It's odd to think that carrots, dill, and fennel are all in same family because they have such distinctly different flavors, but fennel fronds are often mistaken for dill plants. Fennel has a fresh licorice flavor in both the lacy fronds and the thick bulbs. The greenery can be harvested at any time, to be added to salads or cooked dishes, but leave at least half the foliage for continued growth. Bulbs form in cool weather conditions, so plant soon after your average last spring frost date. Apparently fennel is not compatible with standard vegetable garden plants such as tomatoes, beans, and cilantro, so consider growing it in containers.