What is Shizuoka Zairai #16 cultivar? (静岡在来)

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What is Shizuoka Zairai #16 cultivar? (静岡在来)

In Japan, you can find a wide variety of teas ready to get devoured. The taste of all these varieties is something that you haven’t tasted before. One of the best versions of organic Japanese tea is the Shizuoka Zairai #16 cultivar. In this article, we are going to unleash everything there is to know about the Shizuoka Zairai #16 cultivar and how the taste of this cultivar will leave you wanting more.

What is a cultivar?

First thing first. A lot of people may not know about the meaning of ‘cultivar,’ while some may be hearing this word for the first time in their lives. A cultivar literally means cultivated variety. When the farmers identify some of the main and astounding characteristics of a plant, they tend to preserve the plant’s DNA with the help of the propagation of new trees through cutting.

Cross-bred tea varieties started long before 1960 in Japan, and they have been a part of this country ever since. Over 200 cultivars are currently present within the premises of Japan, with Yabukita having the lead. But, recently, the Shizuoka Zairai #16 cultivar has also been one of the people’s favorites. The cultivation of this tea has increased from 2% to a total of 10%.

Green Tea Steaming Process - Light Steamed (Asamushi) vs Medium Steam (Futsumushi) vs Deep Steam (Fukamushi)

How is Shizuoka Zairai #16 cultivar named?

The word Zairai means native or something that comes from the indigenous regions. This cultivar is known as Shizuoka Zairai because it is grown in various regions of Shizuoka. The cultivation of this tea dates back to ancient times when farmers used a variety of seeds to grow Shizuoka Zairai. As far as the appearance and taste of this plant are concerned, both of them vary depending upon the region, even the farm. However, most of them have similar tastes.

Characteristics of Shizuoka Zairai #16 cultivar

Most of the Shizuoka Zairai plants are hundreds of years old unless you talk about an old Zairai tea field. In the case of a tea field, the plants of the tea get trimmed regularly, and, now, they have grown into fully-nourished tea trees.

Compared to the Yabukita cultivar, only about half of these tea trees are productive and provide us with something valuable. But, on the other hand, these trees are quite pest-resistant, and their roots can be found quite deep in the soil. The leaves of these trees contain highly nutritional and mineral content. However, the most important characteristic of this cultivar is that the tea extracted from it is quite rare.

One of the main characteristics of the Shizuoka Zairai is their appearance, aroma, color, and taste are different from one another. It mostly depends upon the cross-bred tea varieties used by the farmers. But, in the overall sense, whatever the blend is, Shizuoka Zarai is always considered to be a natural blend, containing zero additives and condiments.

Shizuoka Zairai #16 cultivar further contains a lot of varieties, each of which has its own price and characteristics. Some may be more expensive than others. Again, it all depends on what kind of blend the farmer is using to cultivate Shizuoka Zairai. Other characteristics of the Shizuoka Zairai #16 cultivar include the presence of essential amino acids and antioxidants that help strengthen the immune system of people. It is also found that this cultivar provides symmetry.

What does the Shizuoka Zairai #16 cultivar taste like?

One thing is for sure if you want to experience what the taste of tea in old Japan was, you have to try a cup of Shizuoka Zairai tea. A large number of Japanese people still consider it as an indispensable historic asset, one that lasts forever. They believe that even if Shizuoka Zairai stops being cultivated, its taste will be preserved forever.

Now, talking about the taste of this cultivar, it has an umami taste which means it is quite savory to the human palate. It’s like a burst of exotic flavors in your mouth that quench all your thirst and hunger for the richest flavored tea. It also has mild caffeine in it. So, if you want a mild boost of energy in the morning, just to get you started, this is your tea.

However, keeping its aroma in view, have you ever roamed around a garden where the fresh grass is being cut? This is exactly what this cultivar smells like. Whenever you make a cup of Zairai tea, it will feel like you’re sitting in a freshly trimmed garden, surrounded by the earthy wonders and just ravishing everything within your sight.

Final Takeaways

Suffice it to say that the Shizuoka Zairai #16 cultivar is one of a kind. Its taste takes you back to the old Japan while its aroma fills your nostrils with earthy beauty. Shizuoka Zairai is a cultivar that dates back hundreds of years, and still, its flavor is preserved.

Thus, if you to experience something similar, get the Shizuoka Zairai #16 cultivar and make yourself a steaming hot cup of tea. You will forget all the worldly worries.

Shizuoka Zairai #16 — Frequently Asked Questions

What is the Shizuoka Zairai #16 cultivar?

Shizuoka Zairai #16 (静岡在来) is an indigenous Japanese tea cultivar grown across various regions of Shizuoka Prefecture. The word "Zairai" means "native" or "indigenous" — these are tea plants whose lineage pre-dates the modern cultivar breeding programs that began in earnest after the 1960s. Many Shizuoka Zairai trees are hundreds of years old, sustained through regular trimming, and produce a rare and distinctive tea that some Japanese drinkers consider a living historic asset.

Yabukita Tea Cultivar (やぶきた)
Yabukita Tea Cultivar  (やぶきた)

What does Shizuoka Zairai mean?

"Shizuoka" refers to the Shizuoka Prefecture where the cultivar is grown, while "Zairai" translates as "native" or "from the indigenous region." The combination effectively names a category of pre-modern, native Japanese tea plants rather than a single bred cultivar. Each Zairai planting can vary in appearance, aroma, color, and taste depending on the region and even the specific farm — a quality that makes Shizuoka Zairai teas distinct from each other but reliably rooted in their place of origin.

How is Shizuoka Zairai different from Yabukita?

Yabukita is a deliberately bred modern cultivar — registered in 1956 and selected for high yield, frost resistance, and consistent flavor. Shizuoka Zairai #16 represents an older, indigenous lineage that pre-dates modern breeding. Only about half of Shizuoka Zairai trees are commercially productive compared with Yabukita's yields. However, the older trees are exceptionally pest-resistant, with deep root systems that draw on a long history in the local soil, producing leaves with high nutrient density and a rare, varied flavor profile.

What does Shizuoka Zairai #16 taste like?

Shizuoka Zairai #16 has a savory umami body with mild caffeine — the cup is described by many Japanese drinkers as a window into what green tea tasted like in older Japan. The exact flavor varies by region, sometimes by farm, because Zairai is a category rather than a single bred variety. Most cups carry a complex blend that has no additives or condiments — what reaches the brewer is what the trees naturally produce. For drinkers who want a connection to historical Japanese tea, Shizuoka Zairai is one of the few remaining authentic options.

What modern cultivars descend from Shizuoka Zairai?

Shizuoka Zairai #16 has been used as a parent plant in several modern Japanese tea cultivars. Okumidori — cultivar number 32, registered 1974 — was bred from a cross between Shizuoka Zairai #16 and Yabukita. Kanaya Midori — cultivar number 30, registered 1970 — was bred from the same cross. Both descendants carry forward Shizuoka Zairai's flavor depth and disease resistance while delivering the higher yields and consistency that modern commercial tea production requires.

What is Okumidori (おくみどり 奥緑)
What is Okumidori (おくみどり 奥緑)
What is Kanaya Midori (かなやみどり)?
What is Kanaya Midori (かなやみどり)?

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About the author

Kei Nishida

Kei Nishida

Author, CEO Dream of Japan

info@japanesegreenteain.com

Certification: PMP, BS in Computer Science

Education: Western Washington University

Kei Nishida is a Japanese green tea connoisseur, writer, and the current steward of ShizuokaTea.com and Green Tea Merchant.

ShizuokaTea.com was originally founded by Kent Roy Rhoads, a pioneer of online Japanese green tea sales who helped introduce authentic teas from Shizuoka and Kagoshima to customers around the world. Kei and the Dream of Japan team continue to honor Kent’s legacy by preserving the same commitment to high-quality Japanese tea, reliable service, and long-standing relationships with tea producers in Japan.

In 2020, Dream of Japan acquired ShizuokaTea.com, KagoshimaTea.com, and Green Tea Merchant, with the goal of continuing Kent’s work while bringing renewed care, storytelling, and tea education to a new generation of tea lovers.

Today, the ShizuokaTea.com blog, also known as the Green Tea Merchant Blog, is especially focused on helping wholesale buyers, cafés, restaurants, retailers, and tea-related businesses make informed decisions when sourcing Japanese tea. Building on Green Tea Merchant’s decades-long history of serving wholesale customers, the goal is to make this blog one of the best online resources for companies buying tea—offering practical guidance, product knowledge, sourcing insights, and educational content rooted in real experience.

Kei’s mission is to share the depth, beauty, and tradition of Japanese tea with the world while supporting businesses that want to serve authentic Japanese tea with confidence.

Green Tea Knowledge

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