Strain Library

Breeder-verified strains with grow data and character profiles

36 results
SativaSweet SeedsSweet Cheese

Sweet Cheese is Sweet Seeds' fusion of Cheese with Black Jack — combining two of the strongest hitters in the catalog to produce a hybrid that highlights the virtues of both ancestors. The cross brings a new twist of aromas to Black Jack's flavor foundation, producing long central buds surrounded by plenty of peripheral buds maintaining long structure and good caliber.

Grow data
Flowering9 wks
Indoor yield400–600 g/m²
Indoor height90–160 cm
THC15–20%
Photoperiod
PsychoactiveSweetMedium THC
HybridRoyal Queen SeedsBubblegum XL

RQS's take on the Bubblegum family, built on a Power Plant x Santa Maria cross. The Bubblegum lineage started in Indiana in the early 1990s, with phenotypes refined in New England before the Dutch cut perfected by TH Seeds put the whole line on the international map. That Dutch pedigree earned the family a 2005 High Times Cannabis Cup and a Spannabis Cannabis Champion's Cup the same year, and the candy-sweet terpene profile has kept the variety in rotation ever since. RQS's XL version pairs that Bubblegum heritage with a Power Plant backbone for a plant with the signature nose but a sturdier, more commercial structure than the original Indiana cut.

Grow data
Flowering8-9 wks
Indoor yield450–500 g/m²
Indoor height80–140 cm
THC19%
Photoperiod
CalmingCandyMedium THC
HybridRoyal Queen SeedsCandy Kush Express

Candy Kush Express is RQS's fast-flowering answer to the long-standing "I want a Kush but not a three-month cycle" request. Genetically she is Sweet Special x Royal Kush. Sweet Special brings the candy notes — that lineage traces back through Grapefruit, Hog, and Cream Caramel, three strains that each put citrus-sweet profiles on the map in their own era. Royal Kush contributes the backbone, descending directly from the legendary Afghani Kush and carrying the indica density, resin production, and sedative potential that come with that side of the family. What makes this cross unusual is the split: 40% sativa, 60% indica is about as close to balanced as the Kush family gets, where most crosses tip hard toward knock-out indica territory. The result is a plant that tastes like candy, grows like a compact indica, and hits like a much more balanced hybrid than the name would lead you to expect.

Grow data
Flowering7-9 wks
Indoor yield475–525 g/m²
Indoor height100 cm
THC18%
Fast Flower
Physically RelaxingCandyMedium THC
HybridRoyal Queen SeedsCritical

Critical is the answer to the question most commercial growers actually ask - what yields the most weight in the shortest time without sacrificing smoke quality? The genetic answer RQS landed on is Afghani x Skunk, an indica-dominant cross that compresses a classic heavy-stone Afghan profile into a plant that finishes in seven weeks. This isn't a connoisseur strain and isn't trying to be. It's a production pick built around a specific calculation: maximum grams per square meter per week, with enough potency and flavor to stand up to retail-grade expectations.

Grow data
Flowering7-8 wks
Indoor yield600 g/m²
Indoor height100 cm
THC18%
Photoperiod
HeavyCandyMedium THC
HybridSweet SeedsDark Devil Auto

Dark Devil Auto is Sweet Seeds' hybrid between the incredible Big Devil XL Auto and an exotic autoflowering strain with purple flowers. The purple characteristic is inherited from ancestors from the Chitral region in the Pakistani Hindu Kush near Afghanistan, which contributes faster flowering while bringing sweet aromas and purple colors. Dark Devil Auto shows strong hybrid vigor from germination — plants grow with the appearance of Indica-Sativa hybrids featuring a strong central stem, numerous side branches, and a big main cola. Resin production is abundant both in flowers and surrounding leaves, and the aromatic signature combines sweet and fruity character with incense hints and delightful citrus tones.

Grow data
Flowering8-9 wks
Indoor yield400–600 g/m²
Indoor height80–130 cm
THC15–20%
Autoflower
RelaxingSweetMedium THC
HybridSensi SeedsEarly Skunk

Early Skunk Feminized is Sensi Seeds' best all-rounder for outdoor cultivation, built specifically to produce bumper crops in climates that would kill lesser strains. A 35% sativa, 65% indica hybrid that won an award at the High Life Cannabis Cup in 2006, Early Skunk combines uncomplicated skunk genetics with a powerful hybrid buzz and the mould-resistance needed to finish reliably in the short, wet summers typical of Northern Europe. Robust and resilient enough to reward novice growers, she's the strain Sensi built to solve a specific problem: before this line, growing potent skunks to full maturity in places with short summers was essentially impossible. Fat skunk buds tend toward mould in poor weather, which forced northern growers to harvest before flowering peaked. Early Skunk was developed explicitly to solve that problem.

Grow data
Flowering8-9 wks
Indoor yield500–600 g/m²
Indoor height140–200 cm
THC15–18%
Photoperiod
UpliftingEarthyMedium THC
HybridFast BudsGSC Auto

Fast Buds' Girl Scout Cookies Auto is one of their best-selling and most renowned strains — a 20% THC cultivar with extra-large yields and the fantastic sought-after cookie flavor that made the GSC family famous. The Cali cookie genetics are a cinch to grow indoors or out, producing dense sparkling nugs. A huge-yielding sticky resin machine.

Grow data
Flowering9-10 wks
Indoor yield550 g/m²
Indoor height60–100 cm
THC20%
Autoflower
RelaxingCookiesMedium THC
HybridRoyal Queen SeedsOG Kush

OG Kush is arguably the most mythologized strain in American cannabis, and RQS's version works from the most commonly cited lineage — Chemdawg, Lemon Thai, and Pakistani Kush. The true genetic origin is disputed, and has been since the early 1990s: some growers maintain OG Kush is just a specific Chemdawg cut from that period, others credit the three-way cross above, and the debate has more or less settled into "nobody really knows." Even the name OG has been argued over for decades, with Original Gangster and Ocean Grown both claiming etymological authority, though most modern users and breeders have converged on Ocean Grown based on the strain's west coast origins. What's not disputed is the 1st place win at the Highlife Cannabis Cup, or the plant's status as a foundational modern hybrid — OG Kush is in the parentage of an enormous portion of today's commercial cannabis, directly or indirectly. Genetic split sits at 75% indica, 25% sativa.

Grow data
Flowering7-9 wks
Indoor yield425–500 g/m²
Indoor height90–150 cm
THC19%
Photoperiod
CalmingCitrusMedium THC
HybridDutch PassionPassion #1

Passion #1 is one of the oldest outdoor varieties in the Dutch Passion collection — a feminised hybrid cannabis strain with California origins that have been shaped by Dutch breeding work since 1980. Originally developed as one of the best green outdoor varieties in 1970s California, the strain was formerly known as Amstel Gold and is the result of years of selection and crossing. It's been bred selectively over decades for speed, size, yield, and potency, and the combination of those four traits has made Passion #1 one of the fastest and at the same time largest outdoor varieties available on the commercial market. THC levels can reach nearly 20%, which is high for an outdoor strain and particularly high for one with this growth vigor — Passion #1 is no weak outdoor option. Smokers looking for potent resin-drenched buds from a strain bred explicitly for outdoor cultivation have relatively few better picks. The aroma is fresh, tart, and slightly spicy, dominated by a fruity blend of lemon, lime, and woody herbs — rosemary and thyme come through clearly for experienced palates. The scent is strong without being super-penetrating, a practical advantage for outdoor growers who prefer not to advertise their plants to neighbors or passers-by. The taste follows the aromatic profile: sour citrus notes mixed with a bit of spice and earth, smoking smoothly and producing a strong potent up-high. The sharp, spicy, sour notes can tingle the throat on bigger draws, which some users love and others find notable.

Grow data
Flowering7-9 wks
Indoor yield500–600 g/m²
Indoor height140–200 cm
THC18–20%
Photoperiod
EnergizingCitrusMedium THC
HybridRoyal Queen SeedsRoyal AK Automatic

Royal AK Auto is the autoflowering reinterpretation of the original AK-47 hybrid — one of the most recognizable strain names in commercial cannabis. The lineage pulls from the same pool of Colombian, Mexican, Thai, and Afghan landraces that defined the AK character: hardiness, resilience, and a sweet-floral nose that set the strain apart from the heavier-indica skunks of its era. RQS's auto version adds ruderalis genetics for rapid cycle times without sacrificing the giggly, daytime-friendly effect of the original. Genetic split sits at 40% indica, 35% sativa, 25% ruderalis — an unusually balanced distribution for an autoflower, and one that preserves the AK-47 experience rather than substituting a generic auto profile for it. For growers who want AK character without the photoperiod commitment or the multi-phenotype lottery of traditional polyhybrid seed packs, this is the closest commercial match available.

Grow data
Flowering6-8 wks
Indoor yield350 g/m²
Indoor height50–80 cm
THC15%
Autoflower
GigglyEarthyMedium THC
HybridRoyal Queen SeedsRoyal Cheese Automatic

Royal Cheese Auto is the autoflowering version of the legendary UK Cheese line — a strain bred in Britain for its notorious pungency and tranquil, munchy effect profile. RQS built their auto version by crossing Cheese into Royal Critical Auto, which contributed the short cycle and euphoric lift of a Cannabis Cup-winning autoflower. The result is a 50% indica, 30% sativa, 20% ruderalis split that preserves the skunky cheese aroma while cutting weeks off the timeline. For growers chasing Cheese character without the full photoperiod commitment, this is the cleanest shortcut RQS offers, and the phenotype expression stays close enough to the original UK Cheese that veteran growers recognize the lineage immediately.

Grow data
Flowering7-8 wks
Indoor yield475 g/m²
Indoor height60–100 cm
THC15%
Autoflower
Physically RelaxingCheeseMedium THC
HybridSensi SeedsShiva Skunk

Shiva Skunk Feminized is Sensi Seeds' strongest skunk variety — an 85% indica, 15% sativa hybrid built from Northern Lights #5 and Skunk #1, with genetic depth that traces back to some of the most decorated strains in the Sensi catalog. The short flowering time and high yield potential make her well-suited to continental climates and indoor rotation, and the distinctive musky, citrusy aroma carries through both growing and consumption. She's named after the Hindu deity Shiva — partly because of the traditional cultural association between Shiva and cannabis, partly because the strain is just that powerful. Regular and Automatic variants are also available.

Grow data
Flowering6-8 wks
Indoor yield400–450 g/m²
Indoor height80–120 cm
THC18–20%
Photoperiod
IntenseMuskyMedium THC
HybridSensi SeedsSkunk #1

Cannabis cultivation is effectively inconceivable without Skunk #1. Sensi Seeds' version has been exciting cannabis growers globally for more than a quarter century, and the strain changed cannabis culture in a way few others have — the genetic backbone of an enormous portion of modern hybrids can be traced back to this line. Now available as a premium-quality feminized variant, Skunk #1 combines the energetic high of a sativa with the relaxed stone effect of an indica, with a skunky flavor profile that sits halfway between earthy and sweet. Uniformly growing plants, extreme robustness, and the foundational genetic heritage that defined a whole family of crosses. Often imitated, rarely equaled.

Grow data
Flowering6-7 wks
Indoor yield500–600 g/m²
Indoor height100–140 cm
THC15–17%
Photoperiod
UpliftingEarthyMedium THC
HybridRoyal Queen SeedsSpecial Queen 1

Special Queen 1 is a deliberate throwback to the 1990s skunk-hybrid era - the period when European breeders were racing to replicate the Mexican-Colombian-Afghan hybrid that had been arriving in Europe through the underground and trying to turn it into something reproducible and commercial. The result of that decade of work was the Skunk family that still anchors much of modern cannabis genetics. Special Queen 1 crosses Power Bud into classic Skunk to produce a clean, affordable version of that heritage - deliberately aimed at first-time growers and anyone who wants a no-fuss plant without committing premium-seed pricing to the experiment.

Grow data
Flowering8-9 wks
Indoor yield500 g/m²
Indoor height150 cm
THC18%
Photoperiod
UpliftingEarthyMedium THC
HybridRoyal Queen SeedsWhite Widow

White Widow is one of the strains that made 1990s Dutch cannabis what it is, and like most of the classics her exact origin story has drifted into legend. The generally accepted account is that the original cross pollinated a Brazilian sativa landrace with an indica from Kerala in southern India — an indica selected over years in the mountain regions specifically for extreme resin production. Whatever the precise pedigree, the plant landed in the Netherlands in the early '90s and became one of the most copied lines in the industry, a template for what frosted, balanced hybrid flower could look like. RQS's version works from White Widow S1 genetics and preserves the signature 50% indica / 50% sativa split that defines the variety. Since her first release more than three decades ago, dozens of seed banks have offered their own WW variants; RQS's is among the more disciplined interpretations, prioritizing uniformity, resin potential, and stable phenotype expression over novelty or flash.

Grow data
Flowering8-10 wks
Indoor yield450–500 g/m²
Indoor height100 cm
THC19%
Photoperiod
EnergizingFruityMedium THC
HybridSensi SeedsWhite Widow

White Label's White Widow Regular is the budget-tier interpretation of one of Amsterdam's most recognizable hybrids — 65% indica, 35% sativa, and still a coffeeshop mainstay nearly a quarter century after the original release. The strain gets its name from the thick layer of white trichomes that coats mature buds, a feature that signals the dense THC content underneath. Compact plants, high yield potential, and a genetic line that traces back thousands of years make White Widow a strain that has survived every fashion cycle in cannabis genetics since the 1990s. White Label's version preserves the core genetics while prioritizing accessibility — easy to grow, resistant to temperature fluctuations, and forgiving enough that newcomers growing cannabis for the first time can run her without catastrophe.

Grow data
Flowering7-9 wks
Indoor yield400–500 g/m²
Indoor height100–140 cm
THC20%
Photoperiod
EuphoricFloralMedium THC
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