Indica Seeds: What the Mountains Bred In
Each trait that sells an indica seed has been bred there by a mountain. The squat stature, the fast flowering, the dense frosted buds, the wide blue-green leaf, the colour that comes in as the nights turn cold: not one of them is a breeder’s invention. They are the solutions a population arrived at through thousands of years to a specific combination of pressures, in high altitude, in a brief dry, cold summer, on the valleys of the Hindu Kush and the ranges beyond it. Modern breeding took that answer down the mountain and polished it, yet the logic of the plant is to this day the logic of the place. The examples pointed to in what follows are drawn from the range at https://kushindicaseeds.com and its catalogue goes back to Afghanistan, northern Pakistan and the Indian Himalaya; the account itself holds to any genuine indica from any shop catalogue. Reading the terrain is the quickest way to understand the pack.
Where the Population Formed
The Hindu Kush stretches for about eight hundred kilometres out of the middle of Afghanistan into northern Pakistan, with the wider indica homeland extending over to the Indian Himalaya to one side and the lowlands around the Afghan plateau on the other. The plant has been cultivated there for centuries, chiefly for hashish, and chosen year after year by people who wanted a plant above anything else: something that could be sieved and sieved from a plant that had ripened before the first frost.
That is a different selection to the one that shaped the equatorial sativas, where daylength barely vary and the plant could flower for half a year. Everything that follows is the consequence of four conditions about the terrain: it is high, it is arid, its summer is short, and its nights turn cold early. The sequence that they are taken below hardly matter; a plant experiences all of them in the same season.
Leaves for a Thin Atmosphere
The indica leaf is broad, thick and a deep green, and few wide lobes whereas a sativa leaf has many thin ones. Two things about the terrain favour the broad form. Thin air and hard sun mean a high light dose on each square centimetre, and a wide leaf gathers plenty without much area; a large narrow-fingered leaf would simply scorch. And constant wind shreds thin leaves, whereas a thick, short-petioled leaf stays put.
The dark colour is chlorophyll packed densely into a heavy leaf, and one part of the same answer. For the grower these leaves matter in one practical respect: a dense indica canopy shades all growth beneath the top layer much more thoroughly than a sativa’s, so lower flowers on an unmanaged indica finish in small and weak. People who strip a few few fan leaves at week three are undoing, a little, something the mountain did over many thousands of years.
Anthocyanin and the Autumn
High-valley nights fall under ten degrees weeks before the days do, and many indica populations respond to the chill by making anthocyanin, the same compound that colours a maple leaf red. In the plant it appears as purple in the bracts, leaves and sometimes the stem, which it does little for the grower beyond look beautiful.
A thing to take from it is a matter of lineage, rather than cosmetic. The tendency to colour is inherited out of particular cold-valley populations, and a line that colours every time with a cold last two weeks carries the ancestry regardless of what the name says. Strains sold as « purple » that will only turn under extreme cold, or never really, typically have the colour in the name and not in the plant. Chilling the room in the final weeks brings the colour out where it is present and achieves nothing where it is absent; it also checks ripening, so it is a bargain and not a free trick.
Dry Air: Why the Buds Are Dense and Resinous
The old homeland is arid: thin humidity, hard sun, rare rainfall through the late summer. A plant there has two problems which its resin answers at once. It needs to shield its reproductive parts from UV exposure, and it needs to keep moisture inside the bud over weeks of desiccating wind. Trichomes do both: the resin heads absorb UV and their coating slows water loss. Selection for hashish then pushed the trait further, since resin was always the crop.
Tight flower structure belongs with the same cause: a tightly packed bud gives up less water than an airy one in arid air. Inside a tent these same qualities come together, and only one of them is unconditionally an advantage. The resin is. The density turns into a risk the moment the room is damp: a bud shaped to retain water in a desert holds it just as well in a damp room, and botrytis moves in a hard indica cola faster than in anything the equator ever produced. The trait that moves the seed is the same trait that needs a drier room during the last three weeks.
Height Is a Cost at Two Thousand Metres
Much of the old growing zone sits from a thousand five hundred and three thousand metres. At at that height the air is thin, the ultraviolet exposure is heavy, the wind is constant and every centimetre of stem over the ground takes resources the plant cannot spare. A tall plant on such terrain dries out more, snaps more and gets nothing for its extra height, because there is no canopy to outgrow.
The population which survived is compact: short internodes, a single thick main stem, side branches kept close, often wider than it is tall. In a tent that translates straight: a true indica line gains perhaps half its height again in flower whereas a sativa doubles, fits under a light at a modest gap and rarely requires training at all. Anyone with limited headroom choose indica for precisely this trait, and it is the mountain, not the breeder, that they are relying on.
The Short Season: Why It Flowers Fast
At two thousand metres the growing season is short, while the autumn comes quickly and comes hard. A plant that took fourteen weeks to finish from the days started to shorten did not set seed on that terrain, and the genes left the population. The plant that stayed reacts sharply to shortening days and finishes in about seven to nine weeks after the signal.
In a tent that response is the single most valued indica quality. Switch to twelve hours and the plant moves at once, grows over a fortnight and fills flower over the rest of a brief run. The fastest lines at Kush Indica Seeds come in in around 7 weeks after the switch, and that allows five or six cycles a year from one room where a long sativa gives two. This speed is not cleverness on the breeder’s part; it is the snowline written into the plant’s calendar.
Reading the Place Names
Most indica pack names carry place names or descend from them, and the names are far more useful than they look. « Afghani » generally means a population from the north region, and a typical short, resinous, early-finishing type. « Hindu Kush » in a listing points to the high range itself and often to stock collected on the Pakistani side. « Chitral » or « Mazar » name specific valleys with their own local types, the former often colouring and the second heavy and late for an indica. Kush Indica Seeds gives the origin area for each pack where it is known, and that turns the name from a brand into a datum the grower can plan around.
Almost all indica packs on sale are hybrid stock several generations from the valley, selected for consistency rather than to preserve the variation of a true landrace carries; a buyer who wants the spread needs to look for packs described as pure landrace stock and expect the surprises which come with them.
Where the Adaptations Turn Against You
Every adaptation described above was an solution to the condition which a tent does not present, and any trait that has lost its problem does either of two ways: it becomes a cost-free bonus or it becomes a hazard. The speed and the short frame are bonuses, because nothing in a tent penalises a plant for them. The density and the broad canopy are hazards, because the dry air that justified them is gone and the still air of a sealed room has exactly the opposite influence.
This is why an indica grow succeeds or goes wrong on a single factor more than any other: humidity during the last three weeks. A grower who holds it down gets the dense, resinous, early harvest the mountain bred; one who lets it rise gets rot in the thickest colas, which is exactly where the mountain was arranged the plant to hold water in. In a room, the terrain is to be reconstructed for the final two weeks: cool, dry, moving air. Everything that remains about running indica is easy precisely because the plant was selected for a place much harder.
What « Kush » Means Now
The word that lent the range its name has since travelled a long way from it than any other in cannabis. « Kush » in a current seed name may refer to an unselected Hindu Kush reproduction, a Californian Coast hybrid carrying one Afghan ancestor, or a line named Kush since the breeder liked the sound of it. A OG Kush line, and this accounts for most of the use of the word today, is probably as much sativa-influenced than many of the plants it borrows the name from, while its stretch, flowering time and leaf shape show as much.
A usable reading is the same one that applies throughout this article: look past the word and read the terrain. A listing that gives a low stretch, a finishing time under nine weeks, a hard bud and a wide leaf is describing a mountain plant whatever it is named; one that gives a lanky frame, twelve weeks and open buds is describing something somewhere else wearing a mountain name. The seed carries the place it was shaped from; the label often does not.