Arbor Day
Trees are the main focus of Arbor Day.
Observed by	United States and other countries.
Type	Cultural
Significance	A holiday celebrating trees.
Celebrations	Planting and caring for trees, educating about the importance of trees.
Date	Final Friday in April (US), various other days (other countries).
Related to	Greenery Day (Japan)

Arbor Day is a holiday in which individuals and groups are encouraged to plant and care for trees. Arbor Day originated in Nebraska City, Nebraska, United States and is celebrated in a number of countries. It is also known as Earth Day.

The national tree planting day (Jour de l'arbre) of Algeria is on October 25.

July 28 is National Tree Planting Day for schools throughout Australia and 30 July is National Tree Planting Day for the rest of the Nation. Many states have Arbor Day although only Victoria has Arbor Week,which was suggested by the late Premier Dick Hamer in the 80s. Arbor Day has been observed in Australia since 20 June 1889.

International Day of Treeplanting is celebrated in Flanders on or around 21 March as a theme-day/educational-day/observance, not as public holidays. Tree planting is sometimes combined with awareness campaigns of the fight against cancer: Kom Op Tegen Kanker.

Republic of China (Taiwan): Arbor Day (植樹節) has been a traditional holiday in the Republic of China since 1927. In 1914, the founder of the agricultural college at Nanking University suggested to the now-defunct Ministry of Agriculture and Forestry that China should imitate the practice in the United States of Arbor Day. The holiday would be held the same day as the Qingming Festival. However, for unknown reasons, the suggestion was not made through the formal process, so nothing came from this original request. After the successful conclusion of the Northern Expedition, the now-defunct Ministry of Agriculture and Minerals formally petitioned the Executive Yuan to establish Arbor Day to commemorate the passing of Dr. Sun Yat-sen, the Father of Modern China. He had been a major advocate of afforestation in his life, because it would increase people's livelihoods. The Executive Yuan approved Arbor Day in the spirit of Dr. Sun that year and has since been celebrated on March 12 for this purpose.

People's Republic of China (Mainland China): In 1981, the fourth session of the Fifth National People's Congress of the People's Republic of China adopted the "Resolution on the unfolding of a nationwide voluntary tree-planting campaign". This resolution established Arbor Day (植树日) and stipulated that every able-bodied citizen between the ages of 11 and 60 should plant three to five trees per year or do the equivalent amount of work in seedling, cultivation, tree tending or other services. Supporting documentation instructs all units to report population statistics to the local afforestation committees as the basis for workload allocation. Moreover, those failing to do their duty are expected to make up planting requirements, provide funds equivalent to the value of labor required or pay heavy fines. Therefore, the tree-planting campaign is actually compulsory, or at least obligatory (that is, an obligation to the community). The "voluntary" in the title referred to the fact that the tree-planters would "volunteer" their labor. The People's Republic of China also celebrates Arbor Day on March 12.

National Tree Planting Day is on June 1.

National Tree Planting Day is on July 22.

Tree planting day, arbor day, is on January 15.

Arbor Day is on April 25. First celebration was in 1952.

National Tree Planting Day is on March 5.

Israel celebrates Tu Bishvat, the new year for trees, on the fifteenth day of the month of Shevat, which usually falls in January or February. Originally based on the date used to calculate the age of fruit trees for tithing as mandated in Leviticus 19:23-25, the holiday now is most often observed by planting trees, or raising money to plant trees.^[1] About Tu Bishvat, there is no source for Tu Bishvat in the Torah. It was actually founded by the Hebrew Sages. .^[2]one week

Japan celebrates a similarly themed Greenery Day, held on April 29th. Although it has a similar theme to Arbor Day, its roots lay in celebration of the birthday of Emperor Hirohito.

National Tree Planting Day is on April 21. Often people plant palm trees and coconut trees along the Pacific Coast that borders the East coast of Kenya.

National Tree Planting Day is on March 21.

Macedonia celebrated Tree Day on March 12, 2008. It was declared an official non-working day, and over 2 million trees were planted. The holiday was declared in honor of reforestation following the devastating Macedonian wildfires of Summer 2007.

National Tree Planting Day is on the 2nd Monday of December.

National Tree Day is on the 2nd Thursday of July.

Its first Arbor Day was celebrated on 2004-10-08.^[3]

Since conference and of the Food and Agriculture Organization's publication World Festival of Trees, and a resolution of the United Nations in 1954: "The Conference, recognising the need of arousing mass consciousness of the aesthetic, physical and economic value of trees, recommends a World Festival of Trees to be celebrated annually in each member country on a date suited to local conditions"; it has been adopted by the Netherlands. In 1957 the National Committee Day of Planting Trees/Foundation of National Festival of Trees (Nationale Boomplantdag/Nationale Boomfeestdag) was created.

On or around 21 March (the first day of Spring) or sometimes on or around 21 September (the first day of Autumn), threequarters of city school-children and others plant trees.^{[citation needed]}

In 2007 the 50th anniversary will be celebrated with special golden jubilee-activities.

New Zealand's first Arbor Day planting was in Greytown in the Wairarapa on 3 July 1890. The first official celebration took place in Wellington in August 1892, with the planting of pohutukawa and Norfolk pines along Thorndon Esplanade.

Born in 1855, Dr Leonard Cockayne (generally recognised as the greatest botanist who has lived, worked, and died in New Zealand) worked extensively on native plants throughout New Zealand and wrote many notable botanical texts. Even as early as the 1920s he held a vision for school students of New Zealand to be involved in planting native trees and plants in their school grounds. This vision bore fruit and schools in New Zealand have long planted native trees on Arbor Day.

Since 1977 New Zealand has celebrated Arbor Day on June 5, which is also World Environment Day, prior to then Arbor Day, in New Zealand, was celebrated on August 4 - which is rather late in the year for tree planting in New Zealand hence the date change.

What the Department of Conservation (DOC) does for Arbor Day: Many of DOC’s Arbor Day activities focus on ecological restoration projects using native plants to restore habitats that have been damaged or destroyed by humans or invasive pests and weeds. There are great restoration projects underway around New Zealand and many organisations including community groups, landowners, conservation organisations, iwi, volunteers, schools, local businesses, nurseries and councils are involved in them. These projects are part of a vision to protect and restore the indigenous biodiversity

Since 1975, Niger has celebrated Arbor Day as part of its Indepedence Day: 3 August. On this day, aiding the fight against desertification, each Nigerien plants a tree.

Arbor Day in the Philippines has been institutionalized to be observed every June 25 throughout the nation by planting trees and ornamental plants and other forms of relevant activities. The necessity to promote a healthier ecosystem for the people through the rehabilitation and regreening of the environment was stressed in Proclamation No. 643 that amended Proclamation No. 396 of June 2, 2003. Proclamation No. 396 enjoined the "active participation of all government agencies, including government-owned and controlled corporations, private sector, schools, civil society groups and the citizenry in tree planting activity and declaring June 25, 2003 as Philippines Arbor Day."

Arbor Day is celebrated on March 21. It's not a national holiday but instead schools nationwide celebrate this day with environment-related activities, namely tree planting.

Arbor Day was celebrated from 1983 until 1999 in South Africa, when the national government extended it to National Arbor Week, which lasts from 1-7 September. Two trees, one common and one rare, are highlighted to increase public awareness of indigenous trees, while various "greening" activities are undertaken by schools, businesses and other organizations.

Arbor Day (Sikmogil, 식목일) was a public holiday in South Korea on April 5 until 2005. The day is still celebrated, though. On non-leap years, the day coincides with Hansik.

National Tree Planting Day is on October 15.

National Tree Planting Day is on January 1.

National Tree Planting Day is on March 24.

The national holiday is celebrated every year on the last Friday in April; it is a civic holiday in Nebraska and was founded by Julius Sterling Morton. Each state celebrates its own state holiday. The customary observance is to plant a tree. On the first Arbor Day, an estimated one million trees were planted.^[4]

Venezuela recognizes "Día del Arbol" on the last Sunday of May.

• Earth Day
• National Arbor Day Foundation
• Oak Apple Day
• Tu Bishvat
• Timeline of environmental events

• It's Arbor Day, Charlie Brown, an animated special featuring the Peanuts characters, was produced in 1976.^[5]
• "April 25 - When You Plant a Tree (Arbor Song)" is a solo piano piece in honor of Arbor Day, composed by jazz pianist Mark Massey.

• International Arbor Days
• History of Arbor Day
• National Arbor Day Foundation
• State Arbor Days and state trees
• Arbor Day Leaves - A Complete Programme For Arbor Day Observance, Including Readings, Recitations, Music, and General Information at Project Gutenberg