Mint is great for a lot of things, but it's kind of a pain in the garden because it has no sense of boundaries and, given the chance, will spread everywhere. Which is why I, and a lot of other gardeners, usually grow mints in pots, to try to keep it at least a little bit contained.
But apparently in the past somebody at my apartment building was not so cautious. Next to the patio out back, there's a few inches of grass that escaped the lawn mower this summer, and in that grass some catnip and other mystery mint has sprung up. I pulled up the shorter stalks of catnip for my kitties, but I left the mystery mint and any flowering stalks out there for whatever pollinators are still hanging around. I know there are still plenty of bees and flies, and I've seen some white cabbage butterflies and last week I saw a monarch. Mint flowers are tiny (about 1/4 inch) but they grow in clusters, which make for convenient nectar gathering. There aren't a lot of flowers left this time of year, and mints are good nectar sources.
The catnip must be pretty primo stuff, since both the kitties went nuts over it, rolling around on the floor and tossing the catnip leaf up in the air like it was a mouse. Also, it makes Emily a little paranoid.
I let both the kitties have a few fresh leaves, but most of it I just hung up to dry. The oil rubbed off on my skin and my fingers still smelled like catnip for hours afterward, and whenever I tried to pet the cats they would wrap their paws around my hand and start licking or biting me.