Cedar, Blue Atlas CedarIt's singular, it's colorful, it stately, and, above all, it's memorable. Blue Atlas Cedar, as it matures, is one of those plants that thrills the horticulturalist as much as the rawest of home gardeners. Its shimmering, deep blue, whorled needles may have something to do with that as they cling tightly in round bunches along stiff, angularly upright branches. These branches form an open, somewhat stiff, wide pyramid of a tree that is formal, yet open