
The tree that officially signals the start of sakura season in the capital has missed the predicted starting date, but we have some new dates to keep an eye out for.
Every year in mid-March, discussions around the nation turn to when the Somei Yoshino sakura trees, Japan’s most famous and predominant sakura variety, will bloom. While all the official forecasts give us a general idea for the predicted date when the cherry blossoms will start to unfurl their petals, there’s only one way to know when sakura season has formally arrived, and it involves something called a sample tree, or “hyoujun-ki” in Japanese.
There are currently 58 sample trees around Japan, and in Tokyo, the hyoujun-ki is located on the grounds of Yasukuni Shrine in Tokyo’s Chiyoda Ward. Ever since 1966, this tree has been observed by the Tokyo Regional Headquarters of the Japan Meteorological Agency, and once five or six flowers appear, officials formally declare the start of sakura season. When over 80 percent of the hyoujun-ki is in flower, the agency announces that the city’s sakura trees are in full bloom.
▼ The outer garden at Yasukuni Shrine
The sample tree is located in the inner garden, which is where our reporter Mr Sato went to assess its current state. With 19 March being the start date quoted on this year’s official sakura forecast for Tokyo, he wanted to know if five or six blossoms had appeared on the tree as predicted.
Sadly, signboard translations in Japan don’t always include all the details that are given in Japanese, and that’s the case here, as the additional sentence in Japanese contains the following information:
▼ “The ‘sample tree’ designated by the Tokyo Regional Meteorological Observatory to observe flowering is included amongst them.”
While the general public are permitted to photograph the sample tree to their heart’s content, those wanting to publish photos for the purpose of reporting need to present their business card to the shrine office, where they’ll receive instructions on the rules, which include no entry past the sample tree fence, no touching, climbing, or close-up photography of the cherry blossoms, and no interviews with worshipers inside the shrine grounds.
There’s also a pass that needs to be worn, which lets everyone know you have permission to gather information for reporting purposes, albeit with the caveat that interviews with worshippers on the grounds is off-limits.
After picking up his permit, Mr Sato headed to the sample tree, marked in pink on the map provided.
When he approached the site, he found a sign indicating that this was indeed the city’s famous sample tree.
So…were there five or six blossoms on the tree to herald the start of sakura season as predicted by weather forecasters?
▼ Nope — none at all.
Mr Sato observed buds on the tree’s many branches, but they didn’t even look swollen, suggesting there was still a while yet for even one blossom to appear.
Though Mr Sato was surprised to see this year’s forecast was off, it also got him wondering — when will sakura season really begin? With this thought in mind, he returned to the office and showed the photos he’d taken of the sample tree to eight of his colleagues, asking them to play amateur flower forecasters and use their intuition to predict the flowering date. So what do their amateur predictions look like? Let’s take a look at them below!
▼ Yoshio’s prediction: 20 March
“Nerima is already in bloom” was the simple reason Yoshio gave for this surprisingly early date. However, as someone who’d just returned from seeing the sample tree in person, Mr Sato believes Yoshio might’ve seen an early-blooming variety, because he doesn’t think even a single flower will appear on this date.
▼ P.K. Sanjun’s prediction: 21 March
These first two predictions made Mr Sato think neither Yoshio nor P.K. had looked at his photos carefully. To repeat, having seen the real thing, Mr Sato believes there will be no flowers on the tree on March 20, nor the day after tomorrow.
▼ Mariko Ohanabatake’s prediction: 22 March
If the weather is good for the next three days, 22 March is a serious possibility. However, considering the cold weather on the 19th, it still might be difficult for them to bloom by this date.
▼ Ahiruneko’s prediction: 23 March
This prediction falls on a Saturday, which would be perfect timing for a lot of Monday-to-Friday workers. However, Mr Sato still has doubts that the start of sakura season will officially be declared on that date.
▼ Go Hatori’s prediction: 25 March
Out of all eight predictions, Mr Sato feels Go’s is the most realistic, saying it’s very, very possible. In fact, he’s certain that at least one flower will have appeared on the sample tree by then, but whether there will be five by that date is yet to be seen.
▼ Takashi Harada’s prediction: 25 March
Takashi is renowned for his lack of luck in lotteries, so Mr Sato was surprised to see him land on this highly possible date. Perhaps some natural intuition was at work? Whatever the reason, Mr Sato thought the mystery of Takashi’s highly intuitive prediction was even more intriguing than the mystery of the blossoms.
▼ Seiji Nakazawa’s prediction: 26 March
Seiji is pushing the envelope with one of the furthest dates of the lot, but if there are a few cold days between now and then, the blossoming date could very well be pushed back until then.
▼ Mr Sato’s prediction: 28 March
Mr Sato has totally pushed the boat out here, with a 28 March prediction for the start of the blooms. Granted, he’s relying on a whole lot of intuition because although his eyes tell him the flowers might start blooming on 25 March, his heart tells him those essential five to six blossoms will appear three days later.
The only thing missing from this collection of dates is…your prediction! Using Mr Sato’s photos as reference, he invites you to throw your hat in the ring as well and contribute your own ideas for when sakura season will officially be declared in Tokyo this year. There’s a good chance the flowers will start appearing within the week so now’s the time to start planning for them…and scheduling a visit to some of the country’s most popular cherry blossom sites!
Images © SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]


















Sakura season officially begins in Tokyo, latest start date in 10 years
Cherry blossoms begin blooming in Tokyo, earliest start to sakura season for third year
Speedy sakura?!? Revised cherry blossom forecast for Japan says flowers will bloom early this year
Sakura report 2019: First cherry blossoms begin to bloom in Tokyo
Cherry blossom forecast 2021 released! Sakura set to bloom early in Tokyo again this year
Cherry blossom forecasts map shows Japan’s OTHER sakura season is starting right now
Japanese women sound off on their minimum height requirements for a husband【Survey】
KanColle? More like ManColle as real Japanese men parody anime opening 【Video】
Nephew receives SD card after his uncle passes away, finds treasure trove of gems from the past
Why do Japanese stairs have red-and-yellow marks on them?
Cherry blossom sake rice beer arriving in Japan well ahead of cherry blossom season, but how?
“The revolutionary way to pick your nose!” We try out the Nose Picker
How to get all-you-can eat doughnuts at Mister Donut for just 12 bucks!
It’s like the samurai era never ended at this beautiful Japanese mountain town
How to make a lucky sushi roll with KFC fried chicken skin【SoraKitchen】
Yokai are descending upon Tokyo this spring in the latest immersive art experience
Japan’s Naruto theme park now offering real-world version of Minato’s kunai ninja weapon
Japan has a new bar just for people thinking about quitting their jobs, and the drinks are free
New Studio Ghibli stamps leave an impression on your stationery…and your heart
Japan cherry blossom forecast update moves up sakura dates for many parts of the country
Archfiend Hello Kitty appears as Sanrio launches new team-up with Yu-Gi-Oh【Pics】
Studio Ghibli turns My Neighbour Totoro characters into bag charms for everyday adventures
If you haven’t tried an antenna shop in Japan, you’re missing out
Studio Ghibli releases Spirited Away bags in Japan, based on a mysterious festival
Morning-after pill finally available in Japan without a prescription, must be taken at pharmacy
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Japan releases first official sakura cherry blossom forecast for 2026
10 times to avoid traveling in Japan in 2026
Starbucks Japan releases new Frappuccino and latte for Valentine’s Day
Our 52-year-old pole dancing reporter shares his tips for achieving your New Year’s exercise goal
China’s don’t-go-to-Japan warning looks to be affecting tourist crowds on Miyajima
Studio Ghibli releases new “komorebi” plush toys from Princess Mononoke and Spirited Away
Ramen restaurant’s English menu prices are nearly double its Japanese ones, denies discriminating
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
Cherry blossom forecast updated with later start date, full-bloom predictions added
Sakura 2017: Japan Meteorological Corporation releases first national cherry blossom forecast
Sakura forecast 2022 released! Cherry blossoms set to bloom even earlier in Japan this year
Sakura report 2019: Cherry blossom season officially declared in Tokyo!
Sakura season 2018 officially declared in Tokyo as first cherry blossoms begin to bloom
Japan releases first official sakura cherry blossom forecast for 2026
Updated cherry blossom forecast moves up blooming date, predicts sakura season start for Ueno Park
Updated sakura forecast: Cherry blossoms coming to Tokyo first, but later than first expected
Japan’s cherry blossom forecast for 2023 is here! Tokyo among cities to see sakura first
Newest Japan full-bloom cherry blossom forecast shows mankai sakura coming earlier, especially in Tokyo
Japanese weather site reveals the secret to knowing when a sakura cherry blossom will fall
Super-detailed cherry blossom forecast maps for 2025 show warm winter doesn’t mean early sakura
Japan cherry blossom forecast update moves up sakura dates for many parts of the country
Updated Japan cherry blossom forecast maps move up predicted start of sakura season
Sakura season officially declared in Tokyo, earliest start to hanami on record
Cherry blossom forecast 2020 released! Sakura season shifts to new start time in Tokyo this year
Leave a Reply