Approximately 300 seeds per packet
Collected & Packaged: 2025
Germination code: 60C
Please refer to our germination codes and growing information for recommendations and tips.
Seed treatment recommended: these species require a minimum of 60 days of cold moist stratification to break natural seed dormancy and encourage germination. Alternatively, sow seeds in outdoor containers in the fall or winter, with germination occurring in the spring. Sometimes Lobelia will germinate in as little as 30 days of cold moist stratification, but we recommend 60.
Surface sow only: Lobelia species has small or tiny, dust-particle-sized seeds that require light to germinate. Sown seed should only be sprinkled over the surface of pre-moistened soil, and not covered or buried beneath the soil. Water lightly with a light spray or mist to keep the soil moist. Be careful when watering before germination occurs to not bury the seeds.
Our recommendation is to sow the seeds in a tray or small multi-cell containers. Divide young plants in late spring or plant the containers as they are.
Lobelia Medley Seed Packet
Virginia ecotype
- Names: Lobelia cardinalis (Cardinal Flower), Lobelia puberula (Downy Lobelia), and Lobelia siphilitica (Great Blue Lobelia)
- Size: 1 – 4 ft. tall, usually shorter
- Flowering time: May through October
- Bloom color: Scarlet red (L. cardinalis), pale to vivid reddish-purple (L. puberula), and bright violet-blue (L. silphilitica)
- Habitat: Ditches, streams, bogs, wet woods
- Moisture: Average to wet, well draining or poor draining; needs consistent moisture in summer months
- Light: Full sun to part shade, flowers best in full sun but needs more moisture
- Soils: Clay, loamy, sandy, gravely; adaptable so long as moist
- Uses: pollinator and hummingbird gardens, cottage gardens, lakes/ponds, water gardens, riparian areas, aquariums
This is a mix of three Lobelia species: Lobelia cardinalis (Cardinal Flower), Lobelia puberula (Downy Lobelia), and Lobelia siphilitica (Great Blue Lobelia). These species share habitat and condition preferences, but have distinctive bloom colors and characteristics, meaning they can be sown together in the same area for a showy splash of color where suited.Lobelia are riparian and wetland species known for their brilliant, tubular blooms highly attractive to hummingbirds and long-tongued bees and butterflies. While these plants prefer dampness, if established in the fall or early enough in the spring, many Lobelia can grow just fine in medium moisture soils, as long as the ground doesn’t dry out completely. This makes Lobelia a wonderful rain garden plant, or in an area that gets occasional drainage, such as by a ditch or downspout.
This species most often flowers in their second year from seed, overwintering as a clumping rosette to send floral spires up to 4 feet tall from late summer to early fall. Once finished, Lobelia seed pods are packed with thousands of dust-sized seeds. An ounce can contain around 400,000 seeds, so the species is able to readily self-seed itself in optimal conditions with low competition.

