The big picture
White tea has the smallest map in Chinese tea, and almost all of it sits in one corner of northeast Fujian.
Fuding is the centre, a coastal county in Ningde with the Taimu mountains behind it.
The climate there is humid and mild, with sea fog that suits the long slow withering the category needs.
Zhenghe lies inland and slightly higher, and it is the second name that matters.
Both sit near 27 degrees north, which puts them at the warm eastern edge of the Chinese tea belt.
The two counties sit within about 100 km of each other and share a border in the tea hills.
The Taimu gardens run from near sea level to about 800 m, and the highest sites pick latest.
Jianyang, between them, produces much of the country’s Gong Mei from a smaller leaf population.
Together those three counties account for most genuine white tea made anywhere in the world.
Outside them the map thins quickly, and the next biggest area is Yunnan.
Yunnan makes yue guang bai（月光白）from broad leaf assamica, which is a different tea under a familiar name.
Sichuan, Guangxi and Zhejiang all produce small amounts, mostly for local sale.
A map this small is unusual, and it explains both the consistency of the category and its pricing.
Reading the map
Read the white tea map by cultivar first, since the districts are defined by what grows in them.
Fuding Da Bai is the reference cultivar, a large budded bush with heavy white down.
It was selected in Fuding and is now planted well beyond the county, including in Yunnan.
Zhenghe Da Bai is a separate selection, slightly less downy and more tolerant of cooler inland conditions.
That difference is small on paper and clear in the cup, where Zhenghe gives a thicker liquor.
Plot the two counties and the pattern is a tight pair rather than a spread of villages.
Within Fuding, the gardens around Taimu Mountain and the higher sites produce the most sought after leaf.
Within Zhenghe, cooler nights do the same work, and the leaf is picked a little later.
The surrounding counties grow the same cultivars and sell their leaf to factories in the centre.
That is the familiar shape: a small core that owns the name, and a fringe that supplies it.
Outside Fujian, the map stops being about place and starts being about leaf type instead.
Why geography matters
Geography matters here mainly through humidity, which is the hardest thing to manage in this craft.
White tea is withered for 36 to 72 hours, and that process is entirely at the mercy of the air.
Fuding’s coastal fog gives a mild damp climate that suits slow withering almost perfectly.
Too much rain and the leaf cannot be spread at all, which is why sun withering is a seasonal claim.
Zhenghe’s inland valleys are cooler at night, which slows the withering differently.
Most makers aim to finish the withering within 48 hours, and past that the leaf starts to lose sweetness.
That is part of why Zhenghe tea tastes rounder and less brightly floral than Fuding tea.
Soil matters less than in some categories, since the cultivars are tolerant and the process is gentle.
What does matter is that leaf picked in the wet spring flush holds more water and needs longer.
Method grew out of that constraint, and the bamboo rack exists to let air move under wet leaf.
Trough withering came later, and it exists because the weather cannot be relied on year after year.
So the geography set the method, and the method is now what defines the category.
A starting point
Start with the two counties, because almost every white tea you meet comes from one of them.
Buy a Silver Needle and a Bai Mudan from Fuding, and the same two grades from Zhenghe.
Four cups is enough to hear the difference between the two centres, which is real but not dramatic.
Add a Yunnan yue guang bai afterwards, and the category map suddenly looks wider than it did.
That comparison teaches more than any description, since the leaf type difference is immediately obvious.
Then add altitude, which matters within Fuding in the same way it matters everywhere else in tea.
After that, look at the GI boundaries, which for white tea are unusually well drawn.
Fuding white tea has a protected designation covering specific townships rather than a whole province.
That is more useful than most origin labels, and it is worth learning where the line falls.
Regional difference is the final layer, and it is subtler here than in any other category.
Learn the two counties first, and the rest of the category arranges itself around them.