Tokyo blossom safety concern

Tokyo’s cherry blossom season is supposed to feel weightless. For a few days each spring, the city gathers under pale pink canopies for hanami picnics, photos, and the annual ritual of admiring something beautiful because it will not last. This year, the trees themselves have become part of that lesson. On April 2, two aging Somei Yoshino cherry trees collapsed in Tokyo, one at Kinuta Park and one along the Chidorigafuchi greenway near the Imperial Palace moat. No one was hurt, but the timing was jarring. Tokyo had reached official full bloom on March 28, right as crowds were arriving in force (nippon.com, apnews.com). The problem is not mysterious. Many of Tokyo’s most famous cherry trees were planted during the postwar building boom of the 1960s. That means a huge share of the city’s sakura are now old at the same time. The tree that fell at Kinuta Park was about 18 meters tall, 2.5 meters across, and believed to be more than 60 years old. Officials say aging and internal fungal decay are major reasons these trees are failing. In March, another old cherry tree at the same park collapsed and injured a passerby, which turned a scenic problem into a public-safety one (abcnews.go.com, newsday.com). That is why this is bigger than two fallen trunks. Last year, 85 trees fell in Tokyo parks and three people were injured, according to Masakazu Noguchi, a Tokyo metropolitan official cited in recent reporting. Many of those trees were cherry trees. Before this year’s peak viewing season, officials inspected more than 800 cherry trees at Kinuta Park alone, cut down some, and posted warnings near others. Even so, the tree that fell on April 2 had not been marked. That detail matters because it shows the limit of quick visual checks. A tree can still look good enough for photos while failing from the inside (apnews.com, philstarlife.com). The visitor experience is already changing around that uncertainty. Some trees now stand with support braces. Others have warning signs nearby. A few have been removed outright. That does not mean Tokyo’s blossom season is ruined. The city’s own tourism guidance still points visitors to a long list of bloom spots and notes that the season runs from late March into early April. But it does mean the postcard version of hanami now comes with a maintenance problem in plain sight. The famous trees are not simply blooming and shedding petals. They are being triaged (gotokyo.org, apnews.com). And the obvious fix is slower than the crisis. Replanting can replace a dangerous old tree, but it cannot replace what people came to see. A new sapling does not create a tunnel of blossoms over a moat or a picnic lawn for decades. Tokyo is dealing with the awkward biology of urban heritage: the trees that made these places famous were planted in a single burst, and now they are aging in one. At Chidorigafuchi, one of the city’s best-known blossom walks, that reality showed up in the most concrete way possible when a fallen tree nearly tipped into the Imperial Palace moat (abcnews.go.com, gotokyo.org).