Hybrid Lobelia
Hybrid Lobelia is a flower in the Campanulaceae family. It grows best in full sun to part shade with medium to wet moisture, and is listed for USDA zones 6-10. Plants reach maturity about 77–84 days after planting and sit about 6 inches apart.
Varieties
1 from True Leaf Market · sorted by days to maturity▸Vulcan Red77–84 days
Non-GMO; Container; Annual; Perennial
77-84 Days to maturity. Lobelia speciosa. Vulcan Red Lobelia Seeds. Non-GMO, open-pollinated, Premium Quality Seeds, perennial. Open Pollinated. Vulcan Red Cardinal Flower seeds deliver exotic, early-blooming, and easy-to-grow lobelia plants for especially hot, humid gardens across the country. Vulcan Red lobelia seeds mature into a robust, columnar form for indoor planters or as trimming to your flower bed. Vulcan Red grows one of the most dense and unique blooming stalks in any garden, and certainly one of the most vibrant. Vulcan Red lobelia seeds are the perfect eye-catching centerpiece to your summertime baskets, bouquets, and arrangements. Pelleted seeds with an inert clay coating for easier planting and visibility.
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Plant spacing
In a square-foot bed, space hybrid lobelia about 6 in apart — that fits 4 plants in each 1-foot square (2×2). Wider rows or containers space the same.
Plan your hybrid lobelia planting
Add hybrid lobelia to a free GardenDraft plan and get sow, transplant, and harvest dates computed for your ZIP code — with a drag-and-drop bed layout and reminders when it’s time to plant.
Start your free plan →At a glance
Growing timeline
Care & troubleshooting
No curated care & troubleshooting advice for hybrid lobelia yet. Our extension-sourced library currently focuses on common edible crops; we're expanding it over time.