Hokkaido, Japan’s largest and most northern prefecture, is known for its agriculture. One crop in particular is gaining increased attention in recent years: the haskap.
Japan’s large northern island produces much of Japan’s milk and eggs. Crops grown in its sprawling fields include wheat, potatoes, sweet corn, pumpkins, soybeans, azuki beans, and many more.
And there’s also haskap, a distinct bluish-purple berry that thrives in cold climates and can be made into a variety of tasty sweets. Found almost nowhere else in Japan, the haskap has become a symbol of Hokkaido for residents and visitors alike.
What Is Haskap?

Haskap (ハスカップ) is the Japanese name for Lonicera caerulea, a member of the honeysuckle family found exclusively in the colder regions of the Northern Hemisphere. Other names for the plant and its fruit include blue honeysuckle, fly honeysuckle, sweetberry honeysuckle, and honeyberry.
Hokkaido is one of the world’s largest producers. But it is also found in northern and central Canada, northeastern China, much of Russia, and the northern United States [1].
Scientists currently believe the berry was brought to Japan by birds who ate the fruit in the Sakhalin region of Russia and later defecated the seeds after flying to Hokkaido.
ピンちゃん♪*゚ on X (formerly Twitter): “帰り道のハローズ店で北海道しかない幻の果実ハスカップフォロワーさんがお薦めしていたお土産激戦地の北海道での「よいとまけ」すごく美味しいー✨もうひとつ買えば良かった pic.twitter.com/qhEnx49Trt / X”
帰り道のハローズ店で北海道しかない幻の果実ハスカップフォロワーさんがお薦めしていたお土産激戦地の北海道での「よいとまけ」すごく美味しいー✨もうひとつ買えば良かった pic.twitter.com/qhEnx49Trt
The name comes from the language of Hokkaido’s native Ainu people. It is derived from hashikapu, a word that means “something that grows abundantly.” It is sometimes also called yunomi, an Ainu word meaning “long, thin fruit.” [2]
This is an accurate description of haskap’s appearance; the berries are bluish-purple in color and are longer and more rectangular in shape than blueberries or blackberries. The plants can also be identified by their yellowish-white, five-petaled flowers. The plants are extremely hardy and can survive temperatures as low as -53 degrees Fahrenheit (-47 degrees Celsius). They are also highly resistant to most mildews, fungus, and parasites and can weather highly acidic soil.
Haskap and Hokkaido

Farmers have grown and cultivated in the berry in Hokkaido for many years. It remains a popular crop on the island today. The berries are primarily cultivated on farms but some plants can be found growing in the wild. They grow best in wet, marshy regions such as the Tomakomai area on the outskirts of Sapporo and Shiretoko National Park in northeastern Hokkaido.
Haskap berries are typically harvested from late June through late July, when they are at their ripest. Some towns, such as Atsuma-cho, offer one-day picking experiences for residents and tourists, allowing them to harvest baskets of berries for themselves.[3]
ucchiy61 on X (formerly Twitter): “#ハスカップ #ジュース #新千歳空港 #北海道 甘っ!意外と酸っぱくない💦 pic.twitter.com/8b0lMGvKPp / X”
ハスカップ #ジュース #新千歳空港 #北海道 甘っ!意外と酸っぱくない💦 pic.twitter.com/8b0lMGvKPp
While haskap berries can be eaten raw and have a sweet-sour flavor, they are more often used in cooking. In Hokkaido, people make the berries into jams, jellies, sweets, ice cream, teas, and wines. Haskap flavored sodas and waters are popular products in Hokkaido convenience stores.
Planning a trip to Japan? Get an authentic, interpreted experience from Unseen Japan Tours and see a side of the country others miss!

"Noah [at Unseen Japan] put together an itinerary that didn’t lock us in and we could travel at our own pace. In Tokyo, he guided us personally on a walking tour. Overall, he made our Japan trip an experience not to forget." - Kate and Simon S., Australia


Want more news and views from Japan? Donate $5/month ($60 one-time donation) to the Unseen Japan Journalism Fund to join Unseen Japan Insider. You'll get our Insider newsletter with more news and deep dives, a chance to get your burning Japan questions answered, and a voice in our future editorial direction.

Stay connected while in Japan with an eSim from our partners at Inbound Platform. Get fast and unlimited 5G data, access across 99% of the country, and excellent English language customer service. No chip to install - just download into your phone and use as soon as you land! (Affiliate link)

Get the white-glove treatment with a luxury ride from the airport – Haneda, Narita, or Osaka (KIX) – with Inbound Platform’s taxi service. Your driver will be waiting for you at the airport. If there are issues, you can depend on their highly-rated English language customer support. (Affiliate link)

Want to speak better Japanese before your trip to Japan? Or just for fun? Use Preply to connect with a native speaker and practice, no matter where you are in the world. Improve your Japanese while also making new friends and learning about Japanese culture and history. (Affiliate link)
Omiyage (souvenirs) from Hokkaido are often haskap–flavored, such as cookies or chocolates. In particular, the sweets brand Morimoto produces a number of haskap–flavored goodies. They are most famous for “Haskap Jewelry,” thick cookies coated in chocolate and filled with buttercream in haskap jam. Recently, Morimoto paired with the Sapporo and Tomakomai tourism boards to declare July 7 as “Haskap Day,” a prefecture-wide celebration of the berry and its uses. [4]
The Growing Popularity of the “Fruit of Youth”
In recent years, people around the world have discovered the health benefits of haskap berries. The fruit is rich in Vitamin C, Vitamin E, and a variety of antioxidants.
As a result, some have nicknamed the berries the “Fruit of Youth” due to the role of Vitamin E in improving health and longevity. Manufacturers have also started selling powders and supplements derived from the berry outside of Japan.
x.com
No Description
Due to the growing popularity of haskap, farmers and hobby growers alike have begun to cultivate plants in the United States, Europe, and Canada. Cornell University and Utah State University published guides for growing haskap in the United States, including recommending strains of both Japanese and Russian versions of the plant which can survive outside of their native environment. [5]
If you live in a colder region, you may even be able to grow your very own plants in your garden or backyard. However, if you don’t live in an area where you can grow your own haskap, definitely give some flavorful jam or sweets from Hokkaido a try!
Have thoughts on this article? Share them with us on our Bluesky account or the Unseen Japan Discord server.
Tip This Article
We’re an independent site that keeps our content free of paywalls and intrusive ads. If you liked this story, please consider a tip or recurring donation of any amount to help keep our content free for all.
What to read next

Jirō Ramen Asks Customers to Stop “Jirō Harassment” of New Employees
The Kameido store says it’s “repulsed” watching senior employees trick juniors into eating their 2,000+-calorie large bowls.

Be Careful If You Visit This Japanese Hamburg Steak Chain, Experts Warn
Kiwamiya is drawing in tourists with its “cook it yourself” hamburg steak. But some warn food poisoning may just be one plate away.

After Cockroach Found in Food, Sukiya Will Temporarily Close Most Stores
The 24-hour beef bowl chain, which recently admitted it had served someone a dead mouse, says it’ll close most of its stores for four days.
Sources
[1] HASKAPA. “Top 10 Haskap Berry Facts.” Link.
[2] Hokkaido Labo. “不老長寿の北国果実、ハスカップ!北海道ならではの魅惑の果実とは?”. 5 March 2019. Link.
[3] Hokkaido Wilds. “Hokkaido Cycle Touring: Haskap Berry-Picking in Atsuma Town.” 26 October 2018. Link.
[4] Morimoto Sweets. “北海道特産果実「ハスカップ」の魅力とは?不老長寿と言われる理由.” 7 June 2021. Link.
[5] Black, Brent, Elisa Lauritzen and Tiffany Maughan. “Haskap in the Garden.” Utah University. August 2015. Link.