out our Woodland Edge Native Seed Mix. A diverse mix of native grasses and wildflowers for the less sunnier areas of your landscape.

How To Plant Great Lobelia Seeds:

Direct sow seeds into prepared soil in late fall once soil temps are below 50 degrees (usually mid to late November). Can also be planted in winter during natural freeze/ thaw cycles and early spring. Plant shallow, no deeper than 1/8 to 1/4 inch deep and lightly rake to work seed in. Plant in full sun to partial shade. Can take three growing seasons to fully establish. 

What is Stratification?

Seed Info

Please Note: Your envelope will contain approximately 50 seeds. There are about 470,000 seeds in an ounce of Great Lobelia. A little goes a long way! 

Seed Envelopes contain approximately 0.02 ounces of seed and cover about 5 to 10 square feet. 

Product Details 

Flower Color: Blue

Height: 1 to 4 Feet

Light Requirements: Full Sun to Shade

Soil Hydrology: Mesic to Wet Soils

Bloom Time: July to September

Plant Type: Perennial

Stratification: Cold Moist (CM) 60 Days

Attracts: Birds, Hummingbirds, Bees, Butterflies

Product Code: LOB02F