Use the Lemon grass...

 

Lemongrass is native to India and tropical Asia. It is widely used as a herb in Asian cuisine. It has a subtle citrus flavor and can be dried and powdered, or used fresh. Lemongrass is commonly used in teas, soups, and curries.
An herb is a plant whose leaves, seeds, or flowers are used for flavoring food or in medicine. A common ingredient in Thai and Vietnamese cooking, among other Asian cuisines. Lemon grass is used as a flavoring agent.
The light lemon flavor of this grass blends well with garlic, chilies, and cilantro. The herb is frequently used in curries as well as in seafood soups.
It is also used to make tea.