The bulb catalogs have started arriving! And what a smart move, as we're all seeing those heralds of spring popping up with the melting of the snow. Usually, it's the big, bold blossoms that catch our eyes; the Tulips, Daffodils, and Hyacinths are what most of us think of when we think of spring bulbs. But don't overlook the diminutive little guys that, when planted thoughtfully, can provide stunning visual impact.