Mint is a great herb for novice gardeners because it's incredibly hardy and very easy to care for. Planters beware though, mint is terribly invasive and, if allowed, will take over your entire garden in no time. A while back, I made the mistake of planting mint in a raised bed, which quickly and unfortunately became my bed of mint. Years later, even after I've ripped it all out, more mint seems to miraculously sprout from the ground. So no matter how much you love Mojitos, unless you have a large spot where mint can spread vigorously without disturbing other plants in your garden, it's best to plant the herb in a container by itself. It'll fill the pot quickly and you can enjoy fresh mint all summer long.