This picture taken on March 21, 2015 shows a couple kissing in front of blooming cherry blossoms in Wuhan in central China's Hubei province. The cherry blossoms, now in full bloom, attracted tens of thousands of visitors, local media reported. (Photo by AFP Photo/Stringer)

People visit a park with blooming flowers during spring in Shanghai March 24, 2015. (Photo by Aly Song/Reuters)

A man wearing flowers on his head is seen at a park in Shanghai March 24, 2015. (Photo by Aly Song/Reuters)

A young woman (C) takes a “selfie” in front of blossoming trees during the first day of the nearly one month-long Cherry Blossom Festival in Gucun Park in northern Shanghai on March 18, 2015. (Photo by Johannes Eisele/AFP Photo)

A young woman (C) takes a “selfie” in front of blossoming trees during the first day of the nearly one month-long Cherry Blossom Festival in Gucun Park in northern Shanghai on March 18, 2015. (Photo by Johannes Eisele/AFP Photo)

A man uses a smartphone to take a picture of plum blossoms which began blooming at a public park in Beijing Sunday, March 22, 2015. (Photo by Andy Wong/AP Photo)

This picture taken on March 21, 2015 shows a couple posing in front of blooming cherry blossoms in Wuhan in central China's Hubei province. (Photo by AFP Photo/Stringer)

In this Wednesday, March 4, 2015, file photo, a visitor takes a picture of plum blossoms in bloom at Yushima Shinto shrine during the annual plum festival in Tokyo. (Photo by Shuji Kajiyama/AP Photo)

A mother (R) takes a snapshot of her daughter in front of a tree during the first day of the nearly one month-long Cherry Blossom Festival in Gucun Park in northern Shanghai on March 18, 2015. (Photo by Johannes Eisele/AFP Photo)

A young woman takes a “selfie” in a tree during the first day of the nearly one month-long Cherry Blossom Festival in Gucun Park in northern Shanghai on March 18, 2015. (Photo by Johannes Eisele/AFP Photo)

A girl blows soap bubbles near blooming plum blossoms at a public park in Beijing Sunday, March 22, 2015. (Photo by Andy Wong/AP Photo)

This picture taken on March 21, 2015 shows visitors walking amongst the cherry blossoms in Wuhan in central China's Hubei province. The cherry blossoms, now in full bloom, attracted tens of thousands of visitors, local media reported. (Photo by AFP Photo/Stringer)