Great Blue Lobelia (Lobelia Siphilitica) is a perennial herb in the Campanulaceae family with easy care difficulty. It requires high watering and full sun or partial shade light in USDA hardiness zones 4-9. This plant is toxic to cats and dogs — keep it out of reach of pets.
A clump-forming perennial with striking blue, tubular flowers and lance-shaped leaves.
Great Blue Lobelia
Lobelia Siphilitica
A clump-forming perennial with striking blue, tubular flowers and lance-shaped leaves.
Quick Facts
Safety
Growing Conditions
Care Calendar
Monthly care tasks for Great Blue Lobelia
Expert Care Tips
Pro tips from botanists and plant experts
Watering Tip
Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.
Humidity Trick
Group plants together to create...
Growth Hack
Rotate your plant every...
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