TeaHQ

Zhu Ye Zhong

The local population of Qimen county in Anhui, and the plant material behind Keemun black tea. It is a seed-grown group variety rather than a clonal cultivar — a landrace — although selections have since been made from it. Keemun’s character is conventionally attributed to this material together with the county’s climate and its particular manufacture, and separating those three has never been done cleanly.

櫧葉種Camellia sinensis var. sinensisChinaAlso called Qimen Zhu Ye ZhongAlso called Keemun population

Where it sits in the botany

Zhu Ye Zhong is recorded under Camellia sinensis var. sinensis, the variety group one level above cultivar. It is associated with China, which is where it was selected or is most widely planted rather than the only place it grows.

Also transliterated as: zhu ye zhong, zhuyezhong.

Where it came from

A local seed-grown population long established in Qimen county, from which Keemun black tea is made and from which named selections have subsequently been taken.

How firm this is: Inferred rather than taken from a primary breeding or registration record. The association between the population and the tea is well established. The population’s own history is not documented in a form TeaHQ could verify.

What the plant is like

Small, thick, dark leaf on plants that vary bush to bush, as any seed population does. Being a population rather than a clone, it flushes unevenly, which is one reason Keemun manufacture is as much about sorting as about oxidising.

Why a grower plants it

Yield, hardiness, when it buds, what it resists and whether a machine can cut it. This is the half of a cultivar’s identity that decides what is actually in the ground, and it is usually left out of writing aimed at drinkers.

A seed-grown population, so it flushes unevenly bush to bush, and that single agronomic fact shapes how Keemun is made. Uneven flushing means a picked lot contains leaf at several maturities, which is why Keemun manufacture puts so much weight on sorting — the fine even twist the tea is known for is a product of grading a variable input rather than of a uniform crop. Selections have since been taken out of the population, so a modern Qimen field may be landrace, clone, or both.

What it does in the cup

Reported as giving the sweet, faintly cocoa-and-pine character the trade calls the Keemun note, over a light body by black-tea standards. The tea is not smoked, and the resemblance to smoke is one of the more durable misunderstandings in the subject.

How much of this is really the cultivar?

The Keemun note is conventionally attributed to the population, the county's climate and the manufacture together, and those three have never been separated cleanly by anyone. TeaHQ is not in a position to separate them either, and says so rather than crediting the plant. What can be said is narrower and more useful: the population's variability is real, it is why sorting matters so much in Keemun, and a Keemun's grade — how much of the sorting effort went into it — will move the cup further than any question about which bushes it came off.

Cultivar, growing site and processing all shape a cup, and the cultivar is very often the smallest of the three. It is also the one that fits on a label, so almost every commercial incentive runs toward overstating it. This section is on every cultivar page that has been reviewed for it, including the ones where the honest answer is “less than you would think”.

What it is usually made into

The categories this cultivar is typically processed into. It is a statement about common practice, not a limit — processing decides the category, and a cultivar can be taken down more than one route.

  • Black tea — Tea taken deliberately through full enzymatic oxidation, giving the dark leaf, amber-to-red liquor and malty or brisk character most Western drinkers think of as simply 'tea'.

Teas in the catalogue made from Zhu Ye Zhong

Other cultivars in Camellia sinensis var. sinensis

Sources

  • TeaHQ editorial synthesis — TeaHQ

This page is TeaHQ’s own synthesis throughout. No breeding register or institutional record stands behind the account above, which is why the origin note carries its confidence in the open rather than reading as a citation.

How TeaHQ handles sources

Written comparisons

Where TeaHQ has set this cultivar against something it is routinely confused with, and argued the differences out in full.

  • Zhu Ye Zhong vs Zhu Ye Qing: two 'bamboo leaf' names with nothing in common — Both names begin with the characters for bamboo leaf and the resemblance stops there. Zhu Ye Zhong is the Anhui landrace behind Keemun black tea; Zhu Ye Qing is a Sichuan green made only from very early buds. Anyone assuming the second is made from the first has assembled a plausible and entirely wrong sentence.