Alien beings have moved in next door. My family is justifiably concerned. We know they're not from around here because of all the weird plants they've brought with them--lilac, paper birch, blue spruce, delphinium. Word has it our new neighbors come from a planet named Wisconsin.

Alien plants from the North look nice when first set out. But they usually can't hack the South's hot, humid summers and short, mild winters. So they either fail to bloom, fail to thrive, or simply croak. Why, then, do aliens keep trying?