This drink cannot be bought, only grown — so if you don’t have a garden (a sunny windowsill will work too) then you’ll just have to buy a pick-up truck. It’s worth the trouble.
All you need is a sprig or two of fresh lemon verbena, a hardy, sun loving little herb with a fresh lemony scent. You will also need a few sprigs of mint. I like to combine spearmint with chocolate mint, but any variety will do. Go to your garden in the morning, harvest the fresh herbs, pour boiling water over them and refrigerate till you’re hot, sweaty and ready for a healthy, invigorating afternoon drink. Don’t add sugar, it will keep you from tasting the beautiful, subtle combination of flavors.
Mint is easy enough to find in stores but I’ve never seen lemon verbena for sale.