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  • LOBELIA SIPHILITICA | Great Blue Lobelia
  • Great Blue Lobelia - LOBELIA SIPHILITICA
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Product Description

Lobelia named after the 16th century herbalist, Matthias von Lobel

Sun Exposure               Prairie, Savanna
Soil Moisture Wet, Wet Mesic, Mesic
Bloom Time

Summer, Fall                       July, August, September, October

Bloom Color Blue
Max Height 3 feet
Wetland Code FACW+
Germ Code  C(60),D
Seeds Per Packet  1,000
Seeds Per Ounce   500,000


Found in prairie swales and wet prairies, along streams and in seepage areas. Generally grows to 3 feet in height but can reach 5 feet or more under ideal conditions Numerous blue-violet flowers bloom from July through September.

Native Americans made a leaf tea to treat colds, fevers, stomach ailments, croup, worms and nosebleeds. The same tea was gargled to ease coughs. A poultice was made from the leaves to ease headache pain and assist in healing hard to heal sores. Once used to induce sweating and urination.

Edible Uses: Unknown

Medicinal Uses: The root is cathartic, diaphoretic and emetic. It is used in the treatment of dropsy, diarrhoea, stomach complaints, syphilis and dysentery. A poultice of the root has been applied to sores that are hard to heal. The leaves are analgesic and febrifuge. An infusion has been used in the treatment of colds and fevers. A poultice of the crushed leaves has been applied to the head to relieve the pain of headaches. At one time in N. America the root of this plant was believed to be effective in the treatment of VD. When used in Europe, however, it was found to be ineffective. This might have been because the N. American Indians used the fresh root (which still contained the volatile oils) and also used it in conjunction with Podophyllum peltatum and Prunus virginiana, and then dusted the ulcers with the bark of Ceanothus americanus.

It was believed by some native North American Indian tribes that if the finely ground roots were secretly added to the food of an arguing couple then this would avert a divorce and they would love each other again. A homeopathic remedy is made from the root.

Herbal Uses: Unknown

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