When we’re young, we “learn our colors”; when we start gardening, we have to learn them all over again. Well, some of them are the basically the same: white is white, pretty much, and most of us are pretty confident in describing a flower or leaf as red, orange, yellow, or green. When we start getting into blue and purple, though–particularly in catalog descriptions–it’s practically a free-for-all. “Blue” can mean anything from grayish green to a sort of lavender-pink to the blue we learned as a primary color to a distinctly purplish blue. Our purple, too, is often very different from what non-gardeners might describe as that color: “Purple” flowers and foliage may be anything from deep red or burgundy to chocolate brown to a purple so dark it is practically black.