Warrior fuel! Roman soldiers are said to have consumed fennel to make them strong and victorious on the battlefield. Today, the fennel plant provides leaves, bulbs and seeds for culinary use, the latter of which are usually dried for use as a spice. The medium sized seeds are a very pale green and can be used whole or ground. Fennel Seeds have mild anise flavour and aroma, which rarely overpowers. The seeds can also be roasted revealinga delicate, almost hidden sweetness.