Evergreen Trees Guide for Your Garden
Evergreen shrubs and tress cost much more than the deciduous trees. However there are worth the money because their hardiness and beauty are present throughout the year. They also have a long life. The range of evergreen is enormous. They can be shrubs like the rhododendron and can also be the stately spruces and tall pines. The firs and spruces are used as windscreens. The spreading evergreen shrubs are quite popular because they look attractive and can also be used for shade.
One of the most popular evergreen trees is the Pine. White pine can attain a height of sixty to eighty feet when it fully matures. It has soft, long silver coloured needles. The pines (both white and red) are used for windbreaks and backgrounds. Ponderosa pine is a big, broad variety which is used for ornamental screens and protection. Globe mugho is a small pine tree which is used for ornamental planting. Austrian pine is found in the Midwest. It green coloured branches are spreading in nature.
The evergreen tree which is most commonly used for windbreaks is the Norway spruce. It grows quickly and it has dark green coloured short needles. The needles have a pyramidal shape. One of its varieties, the Black Hills spruce is hard and resistant to drought. It can reach up to 40 feet in length. It grows slowly. White spruce reaches a height of 60 to 70 when it is fully matured. Its needles are thick and light blue green coloured. It is commonly used for screens and landscaping. Colorado blue spruce is hardy and is an excellent choice for specimen tree however its biggest disadvantage is that it cannot survive in drought and heat. The red cedar is used for windbreaks and hedges. It is popular evergreen ornamental plant. It can survive well in dry months. It has rich green coloured foliage which attains a bronze colour during the winter months.
The most popular fir used for screening and windbreaks is the Douglas fir. This quick grower is resistant to drought and is hardy too. It used commonly as lawn specimen because of its lofty pyramid. Balsam fir, also known as the Christmas tree is known for its lustrous foliage and fragrance. White fir is a silver coloured plant which is used as a specimen.
You can see the evergreen flat branches of Arbour vitae in the flower decorations during Christmas. This ornamental plant has a number of varieties. It grows well in moist places. It can reach a height of 35 to 50 feet if it is not trimmed.
The plants belonging to the family juniper are widely used in planting. Its tall varieties like the upright juniper and columnar juniper or the spreading varieties like the Pfitzer juniper are all used for edgings, ground cover and banks. It has feathery, green coloured foliage which grows quickly. It can grow up to eight feet in length. Some junipers cover the ground like prostrate, Waukegan and Sergeant.
Hemlock is yet another evergreen family which has feathery foliage. It has maximum efficiency when it is put in a grove with other plants. The Canadian hemlock can be trimmed to give it a symmetrical shape.
Yew grows well under shade as well as sunshine. It has shiny, thick needles. It is used both as a tree and a shrub. It is used in foundation planting. It can also be planted as a single species. Trimming is possible with the low-spreading bushy dwarf. Japanese yew is one variety which is used for hedges. Upright yew is yet another type of Yew.
Evergreen trees require extra care during the summer season. They are easily affected by the hot and humid climatic condition and thus they need to be watered every ten to fourteen days during the summer months. However water should reach up to the deep roots (6 inches minimum). To prevent loss of water from the tree, use peat moss or grass clippings.
Evergreens thrive well if they are trimmed late in the spring. This is needed so that the inner branches develop well. This will also make the tree or the shrub more solid. Regular trimming should be done in formal tress. There should be no tattered branches coming out of the tree. Shape the tress if they are deformed.
Winter sun and excess of wind can also affect the evergreen tress. They suffer from winter burn due to this. The tress dry up and the branches crack up due to the wind’s force or the weight of the snow.
Always remember to water them before the winter months. Deep watering is required before the snow sets in. to protect the evergreen tress from the chilly winter, use straw mats or screens of burlap. Shield the plant only from the sun facing side when the wind and winter both are not that much. Covers or Burlap boxes required proper ventilation. To prevent the branches from cracking, you can tie piece of cloth on tall and thin evergreen tress or shrubs. Use boards for propping the old tress which has huge limbs. This will prevent its breakage under the weight of the ice or snow.