What Are Tea Cultivars? (The Darjeeling Edition)

A cultivar is a cultivated variety of a plant, selected because it reliably produces something desirable, like better flavour, a higher yield, or resistance to cold and disease, and then propagated to preserve those traits. In tea, choosing the right cultivar is what separates a field that performs the same way every season from one that surprises you every year.

In Darjeeling, cultivar names almost always refer to the estate where the plant was first identified. AV2, for example, stands for Ambari Vegetative 2: the Ambari estate, and “vegetative” because the plant is grown from cuttings of the original bush.

The two parent plants

All tea comes from Camellia sinensis, but the species has two distinct varieties, and they produce very different results.

The China variety, var. sinensis, is the high-altitude parent. It’s a small-leafed, slow-growing plant that handles the cold well, and it gives delicate, aromatic tea, though at a lower yield.

The Assam variety, var. assamica, is the lowland parent. It has large leaves, grows fast and tolerates heat, and it gives strong, malty tea at a high yield.

The British planted China sinensis seeds in Darjeeling from 1841, because that variety could handle the altitude and the cold. Over more than a century of cultivation, those plants crossed with Assam varieties, sometimes deliberately and sometimes by accident, which is why virtually every major Darjeeling cultivar today is a hybrid of the two.

The famous tea cultivars of Darjeeling

The Tea Research Association has registered around 30 cultivars suited to Darjeeling, and a handful of them dominate the conversation.

What is a single-cultivar tea?

A single-cultivar tea is made only from the leaves of one cultivar. Because each cultivar is grown from cuttings, every bush in that plot is a clone of the same original plant, so what you taste in the cup is that one plant, grown in one place, in one season.

Most Darjeeling tea is different. It comes from fields where several cultivars grow side by side, or from fields grown from seed, where every bush is genetically its own plant, so the leaf is already a mix before it’s picked. When a tea is made from a few named cultivars together, like T78 and AV2, you’ll often see it called mixed clonal.

Why single-cultivar tea is rare here

Most Darjeeling tea, from big estates and small farmers alike, comes from more than one plant, and the reason is simple: most gardens were planted from seed. Tea plants cross-pollinate, so every seed grows into a genetically distinct bush, and a seed-planted field holds dozens of different plants growing side by side. The tea made from that field is a blend before it ever enters the factory, by design and by history.

A seed-planted field is a population, and the tea it produces is its portrait.

Getting hold of clonal plants is also a real barrier. Establishing a plot of AV2 or B157 takes nursery cuttings, the infrastructure to root and grow them, and years of waiting before the plot produces anything you can sell. Most small farmers don’t have that access, and the mixed fields they work were passed down to them, so they never got to choose what grows there.

That’s why genuinely single-cultivar teas from Darjeeling are so rare. When you do find one, you get to taste one plant on its own, and with it the precision and patience it took to grow that plant separately, in a region that has always grown its tea mixed.