Lemongrass sold by the weighed ounce.
The following is taken from a reputable web site but please do your own investigation:
Lemongrass is used as a fragrance and flavoring, and in folk medicine as an antispasmodic, hypotensive, anticonvulsant, analgesic, antiemetic, antitussive, antirheumatic, antiseptic, and treatment for nervous and GI disorders and fevers. Because there is little human evidence to support its effectiveness in an oral dosage, lemongrass may be considered a placebo.
Lemon grass features in Indonesian, Malaysian, Sri Lankan and Indian cooking and is widely used in savoury dishes and meat, poultry, seafood and vegetable curries. It harmonizes well with coconut milk, especially with chicken or seafood. The stems are also used in teas or used in pickles and in flavouring marinades.
Lemongrass is considered to be of low toxicity. Lemongrass should not be used in pregnancy because of uterine and menstrual flow stimulation.
Lemongrass can be taken as a tea with the recommended dosage of a warm cup of tea taken one to four times a day between or after meals, or as required. The infusion of coarsely cut or powdered grass is made using 2g of herb material to one cup of boiling water. The boiling water is poured over the herb material and extracted for 5-10 minutes and then strained. For hyperglycemia, dry extracts are recommended with the dosage of 80mg daily, taken in combination with other botanical extracts to support proper blood glucose levels.