![]() ![]() The dominance of these pure-blooded Americans in strategic locations is not ideological sabotage. Squares, boulevards of many cities (especially ceremonial ones, near state institutions) are decorated with slender rows of blue pyramids. In general, this spruce is the most common in urban landscaping. It lives in the Western states of the United States – Colorado and Wyoming. The cone is the same shape as a regular spruce, but slightly smaller, and its scales are lighter, thinner and wavy. Its branches are bristled with stiff pointed needles 2-3 cm (1.2-1.6 inch) long. The bark is brownish-gray, rather smooth, thin, cracks into pieces, and resin oozes out of it. The cone hangs, matures in the fall, opens its scales, and pours out its treasures. The needles are tetrahedral or flat, with the keel sitting on an elevation (a fold of the bark) and for some reason turned upside down. Most of the varieties of firs that we call blue or even silver are derived from the forms called “glauca” in Latin. In botanical descriptions, they have the form:īut there are no clear boundaries between them. What color is considered blue is a personal matter for everyone. ![]() In some cases, this feature is due to light stripes-places of accumulation of stomata (holes for breathing), which stretch along the needles. This shade gives the needles an excess layer of wax, always covering it to varying degrees. And some species of fir can boast a bluish color as a characteristic feature. They are especially welcome in ornamental gardening. They are usually green, but some spruce species have blue shapes, sometimes found in nature. Today we will talk about blue Christmas trees, which are so popular with modern gardeners.
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