Every quality that moves an indica seed was bred there by a mountain. The short frame, the seven-to-nine-week flowering, the dense resinous buds, the broad blue-green leaf, the purple that appears as the nights go cold: none of these is a breeder’s invention. They are the answers a population arrived at over 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 ranges beyond it. Modern breeding took that answer down the mountain and refined it, yet the logic of the plant is to this day the shape of the terrain. The lines referred to below are drawn from the range at https://kushindicaseeds.com and its stock traces to Afghanistan, northern Pakistan and the Indian Himalaya; the argument though holds to any true indica from any seed bank. Reading the terrain is the most reliable way to understand the pack.
A Dry Corner of Central Asia
The Hindu Kush runs for about eight hundred kilometres from central Afghanistan into northern Pakistan, and the broader indica zone extending across to the western Himalaya to one side and the deserts of the Central Asian interior on the other. The plant has been grown there for a very long time, chiefly for hashish, which means selected generation after year by people who wanted resin above anything else: something that could be rubbed or sieved from a plant that would have ripened before the first frost.
This is a separate selection to the one that shaped the equatorial sativas, where daylength barely change and the plant could flower for most of a year. All that comes below is the outcome of a handful of conditions about the place: it is high, it is dry, the growing season is short, and its nights go cold fast. The sequence that they are taken here does not matter; a plant experiences every one of them at season.
Built for a Desert Autumn
The old homeland is dry: low humidity, hard sun, little rainfall through the late summer. A plant in such a place has two problems that resin solves at once. It must shield its flowering parts from ultraviolet light, and it must keep water inside the bud over weeks of dry wind. A heavy coat of trichomes do both: the resin heads absorb the ultraviolet and the waxy layer reduces moisture loss. Selection for hashish on top of that pushed the resin further, because resin was always the product.
Tight flower form belongs with the same cause: a tightly packed bud gives up less water than an open one in arid air. In a tent these two qualities arrive as a pair, but just one of them is unconditionally an advantage. The resin is. The density becomes a liability the moment the room is humid: a bud built to hold water in a desert retains it just as well in a wet tent, and botrytis moves through a dense indica cola more quickly than through any flower the equator has ever produced. The quality that moves the seed is the one that calls for a dehumidifier in the last few weeks.
The Colour of a Cold Valley
High-valley nights drop below ten degrees weeks before the days follow, and many indica lines respond to the chill by making anthocyanin, the same compound that colours a maple leaf red. In the plant it shows as purple through the calyxes, fan leaves and occasionally the stem, which it offers little for the grower beyond looking beautiful.
The thing to take from the colour is genetic, not cosmetic. The capacity to turn is inherited out of particular cold-valley populations, and a strain that purples every time with a cold last fortnight carries the ancestry regardless of what the label says. Lines sold as “purple” that will only colour with heavy cold, or never at all, usually carry the word in only the name and in the genes. Chilling the room in the last weeks brings the colour out where 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 costless trick.
Seven Weeks Before the Snow
Above two thousand metres the frost-free window is brief, and the autumn comes early and comes hard. A plant which took fourteen weeks to finish from the days began to draw in never set seed in that ground, and the genes left the population. The plant that stayed responds sharply to the first shortening days and finishes in about seven to nine weeks from the cue.
Indoors that response is the one most frequently cited indica quality. Flip to twelve hours and the plant commits immediately, grows over a fortnight and stacks flower for the rest of a brief cycle. The fastest lines at Kush Indica Seeds come in at around 7 weeks after the switch, which permits as many as five or six cycles a year from one space where a classic sativa allows perhaps two. That speed is no cleverness on the breeder’s side; it is the first snow encoded into the plant’s own calendar.
Height Is a Cost at Two Thousand Metres
Much of the old growing land sits from a thousand five hundred and three thousand thousand metres. At at that height the air is thin, the ultraviolet exposure is intense, the wind is constant and every centimetre of stem over the soil costs resources the plant can ill spare. A tall plant in that ground dries out more, snaps more and gains little for its extra height, since there is no canopy to clear.
The plant which survived is compact: short internodes, a strong dense main stem, side branches held close, often broader than it is tall. In a tent that carries over directly: a pure indica line stretches perhaps half its height again through flower whereas a sativa doubles, fits under a lamp with a modest modest distance and rarely needs tying at all. Anyone short on little height buy indica for precisely this trait, and it is the mountain, not the breeder, that they are relying on.
The Fat Leaf
The indica leaf is broad, heavy and dark, and few wide fingers whereas a sativa fan leaf has many thin ones. Two things about the climate favour that form. Thin air and hard sun put an heavy photon dose on each square centimetre, so a broad leaf catches plenty and does not need needing a lot of area; a large thin leaf in that light just scorch. And steady wind shreds fine foliage, while a thick, short-stalked leaf stays put.
The dark colour is pigment loaded thickly into a thick leaf, and one part of the same adaptation. For the tent the features matter in a single practical respect: a broad-leafed indica canopy blocks light from everything beneath the top tier far more completely than a sativa’s, so the lower buds of an untrained indica finish in airy and loose. Growers who remove a few few fan leaves at week three are reversing, a little, something the mountain put there for thousands of years.
The Valley Names on the Pack
The great majority of indica pack names are place names or derive from one, and the names are far more informative than they look. “Afghani” usually means a population out of the north region, which is the classic squat, resinous, early-finishing form. “Hindu Kush” on a name points to the high range proper and frequently to stock collected on the eastern side. “Chitral” and “Mazar” point to particular valleys with their own local types, the first often colouring and the second heavy and slower for an indica. Kush Indica Seeds gives the collection region on each line whenever it is known, which turns the name from a brand into a datum the grower can use.
Almost all indica seed on sale is worked material several generations removed from the valley, bred for consistency and not to preserve the variation of a pure landrace carries; a buyer who wants the spread needs to look for packs described as pure landrace stock and accept the variation which arrive with them.
What Changes in a Tent
Each trait discussed above was a answer to the condition which a tent no longer impose, and any solution without its pressure does either of two things: it turns into a cost-free advantage or it becomes a hazard. The speed and the short stature become advantages, since no condition in a tent penalises them. The density and the broad canopy are hazards, because the arid wind that justified them is absent and the still atmosphere of a closed room has exactly the reverse influence.
This is why the indica grow succeeds or goes wrong in one variable more than any other: humidity in the last three weeks. A person who keeps it low is rewarded with the dense, resinous, early flower the mountain built; one that lets it rise is punished with mould in the best colas, where exactly where the mountain had arranged hardest to hold water in. In a room, the terrain has to be rebuilt for the final fortnight: cool, dry, moving air. Everything that remains about growing indica is easy precisely since the population was selected to survive somewhere much harder.
What “Kush” Means Now
The word that lent the range its name has travelled a long way from it than any other in cannabis. “Kush” on a current seed listing can refer to a unselected Hindu Kush landrace, a Californian Coast hybrid with one Afghan grandparent, or a line called Kush because the seller liked the sound would sell. A OG Kush line, which accounts for most of the appearances of the word today, is most likely as much sativa-leaning than many of the plants it takes the name from, and its growth habit, flowering time and leaf shape show as.
The practical reading is the one which holds throughout this page: ignore the word and go back to the terrain. A listing which states an low stretch, a finishing time below nine weeks, a dense flower and a broad leaf is selling a mountain plant regardless of what it is named; one that gives a lanky habit, twelve weeks and open flowers is describing a plant from else with a borrowed name. The seed remembers the place it came from; the name often has forgotten.