Tracing Indica Traits Back to the Terrain
Each quality that sells an indica seed has been bred there by a mountain. The squat stature, the fast flowering, the hard resinous buds, the wide dark leaf, the colour that comes in as the nights go cold: not one of these is an design. They are the answers a plant found through many thousands of years to a specific combination of problems, in great altitude, in a brief dry, cold 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 to this day the logic of the terrain. The lines referred to in what follows are drawn from the range at https://kushindicaseeds.com whose catalogue traces to Afghanistan, northern Pakistan and the Indian Himalaya; the argument though holds for any genuine indica from any seed catalogue. Reading the terrain turns out to be the quickest way to read the pack.
The Range
The Hindu Kush runs roughly eight hundred kilometres from central Afghanistan into northern Pakistan, with the wider indica zone extending across to the western Himalaya on one side and the deserts of the Afghan interior on the other. Cannabis has been cultivated there over centuries, mainly for hashish, which means chosen generation after generation by people who wanted a plant rather than anything else: something that could be sieved or sieved off a plant that had finished ahead of the autumn snow.
This is a different history to the one that produced the tropical sativas, where daylength barely vary and the plant was free to grow for most of a year. Everything that follows is a outcome of four conditions about the place: it is high, it is arid, the growing season is short, and the nights turn cold early. The order that they are discussed below does not matters; a plant experiences every one of them at once.
The Colour of a Cold Valley
High-valley nights fall below ten degrees long before the days follow, and a good number of indica lines react to the cold by making anthocyanin, the same pigment that turns autumn leaf purple. In the plant it appears as purple through the calyxes, fan leaves and occasionally the stem, which it does little for the smoker except look beautiful.
A point to taking from it is a matter of lineage, rather than cosmetic. The capacity to colour is carried from particular cold-valley populations, and a line that colours reliably in a cool final fortnight has the ancestry regardless of what the name says. Strains sold as “purple” that will only colour under extreme cold, or never really, usually have the colour in only the name and nothing of it in the genes. Chilling the room during the final weeks draws the colour out where it is present and does nothing at all where it is absent; it at the same time checks ripening, so it is a trade rather than a free effect.
The Short Season: Why It Flowers Fast
At two thousand metres the growing window is short, and the autumn arrives early and hard. A plant that took fourteen weeks to ripen from the days started to draw in never make seed in that terrain, so its genes dropped out of the population. The plant that stayed reacts sharply to shortening days and finishes in about seven to nine weeks after that cue.
In a tent that response is the single most frequently cited indica quality. Switch to twelve hours and the plant moves at once, stretches over a fortnight and fills flower over the rest of a short run. The fastest strains at Kush Indica Seeds finish at around 7 weeks after the flip, which permits five or six harvests a year from one space whereas a long sativa gives perhaps two. That difference is not cleverness on the breeder’s side; it is the first snow encoded into the plant’s own clock.
Resin as Sunscreen and Sealant
The old zone is arid: thin humidity, intense sun, little rainfall through the flowering season. A plant there has two problems which its resin answers together. It needs to protect its reproductive parts from UV light, and it needs to hold water inside the bud over weeks of dry wind. Trichomes do both: the heads block UV and the coating reduces water loss. Selection for hashish then drove the trait further, because resin was the crop.
Dense bud form goes with the same cause: a closely packed bud gives up less water than an airy one in arid air. In a tent these same qualities arrive together, and just one of them is always welcome. The resin is. The density turns into a risk the moment the air is humid: a bud shaped to retain water in a desert retains it equally well in a wet tent, and bud rot moves in a hard indica cola more quickly than in anything an equator has ever made. The quality that moves the seed is the same trait that needs a dehumidifier during the final three weeks.
The Low Frame
A good deal of the old growing zone lies from fifteen hundred and three thousand metres. Up at that height the air is thin, the ultraviolet exposure is heavy, the wind is relentless and every centimetre of stem over the soil costs resources the plant can ill spare. A tall plant in such terrain dries out more, breaks sooner and gets little for its extra height, because there is no canopy it needs to outgrow.
The plant that survived is low: short internodes, a strong dense main stem, branches held close, often wider than it is tall. In a tent that translates straight: a true indica seed gains maybe half its height again in flower whereas a sativa doubles, sits under a light at a modest distance and seldom requires tying at all. Growers short on little height choose indica for this trait, and it is the mountain, not the breeder, that they are relying on.
The Fat Leaf
The indica leaf is wide, heavy and a deep green, with only a few wide fingers whereas a sativa leaf has many narrow ones. Both things in the climate favour the broad shape. Thin air and intense sun mean an heavy light load per square centimetre, so a wide leaf catches enough and does not need much area; a big narrow-fingered leaf would simply burn. And constant wind tears fine leaves, while a stout, short-stalked leaf holds.
The deep colour is pigment loaded thickly into a thick leaf, which is one part of the same adaptation. For the tent the features matter in one everyday respect: a broad-leafed indica canopy shades everything below the top layer much more completely than a sativa’s, which means lower flowers on an unmanaged indica come in small and loose. Growers that strip a few large leaves in week three are reversing, a little, what the mountain put there over thousands of years.
Afghani, Mazar, Chitral, Hindu Kush
Most indica pack names are the names of places or derive from them, and the names are far more useful than they look. “Afghani” usually refers to a population out of the north of Afghanistan, and the classic squat, hash-plant, fast-finishing form. “Hindu Kush” in a listing refers to the high mountains proper and frequently to material collected on the eastern side. “Chitral” or “Mazar” name specific valleys with their own recognisable forms, the former often colouring and the latter large and late for an indica. Kush Indica Seeds lists the collection area for every pack whenever it is documented, which turns the name from from a brand into a datum the grower can use.
Most indica packs on sale are worked material many generations from the valley, selected for uniformity rather than to preserve the spread a true landrace carries; a buyer who wants the population itself needs to shop for packs labelled as pure landrace stock and accept the variation which come with the label.
Where the Adaptations Turn Against You
Every adaptation described above was an answer to a pressure which a tent no longer present, and a solution that has lost its problem does either of two things: it becomes a free bonus or it becomes a hazard. The speed and the low frame are advantages, because nothing in a tent punishes a plant for them. The density and the broad canopy are costs, because the arid air that made sense of them is absent and the still air of a sealed room does exactly the opposite effect.
That is why the indica cycle succeeds or goes wrong in one variable far more than any other: humidity during the last few weeks. A grower who holds it down gets the hard, resinous, early harvest the mountain built; one that lets it rise gets mould inside the thickest colas, which is the the plant was arranged hardest to hold water in. Indoors, the mountain has to be reconstructed in the final fortnight: cool, dry, with moving air. Everything else about growing indica is easy exactly since the plant was bred to survive a place much harder.
Kush on the Label
The word that gave the mountains its name has moved further from it than any term in cannabis. “Kush” in a current pack listing can mean a true Hindu Kush reproduction, a West Coast hybrid carrying one Kush ancestor, or a line named Kush because the seller liked the sound would sell. The OG Kush line, which accounts for most of the use of the word in the market, is probably as much sativa-influenced than a good deal of the stock it takes the name from, while its growth habit, finishing time and leaf show as much much.
A practical rule is the one which applies throughout this page: ignore the word and go back to the terrain. A listing that gives a low stretch, a flowering time under nine weeks, a dense flower and a broad leaf is describing a mountain plant regardless of what it is named; one that gives a lanky habit, eleven weeks and airy buds is describing a plant from somewhere else wearing a mountain name. The seed remembers the place it was shaped by; the label frequently does not.
