Lobelia siphilitica

Blue Cardinal Flower, Great Blue Lobelia

In Stock: 0.182 lb (Total:0.182lb)
  • Lobelia siphilitica

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0.18 lb


Germination test:
Seeds per lb:
0.18 lb
Collected in:
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Growing Info

Scarification: none required
Stratification: cold stratify for 60 days
Germination: surface sow and keep moist, tamp the soil, requires light for germination

Discover the beauty of Great Blue Lobelia (Lobelia siphilitica), a stunning perennial flower native to eastern and central Canada and the United States. This herbaceous plant, belonging to the Campanulaceae family, thrives in moist to wet soils in zones 4 to 9. Growing up to 3 ft tall, it is an impressive addition to any garden.
In late summer, Great Blue Lobelia produces a spike of zygomorphic flowers, adding a pop of vibrant color to your outdoor space. Its blooms, lasting from August to October, attract bees and other insects for pollination. While this plant is self-compatible, it relies on these pollinators for effective reproduction.
Not only is Great Blue Lobelia visually striking, but it also has a rich history. Some Native American Indian tribes believed that the finely ground roots could prevent divorces and reignite love between arguing couples when secretly added to their food.
The medicinal uses of this plant add to its allure. The root has been used as a cathartic, diaphoretic, and emetic, while the leaves are known for their analgesic and febrifuge properties. Infusions made from the leaves have been effective in treating colds and fevers. Additionally, a poultice of the root or crushed leaves can alleviate headaches and heal difficult-to-treat sores.
Embrace the beauty, history, and medicinal benefits of Great Blue Lobelia in your garden. Order your seeds today and create a stunning display that will leave a lasting impression. For more information, visit our website.

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