Japan’s iconic cherry blossoms are feeling the impact of severe climate change. Here’s how

The cherished Japanese tradition of cherry blossom viewing, known as "hanami," should ideally be a simple joy. Each year, during early spring, these delicate flowers grace the country for about 10 days, inviting a nationwide celebration of outdoor picnics and leisurely daytime revelry.

However, this annual celebration has been tinged with apprehension. Climate change has infused uncertainty into the once-predictable timing of cherry blossom blooms, as reported by The Times.

Amongst flowers worldwide, none are awaited with as much anticipation as the sakura, or flowering cherry. These blooms symbolise the advent of spring, and mark the beginning of the academic and fiscal year in Japan.

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Dominance of Somei-Yoshino

In previous centuries, a diverse array of cherry blossom species flourished.

However, over the past century, one variety has come to dominate: the Somei-Yoshino. These cloned trees, with their fluffy pink-white blossoms, bloom simultaneously but fleetingly, lasting barely a week.

While Somei-Yoshino trees are popular, they are susceptible to a disease called witches' broom, which mars their appearance and inhibits flowering. Recognising this threat, the Flower Association of Japan has ceased distributing Somei-Yoshino in favour of a heartier alternative known as Jindai Akebono.

The impact of climate change

Climate change has introduced new uncertainties into the timing and duration of cherry blossom blooms.

Rising temperatures and shifting weather patterns have disrupted the once-definite schedule of sakura blossoms, leading to challenges for tourism operators and local businesses that depend on the annual influx of visitors during peak bloom season.

According to the Japan Meteorological Agency, the average date of cherry blossom blooming has been advancing by approximately 1.2 days every decade since 1963, creating logistical challenges for organisers of hanami events and tours.

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In response to the challenges facing cherry blossom viewing, efforts are underway to diversify tree varieties and promote more resilient species. The Flower Association of Japan has discontinued the distribution of Somei-Yoshino trees in favour of hardier alternatives such as Jindai Akebono. Additionally, conservation initiatives aim to protect cherry blossom trees from diseases and environmental threats, ensuring their continued presence for future generations to enjoy.

(With inputs from agencies)