Norway Spruce is readily identified by its dark green color,and drooping branchlets, . The leaves are needle-like with blunt tips, 12–24 mm (15⁄32–15⁄16 in) long, quadrangular in cross-section (not flattened), and dark green on all four sides with inconspicuous stomatal lines. The seed cones are 9–17 cm (3 1⁄2–6 3⁄4 in) long (the longest of any spruce), and have bluntly to sharply triangular-pointed scale tips. They are green or reddish, maturing brown 5–7 months after pollination. The seeds are black, 4–5 mm (5⁄32–3⁄16 in) long, with a pale brown 15-millimetre (5⁄8-inch) wing.
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is a type of evergreen coniferous tree that is native to the Drina River valley in western Serbia and eastern Bosnia and Herzegovina. It is scientifically known as Picea omorika and belongs to the Pine family 12. Serbian spruce is valued for its graceful shape and glossy needles with silvery undersides. It typically grows to 50-60 feet tall in cultivation but will rise to as much as 100 feet tall over time in its native habitat 1. The tree’s tolerance to drought makes it an adaptable specimen for street planting or the yard 3. Serbian spruce is also known for its two-inch cones that provide winter interest to the landscape. They start as purple but age to reddish-brown 3.
The Colorado Blue Spruce tree is one of the most popular ornamental conifers. Blue Spruce range in color- from green, green/ blue to silver blue in color. The needles are stiff, prickly and about 1 to 1-1/2 inches in length. The Blue Spruce has a nice pyramidal shape with strong limbs that can hold heavy ornaments. The Blue Spruce is known for its lovely blue foliage which can also appear silvery. Commonly known as a Colorado Blue Spruce is a medium-sized coniferous evergreen tree growing to 82–98 ft tall, exceptionally to 151 ft tall, and with a trunk diameter of up to 4 ft 11 in. The bark is thin and gray, with narrow vertical furrows. The crown is conic in young trees, becoming cylindric in older trees. The shoots are stout, orange-brown, usually glabrous, and with prominent pulvini. The leaves are 1.5 to 2 inches long, dagger shaped, sharply mucronate, lanceolate, sessile, acuminate, deflexed, rigid, coriaceous, somewhat serrulate, very numerus, bright green above and slightly glacous below. The leaves are needle-like, 0.59–1.2 in long, stout, rhombic in cross-section, dull gray-green to bright glaucous blue (very variable from tree to tree in wild populations), with several lines of stomata; the tip is viciously sharp. The cones are pendulous, slender cylindrical, 2.4–4.3 in long and 0.79 in broad when closed, opening to 1.6 in broad. They have thin, flexible scales 20.79–0.94 in long, with a wavy margin.
Concolor Fir is a favorite Christmas tree among discerning buyers. The needles of the are silvery blue to silver-green; flat; blunt; 2 to 3 inches long. Concolor fir, also known as a White fir, is popular as a Christmas tree and for Christmas decoration owing to its soft needles, generally excellent needle retention and abundance. The leaves are needle-like, flattened, 1.0 to 2.4 inches long and .08 inches wide by .02 to .4 inches thick, green to glaucous blue-green above, and with two glaucous blue-white bands of stomatal bloom below, and slightly notched to bluntly pointed at the tip. The leaf arrangement is spiral on the shoot, but with each leaf variably twisted at the base so they all lie in either two more-or-less flat ranks on either side of the shoot, or upswept across the top of the shoot but not below the shoot. The cones are 2.3 to 4.7 inches long and 1.5 to 1.7 inches broad, green or purple ripening pale brown, with about 100-150 scales; the scale bracts are short, and hidden in the closed cone.
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The Canaan Fir is a stately fir that boasts dense, dark green to bluish fragrant foliage. With excellent needle retention, it is a sought after choice for Christmas tree production. A fine addition to your landscape whether in groups or as a single specimen. Needles are about an inch in length and cones are 3-4", growing upright on its branches. While similar to the Fraser and Balsam Fir in appearance and growth habit, the Canaan Fir will grow in heavier soils as well as soil with a higher pH level. Avoid heavy wet clay. Since this tree exhibits a later bud break, the Canaan Fir is less susceptible to spring frost injury. Fairly deer resistant. Drought tolerant once established.