Every quality that moves an indica seed has been put there by a mountain. The squat stature, the seven-to-nine-week flowering, the dense resinous flowers, the wide blue-green leaf, the colour that comes in as the nights go cold: not one of them is an invention. They are the solutions a population arrived at through many thousands of years to a specific combination of pressures, at great altitude, in a brief dry season, across the valleys of the Hindu Kush and the mountains beyond it. Breeders carried that solution off the mountain and refined it, yet the shape of the plant is still the logic of the terrain. The lines referred to below are drawn 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 shop catalogue. Reading the terrain turns out to be the most reliable way to read the pack.
The Range
The Hindu Kush stretches for about eight hundred kilometres from the middle of Afghanistan into northern Pakistan, with the broader indica homeland spilling over to the Indian Himalaya on one side and the lowlands around the Afghan plateau on the other. Cannabis has been cultivated there for a very long time, mainly for hashish, which means chosen year by year by farmers who needed resin above anything else: something that could be sieved or sieved off a plant that had ripened ahead of the first snow.
That is a different selection to the one that shaped the tropical sativas, where seasons hardly change and the plant could flower for half a year. Everything that follows is a outcome of four facts about the terrain: it is high, it is dry, the growing season is short, and the nights go cold fast. The order that they are discussed here hardly matters; a plant experiences every one of them at once.
The Short Season: Why It Flowers Fast
Above two thousand metres the growing season is brief, while the autumn comes quickly and comes hard. A plant that needed fourteen weeks to finish after the days began to shorten did not set seed in that terrain, and its genes dropped out of the population. The plant that stayed reacts fast to shortening days and finishes in about seven to nine weeks from the signal.
In a tent that reflex is the single most frequently cited indica trait. Flip to twelve hours and the plant commits at once, grows for a couple of weeks and stacks flower for the remainder of a brief run. The quickest lines at Kush Indica Seeds finish in about 7 weeks from the flip, which permits five or six cycles a year out of one room whereas a long sativa allows perhaps two. That difference is no cleverness on the breeder’s part; it is the first snow written into the plant’s own clock.
Altitude: Why the Plant Is Short
A good deal of the traditional growing land sits between fifteen hundred and three metres. At at that height the air is thin, the ultraviolet load is intense, the wind is relentless and each centimetre of stem above the soil costs resources the plant can ill spare. A tall plant on that ground loses faster, breaks sooner and gets nothing for its height, since there is no canopy it needs to clear.
The population which survived is low: short internodes, a strong thick main stem, branches held close, often broader than it is tall. In a tent that translates straight: a true indica line gains maybe half its height over in flower whereas a sativa doubles, fits under a light with a modest gap and seldom needs training down. Anyone with limited headroom buy indica for precisely this reason, and it is the mountain, not the breeder, that those growers are thanking.
Anthocyanin and the Autumn
High-valley nights fall under ten degrees weeks before the afternoons follow, and a good number of indica populations respond to the cold by making anthocyanin, the same compound that turns a maple leaf purple. In the plant it shows as purple in the calyxes, leaves and occasionally the stem, and it does little for the grower beyond look beautiful.
The thing to taking from it is genetic, rather than decorative. The capacity to colour is carried out of specific cold-valley stock, and a strain that purples reliably with a cold last fortnight carries the ancestry regardless of what the label claims. Strains marketed as “purple” that only colour under extreme cold, or not at all, typically have a word in only the name and nothing of it not in the genes. Chilling the room in the last weeks brings the colour out if it exists and achieves nothing at all if it is absent; it at the same time checks the finish, so it is a bargain and not a free effect.
Wind and Sun: Why the Leaf Is Broad and Dark
The indica leaf is broad, thick and a deep green, and few broad fingers whereas a sativa fan leaf carries many thin ones. Two things about the terrain favour the broad shape. High-altitude air and hard sun put an high photon load per square centimetre, and a broad leaf gathers plenty and does not need needing a lot of surface; a large thin leaf in that light just burn. And constant wind tears fine leaves, while a thick, short-petioled leaf stays put.
The dark colour is pigment packed thickly into a heavy leaf, which is one part of the same adaptation. For the tent these features matter in one everyday respect: a broad-leafed indica canopy shades everything beneath the top tier much more thoroughly than a sativa’s, which means the lower flowers on an untrained indica finish in small and weak. People that remove a few fan leaves at week three are reversing, a little, what the range did over many thousands of years.
Dry Air: Why the Buds Are Dense and Resinous
The old homeland is dry: low humidity, hard sun, little rain through the flowering summer. A plant in such a place has two problems which its resin solves together. It needs to shield its reproductive tissue from ultraviolet light, and it must hold moisture inside the flower through a long stretch of desiccating wind. A heavy coat of trichomes does both: the resin heads block UV and their coating reduces moisture loss. Selection for hashish then pushed the trait further, since resin was always the product.
Dense flower structure goes with the same story: a closely packed bud loses less water than an open one in dry air. In a tent those same qualities come together, but just one of them is unconditionally welcome. The resin is. The density turns into a risk the moment the room is damp: a bud built to retain water in a desert holds it equally well in a damp tent, and bud rot spreads in a dense indica cola faster than in any flower the equator ever made. The trait that moves the seed is the same trait that calls for a drier room during the last few weeks.
Afghani, Mazar, Chitral, Hindu Kush
Most indica pack names carry the names of places or derive from them, and the names are far more useful than most buyers look. “Afghani” usually means stock out of the Mazar-i-Sharif region, and a classic squat, hash-plant, fast-finishing type. “Hindu Kush” on a listing points to the high mountains proper and frequently to material collected on the Pakistani side. “Chitral” and “Mazar” name particular valleys that have their own recognisable types, the first frequently purpling and the second heavy and slower for an indica. Kush Indica Seeds gives the origin region for every line whenever it is documented, and that turns the name from a flavour into a fact the grower can use.
Most indica packs on sale is worked material many generations removed from the original collection, bred for uniformity and not for the variation a true landrace holds; a buyer that is after the spread has to look for lines described as unselected reproductions and accept the surprises which come with them.
Where the Adaptations Turn Against You
Each adaptation discussed above was a solution to the condition that a tent no longer present, and any solution without its problem does either of two ways: it turns into a cost-free bonus or it turns into a cost. The speed and the low frame are advantages, since no condition in a room penalises a plant for them. The density and the heavy canopy are costs, because the arid air that made sense of them is gone and the damp atmosphere of a sealed room does precisely the opposite effect.
That is why an indica grow goes well or fails on a single factor more than any other: humidity in the last three weeks. A person that holds it low is rewarded with the dense, frosted, early flower the mountain bred; one that lets it rise is punished with rot in the thickest colas, which is exactly where the plant was trying hardest to keep water in. In a room, the mountain is to be reconstructed for the last fortnight: cool, dry, moving air. Everything else about running indica is easy exactly because the plant was bred to survive a place hard.
The Drift of a Word
The word that lent the mountains its name has since travelled a long way from it than any other in cannabis. “Kush” on a current pack name can refer to an true Hindu Kush reproduction, a Californian Coast hybrid with one Afghan grandparent, or a line called Kush because the seller thought the sound would sell. A famous OG Kush family, and this dominates the appearances of the word in the market, is probably as much sativa-influenced than a good deal of the stock it borrows the word from, and its stretch, finishing time and leaf shape say as much.
The practical reading is the same one that applies throughout this article: look past the word and read the terrain. A listing which states a low stretch, a finishing time under nine weeks, a hard bud and a broad leaf is describing a mountain plant regardless of what it is named; one that states a tall frame, eleven weeks and open flowers is selling something somewhere else with a borrowed name. The seed carries the place it was shaped by; the name frequently has forgotten.