Shikaku Suika Square Watermelon

Japanese Premium Square Watermelon, also known as Zentsuji Shikaku Suika, is a rare and iconic cube-shaped watermelon grown exclusively in Zentsuji City, Kagawa Prefecture, Japan. With its perfectly geometric shape and bold, vertical green stripes, this Japanese square watermelon is one of the most unique and visually striking fruits in the world.

This extraordinary fruit, often compared to a dice, is cultivated by placing young watermelons into specially crafted tempered glass molds. As the fruit grows, it naturally takes on its square form, showcasing Japan’s expertise in precision agriculture.

Beyond its appearance, the Zentsuji cube watermelon is seen as a symbol of status and creativity. Its shape makes it easier to store, stack, and cut compared to conventional round melons. While it is technically edible, most are harvested before fully ripening to maintain their structure, making them ideal for display, decoration, or as a luxury gift in Japan.

Thanks to the hot and dry climate of Kagawa Prefecture, Zentsuji is the perfect place for cultivating high-quality watermelons. Today, the Japanese Premium Square Watermelon is not only a specialty fruit but also a collectible item often gifted during festive seasons or formal occasions. It’s a stunning centerpiece that blends traditional farming with modern design.

STORAGE

Keep refrigerated and treat like any premium melon: chill before serving for the best texture and sweetness. Store away from direct sunlight and cut in slices vertically to maintain its iconic appearance.

FUN FACTS & TIPS

The concept was first introduced in the 1970s as a local innovation in Zentsuji City,  A common gift during summer in Japan, symbolizing abundance, status, and refinement.

COMMON QUESTIONS

Q: Can you eat a Japanese square watermelon?
A: Yes, square watermelons are edible, but most are harvested before full ripeness to preserve shape, making them better suited for ornamental purposes.

NUTRITION & HEALTH BENEFITS

• High water content for hydration
• Rich in lycopene, an antioxidant known for heart health and cancer prevention
• A good source of vitamins A and C
• Supports healthy skin and immune function
• Naturally low in calories and fat

A good source of vitamins C and B6 as well as potassium and fiber


Common Names: Zentsujisan Shikakusuika, Zentsuji Shikaku Suika,Zentsuji Square Watermelon, Registration No.82 善通寺産四角スイカ