In a sealed container out of direct sunlight.
Fennel
Store fresh fennel in the refrigerator crisper, where it should keep fresh for about four days. Try to use it soon after purchase, because as it ages, it tends to gradually lose its flavor. While you can blanch and freeze fresh fennel, it may lose much of its flavor during this process. Store dried fennel seeds in an airtight container in a cool and dry location where they will keep for about six months. Storing fennel seeds in the refrigerator will help to keep them fresher longer.
Some recipes that highlight the unique flavor of fennel seeds include roasted fennel with Parmesan, fennel seed-crusted pork tenderloin, and fennel seed biscotti.
The Tamil name for fennel seed is "Perunjeeragam."
Fennel can be found in most grocery stores, such as Walmart, Whole Foods, Kroger, and Trader Joe's. It is commonly sold in the produce section with other fresh herbs and vegetables. Specialty stores, farmers markets, and online retailers may also carry fennel.
Both aniseed & fennel have the same flavour & taste. Only difference is that the fennel seed is smaller, also called Vilaithi Sauf.
Tarragon can be substituted for anise seed. Another substitute can be fennel seed. Try a pinch of crushed fennel or anise seed as a substitute for a teaspoon of tarragon.
Saunf is called fennel seeds in English.
soump
The Telugu translation for fennel seeds is "సొప్పు" (soppu).
Anise seed will substitute for fennel seed--use about half as much. Fennel seed is readily available at mid-east or Asian markets and it's very cheap.
it is perunjeerakam in tamil........