Experts have released guidelines on how to identify the sweetest watermelons and ranked the top producing regions across Japan [1].
Understanding these selection markers and regional production helps consumers make informed purchases during the peak summer season. With high-end varieties reaching extreme price points, knowing the quality indicators is essential for buyers.
Kou Sato, representative of the watermelon mail-order specialty store "Amai Suika," said watermelons can be grown in various soils if drainage is good. He said that cultivation can be adjusted to fit different climates [1].
To find a fruit with high water content and sweetness, buyers should look for specific visual cues. These include distinct stripes, a surface with irregularities, and a green vine [1].
Data from June 2024 shows that Kumamoto leads the nation in production with 42,100 tons, accounting for 15% of the total [1]. Chiba follows with 37,100 tons, or 13% [1]. Yamagata ranks third with 29,600 tons, representing 10% of the total [1].
Tottori and Hokkaido both contribute approximately six% of the national harvest, with Tottori producing 18,900 tons and Hokkaido producing 18,500 tons [1].
While most watermelons are affordable, some luxury varieties command premium prices. The "Densuke" watermelon from Hokkaido is a notable example of this high-end market. Caster Sumina Yamagata said the highest price for one of these fruits is 750,000 yen [1].
“"The highest price is 750,000 yen per fruit."”
The wide gap between standard regional production and the extreme pricing of the Densuke watermelon illustrates a bifurcated market in Japanese agriculture. While the majority of the industry focuses on volume and accessibility in prefectures like Kumamoto and Chiba, a niche luxury segment transforms produce into high-value collectibles, driving significant prestige and brand value for specific regions like Hokkaido.
