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End of November Cannabis Seeds
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Strains marked for end-of-November outdoor harvest are those that breeders tag with a late-November harvest window in their own materials. These are usually long-flowering varieties, often sativa-leaning or hybrids with drawn-out bloom cycles, that need more time to finish than most strains picked in September or October.
In the Northern Hemisphere, outdoor cannabis harvest generally runs from mid-September to mid-November, so these sit right at the tail end of that span. Their genetics mainly come from equatorial and near-equatorial zones, where cannabis evolved under steady daylight and long, warm seasons.
Read MoreWhere these strains evolved
Ever wondered why some strains take so much longer to finish? Varieties tagged for end-of-November harvest trace their roots back to places near the equator, Southeast Asia, Central Africa, and chunks of Central and South America.
In those regions, cannabis grew under consistent daylight and warm weather that stretched on for months, so plants developed flowering cycles that can run from ten to twenty weeks, way longer than the eight-to-ten-week cycles seen in indica types from the Hindu Kush mountains.
Breeders in temperate spots, especially California and Spain, have spent years selecting and stabilising these long-blooming lines, shaping them to work in places where autumn stays mild into late November and the plants can finish their extended bloom before winter rolls in.
Standout examples of end of November harvest strains
Super Silver Haze is a classic sativa that stretches its flowering well into late autumn. Shine On Farms in northern California's Anderson Valley legally grows this one, and it's still going long after neighbouring farms have wrapped up their harvests.
Chocolate Thai, a Southeast Asian landrace, takes up to fourteen weeks to flower and is said to be able to push harvest right into the final days of November.
DJ Short's Blueberry is mostly indica, but some of the sativa relatives in his catalogue need waiting until late November or even December in northern latitudes.
Pure sativas in general ask for ten to fourteen weeks of flowering indoors and usually get picked outdoors in early to mid-November, though some stretch further depending on the location.
Frisian Dew from Dutch Passion is a cannabis cup winner that normally finishes in late September or early October, but related long-blooming sativa photoperiod strains from the same Dutch breeding scene can run into November and December in Mediterranean climates.
Auto Mazar, also from Dutch Passion, reportedly takes around a hundred days from seed to harvest outdoors and has been tested across climates from the Mediterranean to Scandinavia, though it's an autoflowering type so it doesn't rely on photoperiod cues the same way traditional long-season sativas do.
Strains with extended flowering times are often said to carry higher-than-average THC levels and layered terpene profiles, thanks to those extra weeks of resin production and cannabinoid synthesis.
Breeders in California and Spain have been especially active in developing and stabilising these late-finishing lines, taking advantage of their regions' extended warm spells to bring equatorial genetics to maturity outdoors without needing artificial light.
End of November Frequently Asked Questions
It means the breeder reckons the strain will be ready for outdoor harvest around the end of November in suitable climates, based on how long it flowers and where its genetics come from.
Long-flowering sativa genetics evolved near the equator, where growing seasons are extended, and these strains need ten to twenty weeks to finish flowering compared to the shorter cycles of indica varieties.
They trace back to equatorial and near-equatorial zones like Southeast Asia, Central Africa, and parts of Central and South America, and breeders in California, Spain, and other Mediterranean-climate areas have adapted them.
Most are sativa-dominant or pure sativa, though some hybrids with extended flowering periods also fall into this harvest window. Pure indicas usually finish much earlier in autumn.
Super Silver Haze, Chocolate Thai, and certain late-blooming sativa lines from DJ Short's catalogue are recognised examples that can stretch into late November harvest windows.
Many do, since the extended flowering period allows for prolonged cannabinoid and terpene production, though exact percentages vary by strain.
Both regions enjoy mild, extended autumns that let long-flowering strains mature outdoors without early frosts or excessive cold, making them ideal for developing and stabilising late-harvest lines.
Pure sativas can flower for ten to fourteen weeks or longer, with some equatorial landraces like Chocolate Thai taking up to fourteen weeks, pushing outdoor harvest into the final weeks of November.
Yes, some breeders offer autoflowering versions like Auto Mazar, which complete their cycle in around a hundred days regardless of photoperiod, though traditional photoperiod sativas remain the most popular late-harvest choice.
Their extended flowering cycles, equatorial heritage, layered terpene profiles, and the challenge of stabilising such long-season genetics in temperate climates make them historically and botanically significant for collectors interested in diverse cannabis lineages.