Gushu means old tree. In puerh, it describes leaf picked from large-leaf tea trees that have grown for a long time, usually taken to mean a century or more, often in forest or old gardens rather than pruned rows. There is no legal definition, no certification and no reliable way to confirm a tree's age from the leaf, so a gushu label is the producer's claim. Judge the tea in the cup and the seller by their record.
What do gushu, lao shu and taidi mean?
Gushu (ancient tree) and lao shu (old tree) are used loosely and often interchangeably. Da shu means big tree, usually a step below. Qiao mu means arbor: a tea plant left to grow as a tree with one trunk rather than cut back into a bush. Taidi cha, terrace tea, is the opposite: plantation bushes in rows, pruned low for easy picking and high yield. Ye sheng, wild, is the loosest word of all, covering anything from truly wild plants to old gardens abandoned and overgrown.
No one agrees on the age at which a tree becomes gushu. A hundred years is a common line. Some sellers use it for trees of 60. Others save it for trees of several hundred. When a label gives an age, ask how it was worked out.
Why are old tea trees supposed to make better tea?
Because the tree is different, and puerh shows the leaf plainly. The large-leaf trees of Yunnan grow a single trunk with roots that go down rather than out. Left alone for a century or more, those roots reach deep for water and minerals, and the tree grows slowly. The leaf tends to be thicker and more concentrated. Plantation bushes are clones, pruned hard and often fertilised, and typically live only 30 to 50 years.
Drinkers report old-tree tea as thicker in the mouth, with a sweetness that returns in the throat after you swallow, a bitterness that clears within seconds rather than lingering, and many more good infusions. Sheng puerh is an unforgiving style for this reason. The processing is simple and the tea is often drunk young, so poor leaf has nowhere to hide.
How is a tea tree's age worked out?
It is estimated, not measured. No one cuts down a valuable tea tree to count its rings. Ages come from trunk girth, height, village records and family memory, and girth depends on soil, altitude and pruning as much as years. The most famous trees in Yunnan are claimed to be somewhere between 3,000 and 3,500 years old, depending on who is counting. Those are estimates too.
Most tea trees do not live that long. Pests, storms and dry years kill the majority within a century or so. The trees that survive for many centuries are a small minority. Famous old gardens are also mixed. Jingmai, for example, has some of the largest old tea gardens in Yunnan, but many of the trees in them were planted far more recently than the garden's name suggests. A garden can be ancient without every tree in it being old.
Why do so many puerh cakes say gushu?
Price. Sheng puerh is valued by the reputation of its mountain or village, then by the kind of garden, then by the age of the trees. Fresh leaf from old trees in famous villages sells for hundreds of dollars a kilo, and from the most famous, thousands. Old trees also yield very little. A single big tree may give well under two kilos of fresh leaf at a picking, and fresh leaf loses most of its weight in processing.
So the real supply is small and the reward for the label is large. Common practices include blending plantation leaf into old-tree leaf and labelling the whole cake by its oldest part, using a famous village name for leaf from the next valley, and calling tall, unpruned plantation bushes old trees. None of this can be seen in a photograph. Some of it cannot be proven even with the cake in your hand.
Can you tell old tree puerh by taste?
Partly, with experience, and never with certainty. The signs are the ones drinkers report above: a thick, oily texture; bitterness that appears and then clears quickly into sweetness; a sweet, cooling feeling in the throat; and a long session of fifteen or twenty infusions. After brewing, look at the spent leaves. Old-tree leaf is usually thick, springy and whole, with sturdy stems. Plantation tea tends to be thinner, with astringency that lingers and a session that fades after five or six infusions.
These are tendencies. A well-made tea from younger trees in a good garden can show many of them. A poorly made old-tree tea can show few. Use price as a sanity check as well. A large cake with a famous village name and an ancient-tree label at an everyday price is almost certainly not what it says. Old-tree shou puerh is also rare. Piling takes away some of the leaf's character, and old-tree leaf is worth more sold as sheng, so most shou is made from plantation leaf. For how the two styles differ, see sheng vs shou puerh.
How should you read our labels?
The same way. Where our listings give a tree age, it is the age we were given, and we cannot verify it any better than you can. On our Qian Gu Ling Ya we say the buds come from trees believed to be over a thousand years old. Believed is the accurate word. What we can do is drink the tea across its vintages and tell you what we taste.
If you want to learn what old-garden leaf tastes like without spending much, start with our 2023 Jingmai, then compare it with any plantation cake you have. The rest of our range is in the sheng puerh collection, and once you own a few cakes, read how to store puerh and liu bao at home.
Buy a sample before a cake, and let the cup decide.