Sweet potato vines, Ipomoea batatas, is a commonly sold annual often planted in containers for summer color, as it comes in various leaf colors. Not winter hardy, seldom blooms and therefore not invasive. Slugs and snails love it, tho.

So at this point you are going to get between now and the first hard frost out of it, unless you dig it up in September and grow it through the winter in a greenhouse or similar environment.