So, here's how to avoid this. If your fennel has stalks and fronds still attached, remove these so that you are left with only the bulbs. The green fennel parts can be easily kept in a vase of ...

Fennel is of Mediterranean origin, and most of the plant is edible, even though the hollow fennel stalks can be a bit tough. The white bulb is my favorite part, which is the most flavorful.