by giantSativa seeds arrive with more jargon around them than any other category of cannabis seed, and a good deal of it means one thing to a botanist, something else to a seed company and a third to the person trying to make a decision in front of the pack. A disappointing sativa grow nearly always traces back to a word that was read in the wrong one of those senses: a flowering time read as a promise, a “sativa-dominant” tag taken as a statement of character, a landrace chosen as if it were a modern hybrid. The entries below were written with the range at https://hazesativaseeds.com to hand for reference, since it runs strongly to the classic end of the spectrum and that is where the vocabulary matter most; the definitions themselves apply to any sativa seed from any shop. They are in no particular order, since none of them is usable on its own without the rest.
Stretch
The burst of upward growth that follows the change to flowering. Most tent-bred plants gain around half their height again; sativas commonly double, and some equatorial types triple. The stretch lasts two to four weeks and will not be halted after it has started, merely redirected by training.
In practical terms, the stretch figure is the number worth read ahead of deciding when to flip. A sativa switched at sixty centimetres centimetres inside a standard tent is touching the lamp by week four of flower; one switched at thirty centimetres has room. People coming over from indica stock almost always switch far too late the first time, and the consequence is written on the ceiling of the tent.
Latitude
The one number that determines whether a sativa can ripen outdoors, and one that no pack prints. Long-flowering plants require a autumn days to continue late enough for the plant to finish; in high latitudes the frost comes first, and the grower harvests an unripe plant in late October or else loses it rot in November. A further to the equator, in the northern hemisphere, the longer the season runs, and Mediterranean and low-latitude growers are able to finish plants that temperate growers cannot.
The practical reading for a seed listing: an “outdoor” line finishing month is given for the breeder’s home latitude, usually somewhere within southern Europe or the west coast of the United States, and each step further north of that pushes the date later towards the weather. A grower above about the fiftieth parallel who wants a true sativa outdoors needs to be shopping for an autoflower or else a covered space, and not a better summer.
Flowering time (and what it is counted from)
The number of weeks from the start of flowering and maturity, and the one most misunderstood figure on a sativa pack. For photoperiod seed it is measured from the day the light is cut to twelve hours, rather than from germination, so a “fourteen-week” sativa started after an eight-week vegetative period is a twenty-two-week plant. Seed companies additionally quote the shorter end of a spread, since the longer end moves fewer seed.
Sativa lines run everywhere from ten weeks to well over twenty, and the longest strain in the Haze Sativa Seeds range is at about 16 weeks from the flip. The catalogue can be filtered by that number, which is the sensible first step if you have a room with a fixed schedule. A grower who allows four weeks on top of whatever the pack states is rarely disappointed.
Hermaphroditism in long-flowering lines
The production of pollen-bearing flowers on a female plant, usually late in flower and often under stress. Every cannabis line has some tendency for it; sativa lines express it more often, for one simple reason: sixteen weeks of flower is sixteen weeks of opportunity for a timer leak, a temperature spike or a late watering to set it off, and a old plant has already gone past its natural finish frequently produces a few desperate male sacs on its own as a last attempt to make seed.
None of this makes a sativa line weak by nature; it means the grower’s consistency matter over a longer stretch. Light-tight room, steady conditions and harvesting the moment the plant is ready and not a weeks after remove most of the problem. A listing that states the breeder tests parents for hermaphrodite tendency is saying something worth hearing for a long-flowering line than on any else.
Landrace versus heirloom
A population of plants shaped through centuries to a particular place by the local climate and growers alike, rather than by modern breeding. Colombian, Thai, Congolese and Mexican stock are the sativa examples. A landrace is variable, rather than a single plant: within a pack the heights, finishing times and aromas spread widely than any tent-bred hybrid, and this spread is the whole value of growing one.
The trap is treating a landrace as a modern product. It brings habits that made sense in an equatorial field, such as height no tent can hold and a flowering clock set to an equatorial daylength the majority of growers cannot offer. “Heirloom” on a listing generally refers to a landrace that has been reproduced away from its origin over a number of generations, often with light selection towards tent life; it is closer to manageable but nonetheless not a hybrid. A shop offering “landrace” that does not give a collection point and a reproduction history is applying the word loosely, and the seeds should be priced accordingly.
Equatorial
Describes plants from regions where daylength barely changes across the year, and where the plant never develop a strong reaction to changing days. Such lines frequently flower slowly at a conventional twelve-hour schedule, because twelve hours is, to them, an unremarkable day rather than a signal.
The working response, passed down between sativa growers over decades, is to cut the light further: eleven hours, sometimes ten, especially during the final weeks. It loses some yield yield and gains an earlier clearer finish. A listing that says “equatorial” is warning you this with one word, and a grower that takes it as mere origin has missed the instruction hidden in it.
Foxtailing (and when it is not a fault)
The habit of certain flowers to grow new calyx clusters on top of old ones, giving towered, irregular buds rather than round ones. In the majority of indica-leaning strains it is a heat response, typically caused by light too close or temperatures that is too high, and the standard response is to fix the cause.
In many sativas, above all Thai and some Haze lines, it is genetic and is going to happen in a flawless room. A new sativa grower frequently spends a month hunting a fault that is not there, lowering lights and temperatures only slowing a long flower further. The listing seldom warns which kind you should expect; the lineage generally tells you.
Terpinolene
A terpene found in high amounts in many old sativa strains and accounting for most of what people mean as the “sativa” aroma: fresh, piney, citrus and faintly sweet all at once. It is volatile, lost easily by fast drying, and terpinolene degrades more quickly in the cure than the earthier terpenes that lead indica-leaning lines.
To a seed buyer the name earns two things. Where a listing lists terpinolene as the leading terpene, the strain most likely has substantial old-sativa ancestry whatever the label claims. And where the you wants that profile to still be there by the jar, the drying is going to be slow and slow; a warm dry flattens a terpinolene line to a flower that smells of hay and leaves no trace of what the pack described.
Haze (the family, not the smell)
Originally a specific line of plants put together in 1970s California from Mexican, Colombian and Thai landraces, and then kept and refined in the Netherlands. A true Haze grows tall, branches sparsely, takes for twelve to sixteen weeks and smells of spice, citrus and something sharp that no other line exactly reproduces.
In its looser sense “Haze” is any cross that carries a share of that family, which by now is most of the sativa-leaning catalogue. A listing that says “Haze” and gives no lineage could be mostly percent original classic family or a small fraction of it, and the grow time tracks the share, not the name. The working question is never “is it a Haze” but “how much, and via which parent”.
Sativa-dominant (the label)
The marketing category and not a botanical one. The phrase generally means that more of a hybrid’s parents were described as sativa by the breeder who drafted the description, and sometimes signals no more than a certain the flowers are airier or the smell sharper than the same breeder’s indica-labelled releases.
The effect people associate with a word, clear-headed rather than heavy, is governed far more by terpene profile and by THC balance than it is by ancestry, and a good number of “sativa-dominant” releases produce a flat sleepy result and a good number of indica-labelled lines deliver exactly the opposite. To a grower the label is worth something as a rough hint to growth habit, flowering time and stretch; as a guide to how it feels it is next to worthless without the aroma notes.
Comments are closed.