The following article is about healthy eating
Parsley – Why Does It Have To Be Replaced Annually?
Parsley, Italian and Curly, are not annuals which confuses many customers as to why each year they have to replace them. Parsley is a biennial, a plant that lives for two years, however the second year the plant is not intent on producing leaves but is set on survival and the energy of the plant is directed towards seed production.
Herbanites buy most of their herbs so they can use the leaves either for culinary purposes or potentially for aromatic, decorative everlasting arrangements. Most herb seeds are for regeneration with some exceptions such as cilantro where the seed becomes the spice, coriander. Once the plant no longer is producing leaves then the practical use of the plant is lost for most people who use herbs for cooking. Parsley is a great "blender herb" for any Herbanite gardener. Parsley can enhance milder herbs, or subdue the stronger herbs which is why it is referred to as a blender herb.
Parsley leaves are the desirable part of the herb plant however the stalk is used often especially in tabouli after it is coarsely ground. The leaves of the parsley plant are most abundant in the first year and are practically non-existent in the second year of life. Parsley will survive a second season but only to become long and spindly, hardly any leaves and a long, extended stalk with possibly 3-4 leaves at the end. As soon as possible the plant will develop seeds and then dies. There is hardly any practical use whatsoever for a second year parsley plant simply because there are no leaves and the stalk does not provide the culinary benefits.
This is the reason, for the Herbanite, that parsley is considered an annual and not what it truly is, a biennial.
Written by Bob G Johnson
Original Source: http://ezinearticles.com/?Why-Italian-Parsley-and-Curly-Parsley-Have-to-Be-Treated-As-Annuals&id=4413703