One option is to dry the herb by hanging it upside down in a dark, cool place. Once the oregano is completely dry, you can store it in an airtight container.

Another way to store is to freeze it. Simply chop the herb into small pieces and place it in a freezer-safe bag. Frozen oregano will retain its flavor profile for several months. To use the frozen herb, simply remove the leaves from the freezer and chop as needed. There is no need to thaw first.

You can also make a flavorful oregano oil by steeping the herb in olive oil for several weeks. Store the oil in a dark, cool place and use it as needed.

Finally, you can also preserve it by pickling it. This method will require some advance planning, but it's well worth the effort.