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Ruderalis Strains Cannabis Seeds
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Cannabis ruderalis is a resilient subspecies native to Central and Eastern Europe, Russia, and parts of Central Asia.
It thrives in harsh climates with freezing temperatures and brief summers. Russian botanist D. E. Janischewsky first documented it in 1924.
Pure ruderalis is low in THC (often under 3%) but high in CBD, so it's not much use on its own. But breeders love it because crossing it with other strains creates many hybrids.
Read MoreWhere ruderalis comes from and why it's so hardy
Ruderalis grows wild in some of the coldest, harshest places on Earth, think Siberia, Central Asia and Eastern Europe. The name 'ruderalis' comes from a Latin word meaning rubble or dirt, and it refers to plants that pop up on disturbed ground like roadsides, abandoned fields and anywhere humans or nature have messed things up a bit.
This wild subspecies had to get tough to survive wind, freezing temperatures, dodgy light and unpredictable conditions.
Ruderalis plants are short and stocky, rarely taller than two feet, with thick stems and wide, pale green leaves. Seeds made their way to Amsterdam in the early 1980s, where breeders started using them to create new hybrids.
People in Mongolia and Russia have used ruderalis in folk remedies for hundreds of years.
The autoflowering quirk and rapid development
Ruderalis has a neat trick up its sleeve. Instead of relying on changes in daylight like many indica and sativa lines, it moves into its next stage of development based on age.
This trait evolved in regions with short summers and long, bright days, where waiting for longer nights would not be reliable.
Modern autoflowering hybrids take this built-in timing from classic ruderalis lines such as Ruderalis Indica and Ruderalis Skunk and mix it with traits from more familiar genetics.
The result is a category of seeds known for a compact, predictable life pattern that runs on their internal clock rather than on lighting conditions.
What's inside ruderalis and why breeders love it
Pure ruderalis is naturally low in THC, usually under 3%, sometimes as low as 0.1%, but it's packed with CBD, often between 4.5% and 9%.
When breeders cross ruderalis with potent sativa, indica or hybrid strains, they get autoflower hybrids, with compact size and toughness of ruderalis but the strength, flavour and aroma of their other parent.
Today's autoflowers can match or even beat traditional strains for potency.
Northern Lights Auto, for example, mixes ruderalis with the legendary Northern Lights line, and Royal Haze Automatic blends Skunk and Amnesia Haze with ruderalis for a simpler ride.
Ruderalis hybrids also shrug off pests, diseases and rough weather better.
A few ruderalis strains worth knowing about
Ruderalis Indica from Sensi Seeds is a semi-autoflower. It's a 90% indica cross between psychoactive indica genetics from southern Europe and wild ruderalis from the east, and it handles cold climates really well. It's got moderate THC and high CBD.
Siberian Ruderalis is a vigorous wild strain from near Lake Chebarkul in the Southern Urals, probably a mix of Kazakhstan landraces and local wild varieties.
It smells citrusy, produces loads of trichomes, and has 0.1–1% THC and 4.5–9% CBD. Lowryder was a game-changer that helped make autoflowers popular.
Quick One has a sweet citrus vibe with balanced cannabinoids, and Haze Berry Automatic smells fruity and sweet.
Do-Si-Dos Automatic and Auto Mazar are indica-leaning autoflowers bred from ruderalis crossed with Skunk, Afghan indica and other genetics.
Ruderalis Strains Frequently Asked Questions
It's a cannabis subspecies from Central and Eastern Europe, Russia and Central Asia that flowers automatically, stays compact and handles harsh climates brilliantly.
It's from the Latin word for rubble or dirt, referring to plants that grow on disturbed ground like roadsides and abandoned farmland.
The seed eventually flowers based on age, not light changes.
They're compact, usually between 30 and 120 centimetres tall, often one to 2.5 feet.
Pure ruderalis has low THC, often under 3% and sometimes just 0.1%, but high CBD, usually 4.5–9%. Modern hybrids can match photoperiod strains.
Russian botanist D. Janischewsky described it in 1924 during a trip to southern Siberia, noting its unique seeds and flowering cycle.
Hemp's bred for fibre and seeds and has under 0.3% THC. Ruderalis is wild, has around 3% THC and flowers automatically with little human interference.
Breeders cross it with sativa, indica or hybrids to add auto-flowering, compact size, quick maturation and toughness to new strains.
Ruderalis Indica, Ruderalis Skunk, Lowryder, Northern Lights Auto, Quick One, Siberian Ruderalis, Royal Haze Automatic, Haze Berry Automatic, Do-Si-Dos Automatic and Auto Mazar.
Pure ruderalis plants usually run through their whole life cycle in around ten weeks from seed, while most modern autoflowering hybrids take closer to eleven or twelve weeks, with a few finishing even faster.