A good method to deal with herbs that you don’t have immediate plans for is to dry them. Drying herbs is a great way to retain many of their properties while prolonging their shelf life. Once dried, herbs are best stored in airtight glass jars, away from direct light in a cool storage area. There are several methods you can use.
#1 Heat, forced-air dehydrator. Set the thermostat to between 90 – 100 degrees. Roots can take higher temperatures than delicate flowers or leaves. Turn the herbs several times to afford even drying. This can take up to several days depending on the plant and weather.
#2 Bunching herbs and hanging to dry. You can also tie the herbs into brown paper bags with holes to protect them from dust while still allowing ventilation. This method works well for sage, thyme, rosemary, savory, horsetail, etc. Keep them out of the sun while drying.
#3 In the oven, on very low heat with the door partially open.
#4 Sunny day. Hot car. Windows slightly open for ventilation. Lay herbs on racks or paper out of direct sunlight.
#5 Herbs in brown paper bags. Nettles dry well this way. Fill up the bag halfway and separate the leaves from the stems for faster and more even drying.
#6 Laying herbs out on screens. This allows for good ventilation and works well with flowers, though petals may stick to the screens slightly.