The fuchsias have faded. The mums are in mourning. And winter is beginning to reach out its icy little fingers. I think we all can agree there’s nothing that adds a bit of curb appeal—summer or winter -- like some lovely, well-maintained, house-complementing planters. But in a cold snap that may well extend from November through April, you need to choose wisely to ensure that the arrangement doesn’t lose its luster by January, and isn’t so seasonal that it seems ridiculou