If you visit your local garden center right now, you’re likely to find a plentiful selection of cool-season annual herbs such as dill, fennel, cilantro and parsley — along with perennial herbs like ...

Tarragon is a perennial from the Asteraceae family, while dill is an annual Apiaceae herb. Other than sharing vibrant green hues, their structures are quite different. Tarragon sports flat, thin ...