Why do people picnic under cherry trees for just one or two weeks each spring?
In late March–April, parks fill with groups sitting on tarps under blooming cherry trees, eating, drinking, and reserving spots hours ahead. Forecasts track the 'blossom front' moving north across Japan.
Hanami blends an old aesthetic of savoring fleeting beauty with a modern spring ritual amplified by media forecasts and workplace social bonding.
Why — five layers
The short bloom embodies mono no aware—an appreciation of impermanence—so its very brevity is the point, not a flaw.
Company and friend groups use hanami as a low-cost bonding event; juniors are often sent early to hold the best spot.
The blossoming roughly coincides with Japan's April start of the school and fiscal year, tying the flowers to fresh starts.
Weather agencies and media publish sakura forecasts, and shops flood the season with pink-themed limited goods, turning it into a national countdown.
International view
Many countries celebrate spring blossoms (e.g., Washington D.C., Korea), but Japan's scale of forecasting, spot-reserving, and eating/drinking beneath the trees is unusually organized.
But not always
Not everyone drinks or parties—many just take a quiet stroll, and some parks ban alcohol or tarps entirely.
What to do
Bring your own tarp, bags for all trash (bins are scarce), and don't snap branches or climb trees. Popular spots fill by mid-morning on weekends.
Sources
- Japan Meteorological Corporation sakura forecast
- general ethnographic accounts of hanami