Any advice on spearmint growing? Someone gave me a spearmint plant for a gift, and I loved it. It gave off a great fragrance to my living room, and you could just break off a piece here and there to put in your tea. However, those annoying little gnats LOVED it too, and they ate it up. Literally. Those pesky things are unavoidable in Texas, and I'm so used to them, but I'd like to grow spearmint without the fear that it'll be eaten away. How would you grow a spearmint?