A wish tree is an individual tree, usually distinguished by species, position or appearance, which is used as an object of wishes and offerings. Such trees are identified as possessing a special religious or spiritual value. By tradition, believers make votive offerings in order to gain from that nature spirit, saint or goddess fulfillment of a wish.
One form of votive offering is the token offering of a coin. The remains of one such tree can be found  near Ardmaddy House in Argyll, Scotland, a hawthorn, which is a species traditionally linked with fertility. The trunk and branches are covered with hundreds of coins which have been driven through the bark and into the wood. The local tradition is that a wish will be granted for each of the coins so treated.
- In the glen of the Aira Beck near Aira Force is a wish tree formed from a large fallen tree trunk into which the many visitors hammer coins using stones from nearby.
- On Isle Maree in Loch Maree, Gairloch, in the Highlands is an oak wish tree made famous by a visit in 1877 by Queen Victoria mentioned in her published diaries. The tree, and others surrounding it, are festooned with hammered-in coins. It is near the healing well of St. Maree, to which votive offerings were made, including the sacrifice of bulls, which continued up to the 18th century, according to records.
- Near Mountrath, County Laois, is a shapeless old wish tree in the form of a sycamore tree called St. Fintan's Well. The original well was filled in, but the water re-appeared in the centre of the tree. Hundreds of Irish pennies have been beaten into the bark as good luck offerings.
- The High Force Waterfall has a coin wish tree in the grounds of the waterfall.
- Many public houses, such as the Punch Bowl in Askham, near Penrith in Cumbria, have old beams with splits in them into which coins are forced for luck.
The practice of tying pieces of cloth to a wish tree is often directly associated with nearby clootie wells, as they are known in Scotland and Ireland, or "cloutie" or "cloughtie" in Cornwall. Culloden has an example of a clootie well in the nearby woods.
- Madron Well (SW446 328) is a cloutie well in Cornwall with the same practice of tying cloth; as the cloth rots, the ailment is believed to disappear. Sancreed (SW446 328) and Alisia Wells (SW393 251) are other Cornish cloughtie wells where this ritual is carried out.
There are parallels here with wassailing where the Wassail Queen is lifted up into the boughs of the apple tree, where she places toast that has been soaked in Wassail from the Clayen Cup as a gift to the tree spirits to ensure good luck for the coming season's crop and to show them the fruits of what they created the previous year.
In a related cultural tradition found in many locations, including the United States, supplicant will toss or hurl shoes into trees that are locally designated as wellsprings of good fortune. See Shoe tossing.
- The Lam Tsuen Wishing Trees are located in Hong Kong near the Tin Hau Temple in Lam Tsu. Two banyan trees are frequented by tourists and the locals during the Lunar New Year. Previously, they burnt joss sticks, wrote their wishes on joss paper tied to an orange, and then threw them up to hang in these trees, believing that if the paper successfully hung onto one of the tree branches, their wishes would come true.
- In Glasgow's Hidden Garden at Pollockshields and at the Kagyu Samye Ling Monastery in Scotland, a number of trees have been planted onto which people can tie white labels, on which they have written their wishes.
- Eglinton Castle estate, now Eglinton Country Park, has had a wish tree for many years, a yew on an island in the Lugton Water, now left high and dry due to the weir giving way.
- The Christmas tree is often quoted as being a pagan symbol connected with tree worship, clearly linked with good luck achieved through offerings (decoration) to and veneration of special trees.
- A number of wish trees have been set up to make a wish for the environment, such as at the Loch Lomond and the Trossachs National Park Centre at Balloch in Scotland. People make their wish for and pledge to help the environment and tie the wish label to the tree.
- The sacred well of Saint Tanew – or St Enoch – in Glasgow was much visited for cures and the old tree beside it was covered in small bits of tin-iron nailed to it by pilgrims. The offerings were shaped as eyes, feet, hands, ears, etc. depending on the cure hoped for. The saint was mother to Saint Mungo.
Other cultural traditions
- In Hindu mythology, the banyan tree is also called kalpavriksha, meaning "wish- fulfilling tree", as it represents eternal life because of its seemingly ever-expanding branches.
- Ashen tree, ashen tree, / Pray buy these warts of me was a rhyme one had to sing whilst sticking a pin first into one's warts and then into the tree.
- The Wishing Tree or Kissing Tree was made at Christmas or Yuletide before pine trees were introduced by Prince Albert in 1840. An evergreen bough was hung with apples, sweetmeats, and candles and decked with ribbons representing wishes.
- At the summit of the Fereneze Braes in Neilston, Renfrewshire, Scotland, there was an old hawthorn, well known locally as "The Kissing Tree". The story goes that if a young man could drive a nail fully into the thorn tree with a single blow, then he would be entitled to "ae fond kiss" on the spot from his sweetheart. Success in the task was considered proof of his suitability as a good suitor for the young lady. The original tree fell in around 1860, but in 1910, a replacement was said to exist. Driving a nail into the tree may link the custom with that of driving coins into trees as noted above.
- In parts of Yorkshire, a tree with two spreading branches which also formed a bower over the point of branching, was known as a Wish Tree by children who would climb onto the junction and make a wish.
- Charles Darwin encountered a tree in Argentina called Walleechu, which was regarded by the local inhabitants as a god. The tree was festooned with offerings such as cigars, food, water, cloth, etc., hung from the branches by bright strips of coloured thread.
Since the 1990s the Wish Tree has played a significant part in many of Yoko Ono's exhibitions. Ono's Wish Tree, installed in the Sculpture Garden of the Museum of Modern Art, New York in July 2010, has become very popular, with contributions from all over the world. Her Wish Tree for Washington, DC is in the Hirshhorn Museum and Sculpture Garden.
- Rodger, Donald, Stokes, John & Ogilve, James (2006). Heritage Trees of Scotland. The Tree Council. P.87. ISBN 0-904853-03-9.
- Sharp, Mick (1997). Holy Places of Celtic Britain. Blandford. ISBN 1-85079-315-8. P. 149.
- Wilkinson, Gerald (1976). Trees in the Wild. Book Club Associates. P. 108.
- Straffon, Cherly (1998). Fentynyow Kernow. In Search of Cornwall's Holy Wells. Pub. Meyn Mamvro. ISBN 0-9518859-5-2, pp. 40-42.
- Rundall, *Rundall, Charlotte (Editor) (1998). The Magic of Cornwall. Reader's Digest.
- Glasgow's Hidden Gardens.
- MacGeorge, Andrew (1880). Old Glasgow. The Place and the People. Glasgow: Blackie and Son. Page 145.
- Wilkinson, Gerald (1976). Trees in the Wild. Book Club Associates. P.26.
- Pride, David (1910), A History of the Parish of Neilston. Pub. Alexander Gardner, Paisley. P. 213.
- Woodward, Charles & Patricia (2006). Oral communication to Mr. Roger S.Ll. Griffith.
- "The Voyage of the Beagle", Chapter IV
- Thompson, Harry (2006). This thing of darkness. Pub. Headline Review. ISBN 0-7553-0281-8. P. 358.
- Wishing in Yoko Ono's Art.
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