Herb growing tips

Annual herbs are meant to be cut and used often. Once an annual herb flowers, it will put all its energy into producing seeds and the leaves will wither. I find it's best to leave at least half of the foliage when you cut some off. If you find you are using it so often it is looking bare, have more than one plant. 

If you grow your herbs outside, and decide at the end of summer you don't want to bring them in, let it flower and put the whole seed head in a zipper bag and grow your own in the spring. Or you can leave the pot or ground alone until next spring and you will have volunteer plants.