The trees often reach their peak bloom between March and April, and sometimes extend until May.The significance of the blossoming cherry trees in Japan has evolved over time.Emiko Ohnuki-Tierney, a Japanese-American anthropologist, told PBS that the cherry blossom, or sakura, has been a symbol of the cycle of life, death, and rebirth, on the one hand, and of productive and reproductive powers, on the other throughout Japan's history.The tradition of viewing the cherry blossoms is known as hanami in Japanese, as the National Park Service stated on its website about the Washington, DC, Cherry Blossom Festival.Today, cherry trees planted all over the world come to life in the spring. Part of the Japanese tradition of hanami — viewing the cherry trees — can involve having a picnic under the blossoming plants.But simply walking around and under the pink plants is an activity many have taken part in so far this spring.Bonn's Altstadt, or Old Town, has famous blossom-lined streets.According to the German media company Deutsche Welle, in the 1980s, the city of Bonn planned to plant hawthorn trees but improvised and opted for cherry trees, instead. Some 200 Japanese Sakura trees were given to the city of Vilnius, Lithuania, and planted in Chiune Sugihara Sakura Park as a gift from the Japanese government in 2001. The trees commemorate the Japanese diplomat Chiune Sugihara, who helped thousands of Jews from Lithuania, Poland, and Germany, escape the Holocaust by issuing them visas to Japanese territories during World War II.Cherry blossom trees in Kyoto, Japan, reached their peak on March 26. Tokyo also had an earlier-than-usual peak time for cherry trees on March 22.It was the earliest peak date since the Japan Meteorological Agency first started collecting data in 1953, according to the Associated Press.Experts said that the early bloom date was a result of the climate crisis. According to the National Park Service, the city's Yoshino Cherry blossoms reached their peak — when 70% of the flowers opened up — on March 28.Photos from late March and early April show people gathered at the Tidal Basin in the capital city to see the trees in bloom.The Tidal Basin is home to thousands of Yoshino Cherry trees that were planted as a gift from citizens of Japan in 1912 as a symbol of diplomacy.The project was put into place by then-first lady Helen Taft, who took inspiration from the colorful trees she saw in Tokyo and proposed the idea for a cherry blossom-lined walkway in DC.The first Japanese Yoshino Cherry tree was planted in Toronto's High Park in 1959 as a present from the citizens of Tokyo. Other cherry trees have been planted in the Toronto park and other spots in the city since then.There are several types of cherry trees, and their blossoms give off different colors, ranging from bright pink to a fainter white hue.Some people were photographed taking strolls and riding bikes underneath blooming cherry trees.In 2020, cherry blossoms bloomed in empty parks and gardens normally filled with people gathering to take pictures and admire the plants.Each year's cherry blossom season, also known as sakura season, can be enjoyed as a sign of hope, even in times of loss around the world.