Lobelia Seeds - Great Blue Lobelia


Lobelia siphilitica

This Eastern US native perennial, also known as Blue Cardinal Flower, is a favorite of pollinators and thrives in moist soils along water edges and low-lying areas. Plants grow 2-3 feet tall, and its tubular blooms appear in late summer to fall. It prefers to grow in shade, but can tolerate full sun in cool climates. Avg. 400 seeds per 0.04 g packet.
Great Blue Lobelia seeds should be cold-moist stratified for 60 days before planting. Sow seeds indoors 4 to 6 weeks before last frost, and plant out after all danger of frost has passed. Tiny seeds require light to germinate, so they should be surface-sown and watered with a mister bottle.

SMALL FARM GROWN by Wildbud Natives, Marshall, NC

  • Planting Information
Packet WeightSeeds/Packet Lifecycle Stratification?
0.04 g 400perennial60 days wet-cold
Sowing MethodSeed DepthDays to SproutMature Spacing
Sun RequirementFrost Tolerance Bloom SeasonSpecial Notes
shade-part shadedies back in winterJuly-Septtolerates wet soil