Forests have always had deep-rooted symbolic meaning in virtually every culture on earth. Forests are the abode of the nature spirits. Forests are a refuge from danger as well as a source of dangerous wild animals. Forests are mysterious and constantly changing. 
Tree symbols and forests contains multiple mythic qualities. The deep-rooted symbolism of trees is apparent in common metaphors such as the Tree of Life and our ancestral heritage depicted in family trees.
In Vedic philosophy, the symbolism of wood claims this element as the primal material of the universe. Christian art symbolism depicts Christ as the cosmic carpenter and His ultimate sacrifice is represented by the symbolism of a wooden cross. The Jewish depiction of the Kabbalah is in the form of a modified tree and explains the mystical teachings of Judaism.
Apple Tree Symbolism
Apple trees symbolize magic, youth, beauty and happiness. The apple has long been associated with the symbolism of immortality. The mystical Isle of Avalon, famed place of eternal rest for Celtic heroes including King Arthur, is literally "the apple land" or "apple island." In Scandinavia, the North-European gods and goddesses were fed an apple every evening by Iduna, the goddess of spring who nurtures an apple orchard in Asgard.
Ash Tree Symbolism
Ash trees symbolize sacrifice, sensitivity and higher awareness. The wood is white, strong, and straight-grained. Ash is the timber of choice for production of baseball bats and tool handles. The wood is also favorable for furniture and flooring. Ash is a large deciduous tree with smooth, gray bark on young trees which becomes fissured with age. The leaves are green above, white below, and turn yellow, red, or purple in the fall.
Aspen Tree Symbolism
Aspen tree symbolism includes determination and overcoming fears and doubts. Renowned for their golden autumn foliage, aspen trees are the only broadleaf tree in the Rocky Mountains. Individual aspen trees live only 100 years. However, aspen trees reproduce by sprouting shoots from their roots. This allows them to grow in a cohesive grove. Thus, a grove is actually a single living organism which can reach several thousand years in age. Even fire damage will not kill a grove of aspen trees if the roots remain alive. Read full article and see video on aspen trees and their symbolism.
Beech Tree Symbolism
Beech tree symbolism includes tolerance, past knowledge and softening criticism. The beech family comprises about 900 species of both evergreen and deciduous trees and shrubs. Beech trees have alternate simple leaves with pinnate venation. Beech trees produce edible nuts and are commonly used as timber for floors, furniture, cabinets, and barrels.
Birch Tree Symbolism
Birch tree meanings include new beginnings and cleansing of the past. Birch trees are also associated with vision quests. The common name birch is derived from an old Germanic root meaning "white, bright or to shine." The birch is considered the national tree of Russia, where it used to be worshipped as a goddess during the Green Week in early June.
Cedar Tee Symbolism
Cedar trees meanings include healing, cleansing and protection. It is widely grown as an ornamental tree, planted in parks and large gardens for its drooping foliage. It is the national tree of Pakistan. The name "deodar" is derived from modern Indian language derivatives of the Sanskrit name 'devdar', meaning "timber of the gods".
Cherry Tree Symbolism
Cherry tree symbols mean death and rebirth and new awakenings. Because of their considerable value as both food and ornamental plants, many cherry and other fruit tree species have been introduced to parts of the world to which they are not native. Many of the Old World species are grown for ornament or fruit, and have been planted throughout the world. Some have become naturalized beyond their native range.
Copaiba Tree Symbolism
The copaiba balsam tree is symbolic of vitality and lives in the wooded savanna of Africa. The copaiba grows by runners, allowing it to create groves or forests of trees similar to aspen groves. The copaiba tree has an inverted cone shape that is flat on the top and is considered to be one of the most trees in savanna regions. Copaiba trees can reach a height of twenty meters. The copaiba tree is tapped like a maple tree and the sap can be distilled as an essential oil reputed to assist in common digestive discomforts and in the support of a strong immune system.
Cypress Tree Symbolism
Cypress tree symbolism includes understanding the role of sacrifice and is associated with the god of the underworld, Hades. Many species are grown as decorative trees in parks and in temples. A few species are grown for their timber, which can be very durable.
Elder Tree Symbolism
Elder tree symbols mean birth, death, and the fairy realm. The berries are a very valuable food resource for many birds. Both flowers and berries can be made into elderberry wine and an elderberry brandy is produced in Hungary. The flowers may be used to make an herbal tea, which is believed as a remedy for colds and fever. In Europe, the flowers are made into a cough syrup, which is diluted with water before drinking.
Elm Tree Symbolism
Elm tree meaning includes strength of will and intuition. During the 18th and 19th centuries, elms were popular as ornamentals by virtue of their rapid growth and variety of foliage and forms. This popularity lasted until World War I when the consequences of hostilities, notably in Germany, and the outbreak of Dutch elm disease saw the elm slide into horticultural decline. Elm wood is valued for its interlocking grain, and consequent resistance to splitting, with significant uses in wheels, chairs and coffins. The wood is also resistant to decay when permanently wet, and hollowed trunks were widely used as water pipes during the medieval period in Europe.
Eucalyptus Tree Symbolism
The eucalyptus tree is symbolic of prudence. The name is derived from the Greek word "eucalyptos," which means "well covered." This name referes to the protective membrane that covers the budding flowers of the tree. The eucalyptus tree is also symbolic of Australia, where it is an important native tree. Eucalyptus has been used medicinally to treat the common cold, headaches due to colds, bronchial disease, throat inflammations, rheumatism, coughs, asthma and flu. (Photo courtesy of Ethel Aardvark, Wikimedia Commons)
Fir Tree
The fir tree has long been a symbol of springtime and immortality. More recently, fir trees are one of the primary trees used for Christmas trees, with the modern practice of Christmas trees beginning around 1500 in Germany. The tradition of bringing green branches into one's home to celebrate faith in eternal life was part of winter rituals as far back as the Egyptians. Today the use of a Christmas tree is nearly universal. The oil of fir trees is known for its antiseptic action and ability to kill airborne germs and bacteria as well as support respiratory health. See article on Christmas Tree Symbolism.
Hazel Tree Symbolism
Hazel tree symbolism includes hidden wisdom, dousing and divination. The nuts of all hazels are edible. The Common Hazel is the species most extensively grown for its nuts, followed in importance by the Filbert. Nuts are also harvested from the other species, but apart from the Filbert, none is of significant commercial importance. A number of cultivars of the Common Hazel and Filbert are grown as ornamental plants in gardens.
Holly Tree Symbolism
Holly tree symbols include protection, overcoming of anger and spiritual warrior. In many western cultures, holly is a traditional Christmas decoration, especially in wreaths. The wood is heavy, hard and whitish. One traditional use is for chess pieces, with holly for the white pieces, and ebony for the black. Other uses include turnery, inlay work and as firewood. Looms in the 1800s used holly for the spinning rod. Because holly is dense and can be sanded very smooth, the rod was less likely than other woods to snag threads being used to make cloth.
Maple Tree Symbolism
Maple trees meanings includes balance, promise and practicality. Maples are important as source of syrup and wood. Dried wood is often used for the smoking of food. They are also cultivated as ornamental plants and are beneficial for tourism in the autumn.
Palm Tree Symbolism
Palm tree symbols include peace and opportunity. In many historical cultures, palms were also symbols for such victory and fertility. Today, palms remain a popular symbol for the tropics and vacations. Many common products and foods are derived from palms, and palms are also widely used in landscaping for their exotic appearance making them one of the most economically important plants. Most palms are distinguished by their large, compound, evergreen leaves arranged at the top of an un branched stem.
Pine Tree Symbolism
Pine tree symbolism includes creativity, life, longevity and immortality. Pine trees are recognizable by both their needle-like leaves and cones. Pines are commercially among the most important of species used for timber and wood pulp in temperate and tropical regions of the world. Some species have large seeds, called pine nuts, that are harvested and sold for cooking and baking.
Willow Tree Symbolism
Willow tree meanings includes magic, healing, inner vision and dreams. The leaves and bark of the willow tree have been mentioned in ancient texts from Assyria, Sumer and Egypt as a remedy for aches and fever. Native Americans across the continent relied on it as a staple of their medical treatments. This is because they contain acetylsalicylic acid, also known as aspirin. The willow is a famous subject in many East Asian nations' cultures, and the image has been employed in a variety of Korean poetry. The willow was also part of mourning pieces created in the 19th century (and earlier) by women to commemorate the death of a loved one. These pieces always included one or more mourners in dark dresses bent over a burial vault, tombstone or urn with a willow tree--a symbol of death, tears, mourning, and reflection. Perhaps this is the origin of the term "weeping willow".