To Buy: 
Buy dried. Comes in whole anise seeds or as ground aniseed. 
To Store: 
To keep your spices fresh, store them in an airtight container in a dark cupboard away from extreme heat.
Tips & Tricks: 
Traditionally used with vegetables that have a tendency to be indigestible such as cabbage, onion, cucumber, carrot, turnip and beetroot.
Cooking Tips: 
Add to breads and biscuits to impart a slight licorice flavour. 
Add star anise to clear soups - remember to remove before serving.