Sumo Citrus Just Appeared In Your Grocery Store—Here’s Why

Even during the dreary winter months that start the year, we can take comfort in a few things. Personally, I like good soup, warm drinks and the bright burst of citrus fruit that comes into season each January. In addition to the typical bag of oranges, there’s another fruit you should throw in your cart right now.

What is sumo citrus?

It’s a fruit that was originally cultivated in Japan in the 1970s, where it was called the Dekopan. It arrived in the United States in 1998, but since produce can take a long time to scale and prepare for mass distribution, it didn’t become available in U.S. supermarkets until 2011. Here, it’s known as sumo citrus, so named because the fruit has the “top knot” of a sumo wrestler.

It’s a bumpy, wrinkly variety of citrus, looking generally disheveled (in a charming way). Ever since its introduction here nearly 15 years ago, it’s enjoyed a steady uptick in popularity as its availability expanded from Whole Foods to other national retailers, occasionally going viral online as people eagerly share what they love about sumo citrus.

One big reason they’re so beloved is the flavor. Compared to some tart varieties of orange, these are super sweet. They’re also easy to peel, and they’re cultivated to be both seedless and juicy. Enthusiasts note that the fruits with the most prominent “top knot” and a slight give when squeezed will be the ripest and most delicious.

Citrus researcher David Karp told The Guardian that the distinctive look of sumos has helped make the fruit a phenomenon—they’re instantly recognizable even to the casual fruit consumer, and they stand out among the more spherical offerings at the grocery store.

When is sumo citrus season?

In Japan, the Dekopan is in peak season from December to February. In North America, the season runs from January to April.

Redditors excitedly herald the return of sumo citrus to Trader Joe’s each year despite the high price point. The Sumo Citrus company readily admits that sumo citrus costs more than other oranges. “Despite its rugged appearance, this delicate fruit requires far more expertise and gentle handling than any other piece of citrus,” reads the website’s FAQ. “Even the trailers used to transport Sumo Citrus are designed to use special airbags that avoid jarring or bumping the fruit and give it a smooth and safe ride to your local store.”

That level of dedication results in a flavor customers love—customers who will buy up the whole supply at your grocery store if you don’t get there first!