If you're in the Chicago area, for next year's planting try Gethsemane for a large variety of caladiums. They are started by bulbs, so you can also purchase them that way from Home Depot. It's cheaper to buy them as bulbs, I did a container that way last year and they turned out great and were very quick to grow. I love the variety of color in the leaves. Plus, I'm a sucker for green and pink...
I've only used caladiums in pots so far and they've done quite well. Here are a few examples from around the web.
I think this is my favorite, just gorgeous (and huge)!
Next year I'd really like to try incorporating these in our shady backyard. They're an annual, so you'd have to plant each year, but they look awesome!
Anyone have any shade favorites they like to plant? Please share!