Each quality that moves an indica seed has been bred there by a mountain. The squat frame, the fast flowering, the hard resinous buds, the broad blue-green leaf, the colour that comes in when the nights go cold: none of these is a breeder’s invention. They are the solutions a plant arrived at over thousands of years to a specific combination of problems, in high altitude, in a brief dry season, on the slopes of the Hindu Kush and the ranges beyond it. Breeders took that answer down the mountain and polished it, yet the shape of the plant is still the shape of the terrain. The examples referred to in what follows are drawn from the range at https://kushindicaseeds.com whose stock traces to Afghanistan, northern Pakistan and the Indian Himalaya; the argument though applies to any genuine indica out of any seed bank. Reading the terrain turns out to be the most reliable way to understand the pack.
A Dry Corner of Central Asia
The Hindu Kush runs for about eight hundred kilometres out of central Afghanistan towards northern Pakistan, and the wider indica zone extending across to the Indian Himalaya to one side and the deserts around the Central Asian plateau to the other. The plant has been grown there over centuries, chiefly for hashish, and selected year by generation by people who wanted a plant rather than any other quality else: resin that could be sieved and sieved from a plant that would have ripened before the autumn snow.
This is a separate selection to the one that shaped the tropical sativas, where seasons hardly vary and the plant was free to flower for most of a year. Everything that follows is the outcome of a handful of facts about the place: it is high, it is dry, its summer is short, and its nights go cold early. The sequence in which they are discussed here does not matter; a plant experiences all of them at season.
The Low Frame
A good deal of the traditional growing land sits between fifteen hundred and three thousand thousand metres. At that height the air is thin, the UV load is heavy, the wind is constant and every centimetre of stem over the soil costs resources the plant cannot spare. A tall plant on that terrain dries out faster, snaps more and gets little for the extra height, because there is no canopy to clear.
The population that survived is compact: tight internodes, a strong thick central stem, branches kept close, often broader than it is tall. In a tent that translates straight: a pure indica seed gains perhaps half its height again through flower where a sativa doubles, sits under a lamp at a short distance and rarely requires tying at all. Anyone with little headroom buy indica for precisely this reason, and it is the mountain, not the breeder, that they are relying on.
Finishing Before the Frost
Above two thousand metres the growing season is short, and the autumn arrives quickly and hard. A plant that took fourteen weeks to ripen from the days began to shorten did not set seed on such terrain, so its genes left the population. The plant that stayed reacts fast to shortening days and ripens in roughly seven to nine weeks from that cue.
Indoors that reflex is the one most cited indica quality. Switch to twelve hours and the plant moves at once, grows over a fortnight and stacks flower for the remainder of a brief run. The quickest strains at Kush Indica Seeds come in in about 7 weeks from the switch, and that permits as many as five or six cycles a year from one space whereas a classic sativa gives two. That speed is not cleverness on the breeder’s part; it is the first snow written into the plant’s own clock.
The Colour of a Cold Valley
Mountain nights drop under ten degrees long before the days follow, and many indica populations respond to that chill by making anthocyanin, the same pigment that turns autumn leaves purple. In the plant it appears as purple through the bracts, leaves and sometimes the stem, which it offers nothing for the grower beyond look beautiful.
The point worth taking from the colour is a matter of lineage, rather than cosmetic. The capacity to turn is carried from specific cold-valley populations, and a strain that purples every time in a cold final fortnight has that origin whatever the name says. Strains sold as “purple” that only turn with extreme cold, or not really, usually have the word in only the name and not in the genes. Chilling the room in the last weeks brings the colour forward if it is present and achieves nothing at all if it is absent; it at the same time slows the finish, so it is a bargain and not a free effect.
Wind and Sun: Why the Leaf Is Broad and Dark
The indica fan leaf is broad, thick and dark, and only a few wide fingers where a sativa fan leaf carries more thin ones. Two pressures about the climate select for the broad form. Thin air and hard sun put an heavy light dose per square centimetre, so a wide leaf gathers enough without a lot of surface; a big thin leaf would just scorch. And constant wind tears thin leaves, while a thick, short-stalked leaf stays put.
The dark colour is chlorophyll loaded thickly in a heavy leaf, which is part of the same adaptation. To the grower these leaves matter in a single practical way: a broad-leafed indica canopy shades everything below the top tier far more thoroughly than a sativa’s, so the lower flowers on an unmanaged indica come in small and weak. People that strip a few large leaves in mid-flower are undoing, carefully, something the mountain put there over many thousands of years.
Built for a Desert Autumn
The old homeland is arid: low humidity, intense sun, rare rain through the late season. A plant in such a place has two pressures which resin solves together. It needs to shield its reproductive parts from UV light, and it must hold water inside the bud over weeks of desiccating wind. A heavy coat of trichomes do both: their heads absorb the ultraviolet and their waxy layer slows moisture loss. Farmers for hashish on top of that pushed the resin even harder, since resin was always the crop.
Dense bud form goes with the same story: a tightly clustered bud gives up less water than an open one in arid air. In a tent those same traits arrive as a pair, but just one of them is unconditionally an advantage. The resin is. The density becomes a liability the moment the air is humid: a bud shaped to retain water in a desert retains it just as well in a wet tent, and bud rot spreads in a hard indica cola more quickly than in any flower an equator ever made. The quality that sells the seed is the one that calls for a drier room during the last three weeks.
Afghani, Mazar, Chitral, Hindu Kush
Most indica seed names are the names of places or derive from one, and the places are far more informative than they realise. “Afghani” usually refers to a population out of the north of Afghanistan, which is the classic squat, hash-plant, fast-finishing type. “Hindu Kush” in a name refers to the high range proper and often to material taken on the eastern side. “Chitral” or “Mazar” name specific valleys that have their own local types, the first frequently colouring and the latter large and late for an indica. Kush Indica Seeds lists the collection region on every line where it is documented, and that makes the name from a flavour to a datum the grower can use.
Almost all indica packs on sale is hybrid stock several generations removed from the original collection, selected for uniformity rather than for the spread a pure landrace holds; a buyer who wants the population itself has to look for lines labelled as unselected landrace stock and expect the surprises which come with the label.
Taking the Plant Off the Mountain
Every trait described above was an answer to the condition which a tent no longer present, and a solution that has lost its problem does one of two things: it turns into a free advantage or it turns into a hazard. The speed and the short stature are advantages, since no condition in a room punishes them. The density and the heavy leaf are costs, since the dry wind that justified them is gone and the still air of a closed room has exactly the reverse effect.
This is why the indica grow goes well or fails on a single factor more than any other: humidity in the last few weeks. A grower that keeps it low gets the hard, frosted, early flower the mountain bred; one who does not gets rot inside the best colas, which is the the mountain was arranged the plant to hold water in. Indoors, the mountain is to be reconstructed in the last two weeks: cool, dry, moving air. All else about growing indica is easy exactly since the population was selected to survive somewhere much harder.
What “Kush” Means Now
The word that lent the mountains its name has travelled further from it than almost any other in cannabis. “Kush” on a current pack name may refer to an unselected Hindu Kush landrace, a West Coast hybrid carrying one Afghan grandparent, or a line named Kush since the seller liked the sound would sell. A OG Kush family, and this dominates the use of the word in the market, is most likely as much sativa-leaning than a good deal of the stock it takes the name from, and its stretch, flowering time and leaf shape say as.
The usable rule is the same one that holds throughout this article: ignore the word and go back to the terrain. A listing that gives a modest stretch, a flowering time under nine weeks, a dense flower and a broad leaf is selling a mountain plant whatever it is named; one that states a tall habit, twelve weeks and airy buds is selling a plant from somewhere else with a mountain name. The seed remembers the place it came by; the name often does not.
