How to Harvest Parsley
Parsley can be harvested throughout the growing season if care is taken to not take too many sprigs from the individual plants. Parsley is quite hardy and can be kept in the garden and will produce leaves until the harshest winter weather with the use of row covers.
I usually replant fresh parsley plants each year because I find that parsley roots that make it through the winter usually bolt sooner in the next season, producing tougher stems and early seed heads.
Method of Harvesting Parsley
Garden or Kitchen Shears
Gathering Basket, or suitable container for Parsley sprigs
Always gather Parsley in the morning, which it is at it's freshest, preferably after a rain or thorough watering the day before. After the dew has dried, harvest a few sprigs from each plant to use fresh throughout the growing season.
Parsley is one of the herbs that is quite cold hardy, and with a little care, you can harvest fresh parsley until the hard winter freeze, up north, and down south and in temperate zones, practically all year. Parsley can be harvested long after most other cold sensitive plants have been killed off by a hard frost, especially if you use a cold crop cover such as a plastic sheet draped over metal hoops forming a tunnel to protect the tender leaves from the harsh, cold winds of winter. Moving potted parsley indoors or in a well sheltered place will also extend your parsley harvest well into the colder months.
In the fall, the whole plant can be dug up, as the roots resemble carrots and are an excellent source of vitamins and minerals when added to soups and stews or vegetable sautes. I find that if I let my parsley winter over, it goes to seed quite early and the stalks become woodier. I prefer to plant new seedlings every year to assure an abundant supply for the year. It is easy to start from seed or readily available in garden plant suppliers.