The genus Pinus has 120 different pine species, all originating from the forests of the Northern Hemisphere. Pine needles are evergreen and range in color from yellow and brown to silver, gray and green. The fissured bark is divided into colorful plates for an interesting design. Pine trees are ideal planted as a windbreak, or among a backyard border as a focal point to the space.
The Himalayan pine is an evergreen tree with moderate to slow growth and yellow-tipped needles. The upright, graceful Himalayan pine has a pyramid shape when young and a wide-spreading, pendulous shape as it matures.
The Himalayan pine tree grows 30 to 50 feet tall and 20 to 30 feet wide, for a commanding presence to the landscape. The blue-green needles are soft and grow 5 to 8 inches long. Young needles on the Himalayan pine are erect and change to a drooping form as they mature. The cylindrical shape of the fruit grows 6 to 12 inches long and turn brown with age.
Himalayan pine trees require full sun to part shade and well-drained soil. They have a good wind tolerance and are able to withstand overly wet or dry soils, making them versatile. The USDA hardiness zone for planting is 5 to 7.
A slow-growing evergreen, the mugo pine has medium texture and a broad, spreading form that is low and bushy. Mugo pine trees grow 15 to 20 feet tall and 25 to 30 feet wide.
The dark green needles are fringed in brown to turn yellow in winter. The erect cones of the mugo pine tree are gray and black and grow 1 to 2 inches long. Mugo pine trees prefer full sun to partial shade and well-drained, moist soils. The USDA hardiness zone for planting is 2 to 8a.
Scotch pine trees are rapidly growing evergreen trees with medium texture. Their pyramidal form has short, spreading branches. The scotch pine grows 30 to 70 feet tall and 20 to 35 feet wide. The blue-green needles are tinged with yellow and grow 1 to 3 inches long. The cones on the Scotch pine trees grow up to 3 inches long and in groups of two or three.
Scotch pines are easy to transplant and ideal planted along the landscape for their open form. Scotch pine trees have brown to orange bark to contrast with the bright needles that remain with color all year long. Scotch pine trees require full sun and well-drained soils to thrive. They are adaptable trees that tolerate poor, dry planting sites. The USDA hardiness zone for planting is 2 to 8a.