Square Watermelons History: How The Fruit Became Popular
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Human creativity knows no bounds, and the square watermelon is a testament to that. While traditional watermelons have a familiar round shape, the square watermelon surprises and delights with its unusual form.

In this article, we will delve deep into the intriguing world of square watermelons, exploring their origins, the cultivation process, the aesthetics and functionality they offer, pricing and availability, and the fascinating reasons behind their creation.

The Origins of Square Watermelons

Square watermelons first appeared in Japan during the late 1970s. The brainchild of innovative Japanese farmers, the square watermelon emerged as a solution to space constraints and the challenges of transportation. Through experimentation, farmers discovered that by placing young watermelon fruits inside square glass containers during their growth phase, they could influence their shape. 

As the watermelons matured, they assumed the form of the container, resulting in the creation of square watermelons. This unique cultivation process gained popularity quickly due to the novelty and artistic value of the square watermelons, turning them into sought-after luxury items and decorative centrepieces.

The Cultivation Process

The cultivation of square watermelons is a meticulous and time-consuming endeavour. Farmers carefully select young watermelon fruits and place them in specially designed moulds or boxes while they are still developing. 

These moulds, usually made of wood or plastic, are precisely measured and constructed to control the fruit's growth and encourage a cubic shape. The containers feature slits or holes to allow the watermelon vines and tendrils to grow naturally while maintaining the desired square form.

To ensure uniform growth and prevent deformities, farmers monitor the watermelons closely throughout the process. They carefully manage factors such as nutrient intake, sunlight exposure, and temperature, making adjustments as necessary to maintain optimal growth and the distinct square shape.

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In Japan, where square watermelons are most commonly found, they can be significantly more expensive, often costing several times the price of regular watermelons. The scarcity and exclusivity of square watermelons make them desirable and sought-after by collectors and those looking for unique culinary experiences. 

While square watermelons are primarily cultivated in Japan, their popularity has sparked interest in other regions as well. Some farmers and horticultural enthusiasts in different parts of the world have attempted to grow square watermelons using similar techniques, albeit on a smaller scale. However, due to the intricate cultivation process and limited demand, square watermelons remain relatively rare and are typically found in select markets or specialty stores.


Square watermelons are a captivating fusion of human ingenuity and nature's whimsy. Their unconventional shape, born out of careful cultivation techniques, has made them objects of fascination and admiration. While they come with a higher price tag and are not as widely available as their traditional counterparts, square watermelons continue to enchant people worldwide. 

Whether as ornamental pieces or unique culinary experiences, these quirky fruits showcase our endless fascination with the extraordinary in the realm of fruits, reminding us of the wonders that nature and human ingenuity can create together.