Indica Seeds: Every Trait Has an Altitude
Every quality that sells an indica seed has been bred there by a mountain. The squat frame, the fast flowering, the dense resinous flowers, the wide blue-green leaf, the colour that appears when the nights turn cold: none of them is an invention. They are the solutions a plant arrived at through many thousands of years to a specific combination of problems, in high altitude, in a brief dry summer, across the slopes of the Hindu Kush and the ranges around it. Breeders took that solution down the mountain and refined it, but the shape of the plant is still the shape of the terrain. The lines pointed to below come from the range at https://kushindicaseeds.com whose stock goes back to Afghanistan, northern Pakistan and the Indian Himalaya; the account itself holds to any genuine indica out of any seed catalogue. Reading the terrain is the quickest way to understand the pack.
The Range
The Hindu Kush runs for about eight hundred kilometres out of central Afghanistan towards northern Pakistan, with the wider indica homeland spilling across to the western Himalaya on one side and the lowlands of the Afghan interior to the other. The plant has been cultivated there over a very long time, mainly for hashish, and selected year after year by farmers who wanted resin above anything else: resin that could be sieved and pressed off a plant that would have finished ahead of the autumn snow.
This is a separate history to the one that shaped the equatorial sativas, in which seasons hardly vary and the plant could flower for half a year. Everything that follows is a outcome of a handful of facts about the place: it is high, it is arid, its growing season is short, and the nights turn cold fast. The order that they are taken below hardly matter; a plant meets every one of them in the same once.
Cold Nights: Why Some Go Purple
Mountain nights drop below ten degrees weeks before the afternoons do, and a good number of indica lines respond to that cold by producing anthocyanin, the same compound that turns a maple leaves purple. In the plant it appears as purple through the bracts, leaves and sometimes the stem, which it offers nothing for the grower except looking beautiful.
The point worth take from the colour is genetic, rather than cosmetic. The tendency to colour is inherited from specific cold-valley populations, and a strain that purples every time in a cool last fortnight has the origin whatever the label claims. Lines marketed as “purple” that will only turn with extreme cold, or not at all, usually carry a colour in the name and in the plant. Chilling the room during the last weeks brings the colour out if it is present and does nothing if it does not; it also checks ripening, so it is a trade and not a free trick.
Seven Weeks Before the Snow
At two thousand metres the frost-free season is short, while the autumn comes early and hard. A plant which needed fourteen weeks to finish after the days started to shorten did not set seed on such terrain, so its genes dropped out of the population. The plant that stayed reacts sharply to shortening days and ripens in about seven to nine weeks from the signal.
Indoors that reflex is the one most valued indica trait. Switch to twelve hours and the plant commits at once, grows over a couple of weeks and stacks flower for the remainder of a brief run. The fastest strains at Kush Indica Seeds finish at about 7 weeks after the flip, which allows five or six cycles a year out of one space where a long sativa allows two. This difference is no cleverness on the breeder’s side; it is the snowline encoded into the plant’s calendar.
Wind and Sun: Why the Leaf Is Broad and Dark
An indica fan leaf is broad, heavy and a deep green, and few broad lobes whereas a sativa leaf has many thin ones. Both pressures in the terrain favour that shape. High-altitude air and hard sun mean a heavy light dose on each square centimetre, so a wide leaf gathers plenty and does not need needing much surface; a big thin leaf would simply burn. And steady wind tears thin foliage, whereas a thick, short-stalked leaf holds.
The deep colour is chlorophyll loaded thickly into a thick leaf, which is one part of the same adaptation. For the grower the leaves matter in one practical way: a dense indica canopy blocks light from all growth beneath the top layer much more thoroughly than a sativa’s, which means the lower flowers of an unmanaged indica come in small and weak. Growers that remove a few few large leaves at mid-flower are reversing, carefully, what the mountain did over thousands of years.
The Low Frame
Much of the old growing zone lies between a thousand five hundred and three thousand thousand metres. At at that height the air is thin, the UV exposure is intense, the wind is constant and each centimetre of stem above the ground costs water the plant can ill spare. A tall plant in that ground dries out faster, snaps more and gains little for the extra height, because there is no canopy it needs to outgrow.
The plant which survived is compact: tight internodes, a single dense main stem, side branches kept close, often broader than it is tall. In a tent that carries over directly: a pure indica line gains maybe half its height again in flower where a sativa doubles, fits under a light at a short gap and rarely requires tying at all. Anyone with little headroom choose indica for this reason, and it is the mountain, not the breeder, that those growers are relying on.
Dry Air: Why the Buds Are Dense and Resinous
The traditional homeland is arid: low humidity, intense sun, little rainfall through the flowering summer. A plant in such a place has two problems that resin solves together. It must protect its flowering parts from ultraviolet light, and it needs to keep water inside the flower through weeks of desiccating wind. A heavy coat of trichomes do both: their heads absorb the ultraviolet and their waxy layer slows water loss. Selection for hashish on top of that pushed the resin even harder, because resin was the crop.
Tight flower structure belongs with the same cause: a closely clustered bud loses less water than an open one in dry air. In a tent these same traits come together, but just one of them is unconditionally welcome. The resin is. The density turns into a risk the instant the air is humid: a bud shaped to hold water in a desert holds it just well in a damp tent, and bud rot spreads in a hard indica cola more quickly than in any flower an equator has ever produced. The trait that moves the seed is the one that needs a dehumidifier in the last three weeks.
Reading the Place Names
Most indica seed labels carry the names of names or derive from them, and the names are more informative than most buyers look. “Afghani” usually means a population from the Mazar-i-Sharif of Afghanistan, which is the classic short, resinous, early-finishing form. “Hindu Kush” in a name points to the central range proper and frequently to stock collected on the eastern side. “Chitral” and “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 origin region for every pack where it is known, and that makes the name from from a flavour into a datum the grower can use.
Most indica seed on sale is worked material many generations from the original collection, bred for consistency rather than for the variation of a true landrace carries; a buyer who is after the spread needs to look for lines labelled as pure reproductions and expect the variation which arrive with them.
What Changes in a Tent
Each adaptation discussed above was an answer to a pressure which a tent no longer present, and a solution that has lost its pressure behaves one of two things: it turns into a cost-free bonus or it turns into a hazard. The fast finish and the short frame become bonuses, because nothing in a tent penalises a plant for them. The density and the heavy leaf become costs, because the dry air that justified them is absent and the still atmosphere of a closed room does precisely the reverse effect.
That is why the indica cycle succeeds or fails in a single variable more than on any other: humidity during the last three weeks. A grower who holds it down gets the hard, frosted, early flower the mountain built; one that lets it rise is punished with mould in the best colas, where the the plant was arranged the plant to hold moisture in. In a room, the mountain has to be reconstructed in the final two weeks: cool, dry, moving air. Everything else about running indica is forgiving exactly because the population was bred for somewhere much harder.
Kush on the Label
The word that gave the mountains its name has since moved a long way from it than almost any other in cannabis. “Kush” on a modern seed name may refer to a unselected Hindu Kush reproduction, a West Coast hybrid carrying one Afghan grandparent, or a line called Kush because the seller thought the sound of it. A 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 plants it takes the name from, and its stretch, flowering time and leaf shape show as much much.
A usable reading is the same one which holds across this page: look past the word and go back to the terrain. A listing which states an low stretch, a flowering time under nine weeks, a dense bud and a broad leaf is selling a mountain plant whatever it is called; one that states a lanky frame, eleven weeks and open flowers is describing a plant from somewhere else with a borrowed name. The seed carries where it was shaped from; the label frequently has forgotten.