Every trait that moves an indica seed was put there by a range of mountains. The short frame, the seven-to-nine-week flowering, the hard resinous flowers, the wide blue-green leaf, the colour that comes in as the nights go cold: none of them is a breeder’s design. They are the solutions a plant arrived at over thousands of years to a particular combination of problems, at high altitude, in a brief dry, cold season, on the valleys of the Hindu Kush and the mountains beyond it. Breeders took that solution down the mountain and polished it, yet the logic of the plant is still the shape of the place. The lines referred to below come from the range at https://kushindicaseeds.com and its catalogue goes back to Afghanistan, northern Pakistan and the Indian Himalaya; the argument though holds for any genuine indica out of any seed bank. Knowing the terrain turns out to be the quickest way to read the pack.
The Range
The Hindu Kush stretches for about eight hundred kilometres out of the middle of Afghanistan towards northern Pakistan, with the broader indica homeland extending over to the Indian Himalaya to one side and the deserts around the Central Asian plateau to the other. Cannabis has been cultivated there for a very long time, mainly for hashish, which means selected year after year by farmers who needed a plant above any other quality else: something that could be sieved or sieved from a plant that had ripened ahead of the autumn snow.
That is a different history to the one that shaped the tropical sativas, where daylength barely vary and the plant was free to flower for most of a year. Everything that comes below is the consequence of four facts about the place: it is high, it is dry, its summer is short, and its nights turn cold early. The sequence in which they are discussed below hardly matters; a plant experiences every one of them at once.
Dry Air: Why the Buds Are Dense and Resinous
The old homeland is arid: thin humidity, hard sun, little rainfall through the flowering season. A plant in such a place has two problems that its resin solves together. It needs to protect its flowering parts from ultraviolet light, and it must hold water inside the flower through a long stretch of dry wind. Trichomes do both: their heads absorb UV and their waxy layer reduces water loss. Farmers for hashish on top of that pushed the resin even harder, because resin was always the product.
Tight flower form goes with the same story: a closely clustered bud loses less water than an airy one in arid air. In a tent those same qualities arrive as a pair, but just one of them is always an advantage. The resin is. The density turns into a risk the moment the room is damp: a bud built to retain water in a desert retains it equally as well in a wet tent, and botrytis moves in a dense indica cola faster than through any flower the equator has ever made. The trait that moves the seed is the same trait that needs a drier room in the final few weeks.
Anthocyanin and the Autumn
Mountain nights drop under ten degrees long before the afternoons do, and a good number of indica lines respond to the cold by making anthocyanin, the same compound that colours autumn leaves purple. In the plant it appears as purple through the bracts, leaves and occasionally the stem, and it does nothing for the smoker beyond look beautiful.
A point to take from it is genetic, rather than cosmetic. The capacity to colour is carried out of particular cold-valley populations, and a strain that purples every time with a cool last fortnight carries that ancestry whatever the name claims. Lines marketed as “purple” that only turn under heavy cold, or not at all, usually have a word in the name and in the genes. Chilling the room in the final weeks draws the colour forward where it exists and achieves nothing if it does not; it also checks the finish, so it is a bargain and not a costless effect.
Seven Weeks Before the Snow
At two thousand metres the frost-free window is brief, while the autumn comes quickly and hard. A plant that took fourteen weeks to ripen from the days began to shorten never set seed in such terrain, and the genes left the population. What stayed responds sharply to shortening days and finishes in roughly seven to nine weeks from the signal.
In a tent that response is the one most frequently valued indica trait. Flip to twelve hours and the plant commits at once, stretches over a couple of weeks and fills flower for the rest of a short run. The fastest strains at Kush Indica Seeds come in at around 7 weeks from the switch, and that permits as many as five or six cycles a year from one space where a classic sativa gives perhaps two. This speed is not cleverness on the breeder’s side; it is the first snow encoded into the plant’s own calendar.
The Fat Leaf
An indica leaf is wide, heavy and a deep green, with few broad fingers where a sativa fan leaf has many thin ones. Both pressures about the climate select for the broad shape. High-altitude air and intense sun put an heavy light dose per square centimetre, and a broad leaf gathers enough and does not need much area; a big thin leaf in that light just scorch. And steady wind shreds fine leaves, whereas a thick, short-stalked leaf stays put.
The deep colour is chlorophyll packed thickly in a heavy leaf, which is one part of the same answer. For the grower these features count in one everyday respect: a broad-leafed indica canopy shades all growth below the top tier much more completely than a sativa’s, which means lower flowers of an untrained indica come in airy and loose. People who remove a fan leaves at mid-flower are reversing, carefully, what the mountain put there for thousands of years.
The Low Frame
A good deal of the old growing zone sits between a thousand five hundred and three thousand metres. Up at that height the air is thin, the ultraviolet exposure is heavy, the wind is constant and each centimetre of stem over the soil costs resources the plant cannot spare. A tall plant on that terrain loses faster, snaps more and gains nothing for its height, since there is no canopy to clear.
The population which survived is low: short internodes, a single thick central stem, side branches held close, frequently wider than it is tall. In a tent that translates straight: a true indica seed gains perhaps half its height again in flower where a sativa doubles, sits beneath a lamp with a modest short distance and rarely needs training down. Growers short on little height choose indica for precisely this reason, and it is the mountain, not the breeder, that they are relying on.
Reading the Place Names
Most indica seed names carry the names of places or descend from one, and the names are far more informative than most buyers realise. “Afghani” usually means stock from the Mazar-i-Sharif of Afghanistan, which is a classic short, resinous, early-finishing type. “Hindu Kush” on a listing points to the central mountains proper and often to material taken on the Pakistani side. “Chitral” and “Mazar” name particular valleys with their own local forms, the former frequently colouring and the second heavy and late for an indica. Kush Indica Seeds gives the origin region on each line whenever it is documented, and that turns the name from from a flavour to a datum the grower can plan around.
Almost all indica seed on sale is worked stock many generations removed from the original collection, selected for uniformity rather than for the variation of a true landrace carries; a buyer that wants the population itself has to shop for packs described as unselected landrace stock and expect the surprises that arrive with them.
Taking the Plant Off the Mountain
Each trait described above was a solution to a pressure that a tent does not present, and any solution that has lost its problem behaves either of two ways: it turns into a free advantage or it becomes a cost. The fast finish and the low frame become bonuses, since no condition in a tent punishes them. The density and the heavy leaf become costs, because the dry air that justified them is absent and the damp air of a sealed room does exactly the opposite influence.
That is why an indica grow goes well or fails on a single variable more than any other: humidity in the last few weeks. A grower who holds it down is rewarded with the hard, frosted, fast flower the mountain bred; one that does not is punished with rot in the thickest colas, which is the the mountain was arranged the plant to hold moisture in. Indoors, the terrain is to be reconstructed in the last two weeks: cool, dry, with moving air. All else about growing indica is easy exactly since the plant was selected to survive somewhere much harder.
Kush on the Label
The word that lent the range its name has moved further from it than any term in cannabis. “Kush” in a modern pack listing may mean an unselected Hindu Kush reproduction, a West Coast hybrid with one Afghan grandparent, or a strain named Kush because the seller thought the sound of it. The OG Kush line, which accounts for most of the use of the word in the market, is probably more sativa-influenced than a good deal of the stock it borrows the word from, while its growth habit, finishing time and leaf show as.
A usable rule is the same one which holds throughout this article: look past the word and go back to the terrain. A listing that gives an low stretch, a finishing time under nine weeks, a hard bud and a broad leaf is describing a mountain plant whatever it is called; one that gives a tall frame, eleven weeks and airy flowers is describing something else with a mountain name. The seed carries where it was shaped from; the name often has forgotten.
