Every quality that moves an indica seed has been bred there by a range of mountains. The squat stature, the fast flowering, the hard frosted buds, the wide dark leaf, the colour that comes in as the nights go cold: not one of them is a breeder’s design. They are the answers a plant found over many thousands of years to a specific set of pressures, in great altitude, in a brief dry, cold season, across the slopes of the Hindu Kush and the mountains beyond it. Breeders carried that answer off the mountain and polished it, but the logic of the plant is still the logic of the terrain. The examples referred to in what follows are drawn from the range at https://kushindicaseeds.com and its stock traces to Afghanistan, northern Pakistan and the Indian Himalaya; the account though applies for any genuine indica out of any seed catalogue. Knowing the terrain is the most reliable way to understand the pack.
The Range
The Hindu Kush runs for about eight hundred kilometres from the middle of Afghanistan towards northern Pakistan, and the wider indica homeland extending over into the western Himalaya on one side and the deserts around the Central Asian plateau on the other. The plant has been grown there over a very long time, mainly for hashish, which means selected generation by year by farmers who needed resin above any other quality else: resin that could be rubbed and sieved from a plant that would have ripened before the autumn snow.
That is a different selection to the one that produced the tropical sativas, where daylength hardly change and the plant could grow for half a year. All that comes below is a consequence of four conditions about the terrain: it is high, it is arid, the summer is short, and the nights turn cold early. The order that they are discussed below does not matter; a plant meets every one of them in the same once.
Anthocyanin and the Autumn
Mountain nights fall below ten degrees weeks before the afternoons follow, and a good number of indica populations react to the chill by making anthocyanin, the same pigment that colours a maple leaf red. On the plant it shows as purple in the calyxes, fan leaves and sometimes the stem, and it does little for the grower except looking beautiful.
The thing to taking from the colour is a matter of lineage, not cosmetic. The tendency to turn is carried out of particular high-altitude stock, and a strain that purples reliably with a cold last two weeks has the origin regardless of what the name says. Strains marketed as “purple” that only colour under extreme cold, or not at all, usually have the colour in the name and in the genes. Chilling the room in the final weeks brings the colour out where it is present and achieves nothing at all if it is absent; it at the same time slows the finish, so it is a trade rather than a free effect.
Finishing Before the Frost
Above two thousand metres the frost-free season is short, and the autumn comes quickly and hard. A plant which took fourteen weeks to ripen from the days began to shorten did not set seed in such ground, and the genes left the population. The plant that remained responds sharply to shortening days and ripens in about seven to nine weeks after that cue.
In a tent that reflex is the single most frequently valued indica quality. Switch to twelve hours and the plant commits immediately, stretches over a couple of weeks and fills flower over the rest of a short cycle. The quickest lines at Kush Indica Seeds finish in around 7 weeks after the flip, which allows as many as five or six cycles a year out of one room whereas a classic sativa gives perhaps two. This difference is no cleverness on the breeder’s part; it is the snowline encoded into the plant’s own calendar.
Dry Air: Why the Buds Are Dense and Resinous
The old zone is dry: low humidity, intense sun, little rain in the late summer. A plant in such a place has two pressures which resin answers together. It needs to protect its reproductive tissue from UV exposure, and it needs to keep moisture in the bud over a long stretch of dry wind. A heavy coat of trichomes do both: the heads block UV and their coating slows moisture loss. Farmers for hashish on top of that pushed the resin further, since resin was the crop.
Tight bud form goes with the same story: a closely clustered bud gives up less water than an airy one in dry air. In a tent those two traits arrive as a pair, but only one of them is unconditionally welcome. The resin is. The density becomes a risk the instant the air is damp: a bud built to retain water in a desert retains it just as well in a wet room, and bud rot moves in a hard indica cola more quickly than through any flower an equator has ever made. The quality that sells the seed is the one that calls for a drier room in the final few weeks.
The Fat Leaf
The indica leaf is broad, heavy and dark, and only a few broad fingers whereas a sativa leaf carries more thin ones. Both pressures in the terrain favour the broad form. High-altitude air and intense sun mean an high light dose per square centimetre, so a broad leaf catches enough without a lot of area; a big narrow-fingered leaf would just burn. And steady wind tears fine foliage, whereas a thick, short-petioled leaf holds.
The deep colour is chlorophyll loaded thickly in a thick leaf, and part of the same adaptation. To the grower these features count in one everyday respect: a broad-leafed indica canopy blocks light from all growth below the top layer much more completely than a sativa’s, which means the lower buds of an unmanaged indica come in small and loose. People that remove a few large leaves at mid-flower are undoing, carefully, what the range put there over thousands of years.
The Low Frame
A good deal of the old growing land lies between fifteen hundred and three thousand thousand metres. At at that height the air is thin, the ultraviolet load is intense, the wind is constant and every centimetre of stem over the soil takes resources the plant cannot spare. A tall plant on that ground dries out faster, breaks sooner and gets little for its extra height, because there is no canopy it needs to clear.
The plant that survived is compact: short internodes, a strong thick main stem, branches held close, frequently wider than it is tall. In a tent that carries over directly: a pure indica seed stretches perhaps half its height again through flower where a sativa doubles, sits under a light with a modest short gap and seldom requires training at all. Anyone with limited height buy indica for this reason, and it is the mountain, not the breeder, that they are relying on.
The Valley Names on the Pack
Most indica seed names carry place names or derive from one, and the names are far more useful than they look. “Afghani” generally refers to stock out of the Mazar-i-Sharif region, which is a typical short, hash-plant, early-finishing type. “Hindu Kush” on a listing points to the high range proper and often to stock taken on the eastern side. “Chitral” and “Mazar” name particular valleys that have their own local forms, the first often colouring and the second heavy and slower for an indica. Kush Indica Seeds lists the collection area for every pack where it is known, and that turns the name a brand to a datum the grower can use.
Most indica packs on sale is hybrid material many generations from the valley, selected for uniformity and not to preserve the spread a pure landrace holds; a buyer who is after the spread has to look for packs described as unselected reproductions and accept the surprises that come with the label.
What Changes in a Tent
Every trait discussed above was a answer to a condition which a tent does not present, and any trait without its pressure does one of two ways: it becomes a free bonus or it becomes a cost. The fast finish and the short stature become bonuses, since nothing in a room punishes them. The density and the heavy canopy are costs, since the arid air that justified them is gone and the still atmosphere of a closed room does precisely the reverse influence.
That is why an indica grow goes well or fails in a single factor far more than any other: humidity in the final three weeks. A person who holds it low is rewarded with the hard, resinous, early harvest the mountain bred; one who does not gets mould inside the best colas, which is exactly where the mountain had arranged the plant to keep water in. In a room, the mountain is to be reconstructed in the last fortnight: cool, dry, moving air. All that remains about running indica is easy precisely since the population was selected for a place much harder.
Kush on the Label
The word that lent the range its name has moved further from it than almost any other in cannabis. “Kush” in a current seed listing can refer to a unselected Hindu Kush reproduction, a Californian Coast hybrid with one Kush grandparent, or a strain called Kush since the breeder thought the sound would sell. A OG Kush line, which accounts for most of the appearances of the word in the market, is most likely more sativa-influenced than a good deal of the stock it takes the name from, while its growth habit, finishing time and leaf say as much.
A practical reading is the one which holds across this page: ignore the word and read the terrain. A listing that states an low stretch, a flowering time under nine weeks, a hard flower and a broad leaf is selling a mountain plant whatever it is named; one that states a lanky frame, eleven weeks and open flowers is selling a plant from somewhere else wearing a borrowed name. The seed remembers the place it was shaped from; the name often has forgotten.