Blossoming flowers and trees are seen in Ammiq in Lebanon's Bekaa valley, February 24, 2021. Picture taken February 24, 2021. REUTERS/Aziz Taher

Tree blossom is seen in Great Linford, Milton Keynes, Britain February 26, 2021. REUTERS/Andrew Boyers

Tree blossom is seen in Great Linford, Milton Keynes, Britain February 26, 2021. REUTERS/Andrew Boyers

Tree blossom is seen in Great Linford, Milton Keynes, Britain February 26, 2021. REUTERS/Andrew Boyers

A woman waits for customers to sell peach blossom flowers will be used as a decoration at home during the traditional Vietnamese Lunar New Year celebrations, the festival of the year in Hanoi, Vietnam February 4, 2021. REUTERS/Kham

Cherry blossoms are seen frozen after a snowfall in Lao Cai province, Vietnam, January 11, 2021. REUTERS/Thanh Hue

A red-tailed black bumblebee collects nectar from lavender blossoms at Hitchin Lavender farm in Ickleford, Britain, August 4, 2020. REUTERS/Peter Cziborra

A field of flowers is seen during the annual blossom in Castelluccio, Italy, July 6, 2020. Picture taken July 6, 2020. REUTERS/Guglielmo Mangiapane TPX IMAGES OF THE DAY

A view of fields of flowers is seen during the annual blossom in Castelluccio, Italy, July 6, 2020. Picture taken July 6, 2020. REUTERS/Guglielmo Mangiapane

A view of fields of flowers is seen during the annual blossom in Castelluccio, Italy, July 6, 2020. Picture taken July 6, 2020. REUTERS/Guglielmo Mangiapane

People walk in the middle of a field of flowers during the annual blossom in Castelluccio, Italy, July 6, 2020. Picture taken July 6, 2020. REUTERS/Guglielmo Mangiapane

People walk in the middle of a field of flowers during the annual blossom in Castelluccio, Italy, July 6, 2020. Picture taken July 6, 2020. REUTERS/Guglielmo Mangiapane

A view of fields of flowers is seen during the annual blossom in Castelluccio, Italy, July 6, 2020. Picture taken July 6, 2020. REUTERS/Guglielmo Mangiapane

A view of fields of flowers is seen during the annual blossom in Castelluccio, Italy, July 6, 2020. Picture taken July 6, 2020. REUTERS/Guglielmo Mangiapane

A view of fields of flowers is seen during the annual blossom in Castelluccio, Italy, July 6, 2020. Picture taken July 6, 2020. REUTERS/Guglielmo Mangiapane

A woman takes a picture of a field of flowers during the annual blossom in Castelluccio, Italy, July 6, 2020. Picture taken July 6, 2020. REUTERS/Guglielmo Mangiapane

People walk in the middle of a field of flowers during the annual blossom in Castelluccio, Italy, July 6, 2020. Picture taken July 6, 2020. REUTERS/Guglielmo Mangiapane

The blossom of a 32,000-year-old plant (Silene stenophylla) is seen inside a glass in a laboratory at the University of Natural Resources and Life Sciences of Vienna (BOKU) in Vienna, Austria, June 30, 2020. REUTERS/Lisi Niesner

The blossom of a 32,000-year-old plant (Silene stenophylla) is seen inside a glass in a laboratory at the University of Natural Resources and Life Sciences of Vienna (BOKU) in Vienna, Austria, June 30, 2020. REUTERS/Lisi Niesner

A bee prepares to land on lavender blossoms in a garden, as the coronavirus outbreak continues, in Vienna, Austria June 26, 2020. REUTERS/Lisi Niesner

Bees fly beyond lavender blossoms in a garden, as the coronavirus outbreak continues, in Vienna, Austria June 26, 2020. REUTERS/Lisi Niesner

A bee sits on lavender blossoms in a garden, as the coronavirus outbreak continues, in Vienna, Austria June 26, 2020. REUTERS/Lisi Niesner

A bee pollinates a blossomed almond branch in a field where farmers use techniques aimed at bringing new life to the land, in Hernan Valle, near Granada, Spain, March 10, 2020. Picture taken March 10, 2020. REUTERS/Jon Nazca

A blossomed almond branch is seen in a field where farmers use techniques aimed at bringing new life to the land in Hernan Valle, near Granada, Spain, March 10, 2020. Picture taken March 10, 2020. REUTERS/Jon Nazca

People wearing protective face masks walk past blossoming lilac trees as they visit a botanical garden following the easing of lockdown measures, which were imposed to curb the spread of the coronavirus disease (COVID-19), in Kiev, Ukraine May 18, 2020. REUTERS/Valentyn Ogirenko

Women take pictures in front of blossoming lilac trees as they visit a botanical garden following the easing of lockdown measures, which were imposed to curb the spread of the coronavirus disease (COVID-19), in Kiev, Ukraine May 18, 2020. REUTERS/Valentyn Ogirenko

(L-R) Angela Sauretti and Tatiana Llazmin, both from Queens, take a selfie under a blossoming tree in Flushing Meadows-Corona Park during the outbreak of the coronavirus disease (COVID-19) in the Queens borough of New York City, U.S., April 25, 2020. REUTERS/Andrew Kelly

A tree is seen in blossom at the Lurkoi organic farm, during the coronavirus disease (COVID-19) outbreak, Busturia, Spain, April 21, 2020. Picture taken April 20, 2020. REUTERS/Vincent West

Blossomed vegetation are seen in a public park, during a countrywide lockdown to combat the spread of the coronavirus disease (COVID-19) outbreak, in Khiam, Lebanon April 22, 2020. REUTERS/Aziz Taher

A child climbs on a Royal Poinciana tree to pluck newly bloomed blossoms in Dhaka, Bangladesh, April 22, 2020. REUTERS/Mohammad Ponir Hossain TPX IMAGES OF THE DAY

Children hold Royal Poinciana blossoms after plucking them from a tree in Dhaka, Bangladesh, April 22, 2020. REUTERS/Mohammad Ponir Hossain

A woman poses for a picture under cherry blossoms in the park during the coronavirus disease (COVID-19) outbreak, in Riga, Latvia April 21, 2020. REUTERS/Ints Kalnins

A man with a child pose for a picture under cherry blossoms in the park during the coronavirus disease (COVID-19) outbreak, in Riga, Latvia April 21, 2020. REUTERS/Ints Kalnins

People pose for a picture under cherry blossoms in the park during the coronavirus disease (COVID-19) outbreak, in Riga, Latvia April 21, 2020. REUTERS/Ints Kalnins

A woman poses for a picture under cherry blossoms in the park during the coronavirus disease (COVID-19) outbreak, in Riga, Latvia April 21, 2020. REUTERS/Ints Kalnins

A woman is seen under cherry blossoms in the park during the coronavirus disease (COVID-19) outbreak, in Riga, Latvia April 21, 2020. REUTERS/Ints Kalnins

A woman walks by Cherry Blossom as she walks dogs while the spread of the coronavirus disease (COVID-19) continues, Milton Keynes, Britain, April 20, 2020. REUTERS/Andrew Boyers

People are seen beneath blossoming trees in Central Park during the outbreak of the coronavirus disease (COVID-19) in Manhattan, New York City, New York, U.S., April 19, 2020. REUTERS/Andrew Kelly

A man walks beneath blossoming trees in Central Park during the outbreak of the coronavirus disease (COVID-19) in Manhattan, New York City, New York, U.S., April 19, 2020. REUTERS/Andrew Kelly

A Red Panda is pictured eating cherry blossom at Manor Wildlife Park in St Florence. The Park is crowdfunding for food to feed their endangered animals as the spread of coronavirus disease (COVID-19) continues, in St Florence, Wales, Britain, April 15, 2020. REUTERS/Rebecca Naden

A Red Panda is pictured eating cherry blossom at Manor Wildlife Park in St Florence. The Park is crowdfunding for food to feed their endangered animals as the spread of coronavirus disease (COVID-19) continues, in St Florence, Wales, Britain, April 15, 2020. REUTERS/Rebecca Naden

A Red Panda is pictured in cherry blossom at Manor Wildlife Park in St Florence. The Park is crowdfunding for food to feed their endangered animals as the spread of coronavirus disease (COVID-19) continues, in St Florence, Wales, Britain, April 15, 2020. REUTERS/Rebecca Naden

A Red Panda is pictured in cherry blossom at Manor Wildlife Park in St Florence. The Park is crowdfunding for food to feed their endangered animals as the spread of coronavirus disease (COVID-19) continues, in St Florence, Wales, Britain, April 15, 2020. REUTERS/Rebecca Naden

People wearing protective face masks stand under blooming cherry blossoms in a park on Easter Sunday, during the coronavirus disease (COVID-19) outbreak, in the Treptow district in Berlin, Germany April 12, 2020. REUTERS/Michele Tantussi TPX IMAGES OF THE DAY

People walk under blooming cherry blossoms in a park in the Berlin district of Treptow on Easter Sunday during the coronavirus disease (COVID-19) outbreak, Germany April 12, 2020. REUTERS/Michele Tantussi

A woman takes photos under blooming cherry blossoms in a park in the Berlin district of Treptow on Easter Sunday during the coronavirus disease (COVID-19) outbreak, Germany April 12, 2020. REUTERS/Michele Tantussi

People walk under blooming cherry blossoms in a park in the Berlin district of Treptow on Easter Sunday during the coronavirus disease (COVID-19) outbreak, Germany April 12, 2020. REUTERS/Michele Tantussi

People walk under blooming cherry blossoms in a park in the Berlin district of Treptow on Easter Sunday during the coronavirus disease (COVID-19) outbreak, Germany April 12, 2020. REUTERS/Michele Tantussi

A woman takes photos under blooming cherry blossoms in a park in the Berlin district of Treptow on Easter Sunday during the coronavirus disease (COVID-19) outbreak, Germany April 12, 2020. REUTERS/Michele Tantussi

People take photos near blooming cherry blossoms in a park in the Berlin district of Treptow on Easter Sunday during the coronavirus disease (COVID-19) outbreak, Germany April 12, 2020. REUTERS/Michele Tantussi

Blossom is seen at a cemetery in London as the spread of the coronavirus disease (COVID-19) continues, London, Britain, April 11, 2020. REUTERS/Toby Melville

Blossom is seen at a cemetery in London as the spread of the coronavirus disease (COVID-19) continues, London, Britain, April 11, 2020. REUTERS/Toby Melville

Blossom is seen at a cemetery in London as the spread of the coronavirus disease (COVID-19) continues, London, Britain, April 11, 2020. REUTERS/Toby Melville

A woman passes cherry blossoms in a street in London, Britain, April 10, 2020. REUTERS/Kevin Coombs

A combination picture shows Heerstrasse, known as the Cherry Blossom Area, a magnet for tourists from all over the world during blossom-time of the cherry trees, crowded with people despite of the lock down, April 5, 2020, and the same spot after the Public Order Office Ordnungsamt closed the access to the district, April 8, 2020, as the spread of the coronavirus disease (COVID-19) continues, in Bonn, Germany. REUTERS/Wolfgang Rattay/Thilo Schmuelgen

The empty Heerstrasse is seen after the Public Order Office Ordnungsamt closed the access to the district, known as the Cherry Blossom Area, a magnet for tourists from all over the world during blossom-time of the cherry trees, as the spread of the coronavirus disease (COVID-19) continues in Bonn, Germany, April 8, 2020. REUTERS/Thilo Schmuelgen

The empty Heerstrasse is seen after the Public Order Office Ordnungsamt closed the access to the district, known as the Cherry Blossom Area, a magnet for tourists from all over the world during blossom-time of the cherry trees, as the spread of the coronavirus disease (COVID-19) continues in Bonn, Germany, April 8, 2020. REUTERS/Thilo Schmuelgen

A woman wearing a mask to prevent contracting the coronavirus disease (COVID-19) waits for a bus under cherry blossom trees at a stop in Seoul, South Korea, April 8, 2020. REUTERS/Kim Hong-Ji

A dog sits on a balcony after the Public order office Ordnungsamt closed the access to the district, known as the Cherry Blossom Area, a magnet for tourists from all over the world during blossom-time of the cherry trees, as the spread of the coronavirus disease (COVID-19) continues in Bonn, Germany, April 8, 2020. REUTERS/Thilo Schmuelgen