Last week, I noticed that one of the sweet potatoes I'd had hanging around the kitchen for a while had sprouted. I had an extra flowerpot with soil in it already, so figured I had nothing to lose by planting it. It was the work of about a minute to lop off the sproutiest part, scoop out a cavity in the soil, and cover it up again. This is what it looked like last Wednesday, all purple stalks and tiny, pretty leaves.
And this is what it looked like this morning before I left for work, after a single week: