Lobelia
Lobelia erinus (and other spp.)
Lobelia produces masses of small, delicate flowers in brilliant blues, purples, and whites. They symbolize malevolence historically, but also love and devotion.
Campanulaceae (Bellflower family)
Late spring to fall frost (May-October), continuous blooming in cool weather
Symbolism & Meanings
Key Meanings
Perfect For
Color Meanings
Similar flowers: carnations and roses also share similar meanings.
Cultural Significance
Named after Matthias de Lobel, a Flemish botanist. In Victorian flower language, blue lobelia symbolized malevolence, but modern interpretations focus on its delicate beauty and association with love and devotion.Botanical Information
Physical Characteristics
Natural Habitat
Growing Guide
Sunlight
Full sun to partial shade (benefits from afternoon shade in hot climates)
Water
Consistent moisture; does not tolerate drought or waterlogging
Soil
Well-draining, Rich, Moist, Organic matter, Slightly acidic to neutral (pH 6.0-7.0)
Expert Growing Tips
Start seeds indoors 10-12 weeks before last frost
Keep soil consistently moist but not waterlogged
Provide afternoon shade in hot summer climates
Pinch back leggy growth to encourage bushiness
May need replanting in midsummer in hot areas
Uses & Benefits
Ornamental Uses
- Edging and border plantings
- Hanging baskets and containers
- Rock gardens and crevices
- Ground cover in cool, moist areas
- Window boxes and small space gardens
Traditional Uses
- Some species (L. inflata) historically used medicinally but are toxic
- Native American traditional uses for respiratory ailments (dangerous)
- Contains alkaloids that are poisonous - not for consumption
Disclaimer: Information provided is for educational purposes only. Consult healthcare professionals before using any plant medicinally.
Further Reading
Frequently Asked Questions about the Lobelia
why do my lobelia plants stop blooming in summer?
Lobelia prefers cool weather and may stop blooming in hot summer heat. Provide afternoon shade, consistent moisture, and consider replanting for fall blooms.
can lobelia survive winter?
Most garden Lobelia (L. erinus) are grown as annuals and won't survive frost. Some perennial species like Cardinal Flower can overwinter in suitable zones.
what does lobelia symbolize?
Lobelia historically symbolized malevolence in Victorian times, but modern meanings focus on love, devotion, and delicate beauty.
how do you keep lobelia blooming all season?
Keep soil consistently moist, provide afternoon shade in hot climates, deadhead spent flowers, and pinch back leggy growth to encourage new blooms.
Available Colors
Quick Facts
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