If your fennel bulb comes topped with healthy fronds, feel free to chop those along with the herbs. If you are not a fennel fan then use leeks as a replacement.
The salad can be served warm or cool; do, however, make sure to add the radish, fennel and herbs just before serving so that they retain their contrasting crunch. I like it warm having dressed the potatoes when they are warm.
This is a great salad to make for a crowd and goes brilliantly with meat off the BBQ. However it is delicious in its own right and a good veggie alternative.