This is a wonderful combination of herbs for drying. Lavender and Mint. Select the Lavender after it has flowered, and the mint just before it flowers. In my herb garden that is happening simultaneously. Just hang them together in a cool dark place, or dehydrate them in a convection oven as I do to save time.
The scent of the Lavender and Mint combination is incredible. I used plain old Spearmint here, but you could create some really interesting combinations with some of the hundreds of varieties of mints that are available at garden centers these days.
Lavender flowers and leaves make a nice tea, especially when mixed with mint. Lavender is also used in aromatherapy for stress relief and to fight depression.
Sprinkle some of these dried herbs into a hot bath or just keep them in a small dish in the bathroom or bedroom.