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The United States of America has established itself as an undisputed benchmark in the cannabis world, leading the development and improvement of high-quality genetics. American seeds stand out for their potency, yield, and unique aroma profiles that have won over growers worldwide. Cannabis connoisseurs appreciate the uniqueness of USA strains, whose exquisite flavors and distinctive aromatic profiles set them apart from the more traditional strains developed in Europe.

At Sweet Seeds®, we specialize in developing feminized cannabis seeds (both photoperiod-dependent and autoflowering) using iconic genetics from the United States. Among the most renowned American cannabis strains in our catalog, we can find Chem Dawg, OG Kush, Trainwreck, NYC Diesel, Girl Scout Cookies, and Gorilla Glue, among others. These genetics are fully adapted for both outdoor and indoor growing, producing dense, potent buds with an exceptional aromatic intensity.

These USA strains have had a profound influence on today’s cannabis culture, everywhere in the world.

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Diablo’s Delight XL Auto®
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Autoflower seeds

Diablo’s Delight XL Auto®

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€30.00
Studio 54 Stardust Auto®
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Autoflower seeds

Studio 54 Stardust Auto®

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€30.00
Permanent Jealousy XL Auto®
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Autoflower seeds

Permanent Jealousy XL Auto®

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€30.00
Pineapple Slush XL Auto®
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Autoflower seeds

Pineapple Slush XL Auto®

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€30.00
Mental Rainbow F1 Fast Version®
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F1 Fast Version® seeds

Mental Rainbow F1 Fast Version®

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€30.00
Monster Maker®
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Photoperiod-dependent seeds

Monster Maker®

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€30.00
Tropical & Delicious Mix®
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Autoflower seeds

Tropical & Delicious Mix®

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€25.00
Fruity & Delicious Mix®
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Autoflower seeds

Fruity & Delicious Mix®

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€25.00
Sweet Monster Mix®
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Photoperiod-dependent seeds

Sweet Monster Mix®

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€25.00
F1 Fast Version® seeds

Papaya Zoap F1 Fast Version®

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€30.00
Autoflower seeds

Papaya Zoap Auto®

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€30.00
Autoflower seeds

Jealousy Z XL Auto®

€30.00
Autoflower seeds

Jet Fuel Mandarine XL Auto®

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€30.00
1 Premio
F1 Fast Version® seeds

Tropicanna Poison F1 Fast Version®

€28.00
The Red Family seeds

Tropicanna Poison XL Auto®

€28.00
Autoflower seeds

Orange Apricot Glue XL Auto®

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€30.00
Autoflower seeds

Gorilla Girl XL Auto®

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€30.00
1 Premio
F1 Fast Version® seeds

Strawberry Cola Sherbet F1 Fast Version®

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€30.00
F1 Fast Version® seeds

Gorilla Girl F1 Fast Version®

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€32.00
Autoflower seeds

Sweet Mandarine Zkittlez XL Auto®

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€30.00
F1 Fast Version® seeds

Sweet Mandarine Zkittlez F1 Fast Version®

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€30.00
1 Premio
The Red Family seeds

Red Hot Cookies®

€28.00
Autoflower seeds

Strawberry Banana Gelato XL Auto®

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€28.00
Autoflower seeds

Mimosa Bruce Banner XL Auto®

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€30.00
1 Premio
Autoflower seeds

Sweet Gelato Auto®

€28.00
Autoflower seeds

Sweet Mimosa XL Auto®

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€30.00
3 Premio
F1 Fast Version® seeds

Killer Kush F1 Fast Version®

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€24.00
F1 Fast Version® seeds

Gorilla Sherbet F1 Fast Version®

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€30.00
3 Premio
Photoperiod-dependent seeds

Gorilla Girl®

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€36.00
The Red Family seeds

Red Mimosa XL Auto®

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€30.00
Autoflower seeds

Runtz XL Auto®

€32.00
The Red Family seeds

Red Strawberry Banana Auto®

€28.00
Autoflower seeds

Bruce Banner Auto®

€30.00
The Red Family seeds

Red Gorilla Girl XL Auto®

€32.00
Photoperiod-dependent seeds

Purple Punch OG®

€30.00
Autoflower seeds

Killer Kush Auto®

€24.00
F1 Fast Version® seeds

Red Mandarine F1 Fast Version®

€28.00
Autoflower seeds

Purple Punch OG XL Auto®

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€32.00

A Brief History of Cannabis in the U.S.

Cannabis arrived in the United States centuries ago with European colonizers who introduced hemp as an essential resource. This material was used to produce ropes, textiles, paper, oils, and medicines. Even the sails, flags, and maps of the caravels used by Christopher Columbus to discover America were made from hemp fiber. During the colonization of the American West, wagons were covered with hemp canvas, and historical figures like George Washington grew this plant for medicinal purposes.

Between 1840 and 1890, cannabis and hashish extracts were widely used in pharmacies and medical practices in both the United States and Europe, used by many doctors as treatment for a wide range of ailments. Their use even extended to veterinary medicine until the 1930s.

In the early 20th century, the U.S. government saw hemp as a promising crop. However, with the approval of the "Marihuana Tax Act" in 1937, cannabis was pushed into illegality, marking the beginning of a dark period in the relationship between this plant and humanity.

During the 1960s and 1970s, modern cannabis strains emerged, many of which came from USA strains like Northern Lights, Skunk #1, and Haze, revolutionizing the cannabis scene. American breeders took these genetics to the Netherlands, a country with more permissive laws, driving the development of seed banks. This exchange led to the hybrid seeds we know today.

In the 1990s, some U.S. states began legalizing the medicinal use of cannabis, promoting the selection and stabilization of potent hybrids. This progress paved the way for the most renowned American cannabis strains in the market today, celebrated for their quality and effects.

As of today, growing cannabis and hemp is legal in many U.S. states for recreational, medicinal, and commercial purposes. However, at the federal level, cannabis remains classified as a Schedule I substance. Despite this, medications like Marinol and Syndros, which contain THC, have been approved by the FDA, marking a significant step forward.

Moreover, the World Health Organization’s (WHO) 2017 recommendation not to regulate cannabidiol (CBD) was an important step toward global acceptance of cannabis and its derivatives. This reinforces the medicinal value of American cannabis and the preference of many users for the synergistic properties of the whole plant, thanks to its cannabinoids, terpenes, and other compounds.

The legacy of USA seeds and their impact on global cannabis culture is undeniable, and USA strains continue to set trends in the cannabis seed market for their quality, potency, and versatility.

The Great Conspiracy Against Marijuana

In the 1930s, a massive conspiracy against cannabis erupted in the United States, driven by political and economic interests serving powerful industrial lobbies. Large timber, cotton, paper, and petrochemical companies, such as DuPont, saw marijuana and hemp as a threat to their businesses. These groups launched disinformation campaigns to discredit the plant, emphasizing false negative effects and associating it with imaginary dangers.

Sensationalist media and cinema played a key role in demonizing American marijuana. Through racist propaganda, cannabis consumption was linked to Hispanic, Black, and Asian communities, portraying them as a social threat. These narratives, fueled by racial prejudice, became the cornerstone of a campaign that portrayed cannabis as responsible for crimes and immoral behavior.

In this context, the “Marihuana Tax Act” was passed in 1937, a federal law that taxed all activities related to cannabis, from cultivation and importation to sales and medical prescriptions. The severe penalties and economic burden imposed by this law drove cannabis, including USA strains, into the underground market. This marked the beginning of a systematic persecution against the plant, culminating in its classification in 1970 as a Schedule I drug under the Controlled Substances Act, enacted by President Nixon.

Decades of government-funded propaganda demonized cannabis, even affecting the perception of USA seeds that had revolutionized the genetic landscape of cannabis. However, some countries and states began to recognize its therapeutic value. In 1996, California made a historic move by passing Proposition 215, which legalized the medicinal use of marijuana, allowing patients to grow and consume the plant for therapeutic purposes.

From then on, other states followed suit, and in 2018, in addition to Washington D.C. and Colorado, many more legalized cannabis for recreational use. This marked the resurgence of American marijuana, now driven by scientific research and technological advances highlighting the therapeutic properties of CBD (cannabidiol).

Today, the American cannabis industry is leading a new era of innovation, driving the development of genetics rich in CBD and THC, combining the best of cannabinoids. With the rise of American seeds and the global expansion of USA strains, a genetic advancement boom is expected to continue defining the future of cannabis worldwide.

The Impact of Sam the Skunkman on the Cannabis Industry

David Watson, better known as Sam the Skunkman, is a key figure in the history of American marijuana and its global influence. This Californian grower has been one of the greatest promoters of the development and dissemination of genetics that have revolutionized the cannabis market.

In 1985, Sam brought with him from California to Amsterdam a box containing thousands of cannabis seeds that held the genetic legacy of the Sacred Seeds collective. Among these seeds were iconic strains such as Skunk #1, Original Haze, California Orange, Early Pearl, and Hindu Kush, all representative of the excellence of USA strains. These seeds marked a turning point, with Skunk #1 being the first hybrid cannabis strain marketed in the Netherlands.

The arrival of these American genetics in Amsterdam coincided with the permissive Dutch legislation, which allowed the creation of the world's first seed banks and established the city as an epicenter for cannabis growing and consumption. Strains like Skunk #1, Northern Lights, and Haze became benchmarks for hybridization, providing essential traits such as fast flowering, compact buds, and high trichome density. These qualities made USA seeds an indispensable choice for genetic improvement and adaptation to indoor growing.

Sam the Skunkman claims to have introduced Haze seeds to the Netherlands thanks to the Haze brothers, who had developed this strain in California. Through his work and that of Dutch pioneers, USA strains managed to conquer Europe, opening doors to growers seeking more potent genetics adapted to different conditions.

Sam’s influence was not without controversy. Some theories circulate online about possible ties to the DEA (Drug Enforcement Administration), but this has not overshadowed his role in transforming the cannabis industry. His legacy, based on the exchange of genetics and innovation, lives on in the American marijuana strains that are now part of the most prestigious catalogs.

Sam the Skunkman and USA strains forever changed the cannabis landscape, demonstrating the impact of American genetics on the global improvement and expansion of this plant.

Famous American Cannabis Strains Known Worldwide

The development of modern American marijuana strains began in the United States during the 1960s and 1970s. It was during this time that Californian surfers, the hippie and underground movement, and American soldiers returning from their travels through Asia, Africa, and Latin America brought with them landrace genetics, also known as pure local cultivars. These original strains became the foundation for the development of modern hybrids, laying the groundwork for what we now know as USA strains.

The classic genetics and landraces collected from various regions of the world were hybridized, either intentionally or accidentally, giving rise to iconic American marijuana strains. These hybrids revolutionized global cannabis culture, positioning the United States as a benchmark in cannabis genetic innovation.

 

Kush 

Kush strains have their roots in the Hindu Kush mountain range, a mountainous region spanning Afghanistan, northwest Pakistan, and northern India. These plants are characterized by their Indica structure, with strong stems, compact branches, and dense, resinous buds, making them ideal for short flowering cycles.

During the 1960s and 1970s, surfers, hippies, and American soldiers brought Kush seeds from Asia to the United States. This cultural and genetic exchange marked the beginning of the selection and hybridization of these strains on American soil, renowned for their potency and uniqueness.

One of the most iconic strains of the American Kush family is OG Kush, developed in California in the 1990s. With a lineage that combines Chem Dawg and a cross between Lemon Thai and Old World Paki Kush, OG Kush became one of the most sought-after strains on the market. Its name, "OG," stands for "Ocean Grown," a nod to its Californian origin. 

San Fernando Lemon Kush® (SWS62) is an outstanding USA strain that inherited the intense lemon essence of the original OG Kush, alongside the magnificent Purple Punch OG® (SWS93) and Killer Kush Auto® (SWS56), both flavorful and aromatic strains with Kush genetics originating from the USA.

Kush Characteristics

  • Lineage from the Kush Family: Afghani, Pakistani and North Indian
  • Effects: Relaxation, euphoria, happiness, sleepiness
  • Aromas: Sweet, fruity, woody, spicy, coffee, lemon, cypress

 

Skunk

Skunk is one of the most iconic and widely grown cannabis strains in the world. Developed in the early 1970s in California by the Sacred Seeds collective (of which Sam the Skunkman was a member), this strain is a polyhybrid that combines landrace Sativa genetics like Acapulco Gold and Colombian Gold with an Afghan Indica landrace.

In 1985, Sam the Skunkman brought Skunk #1 and other Californian genetics to Amsterdam, making it the first hybrid strain to be commercialized in the Netherlands. This transition marked a turning point in cannabis culture and established USA seeds as a global reference. Skunk #1’s traits, such as fast flowering, dense and compact buds, and high trichome production, made it ideal for hybridization and the genetic improvement of other strains.

Today, Skunk remains one of the most recognized USA strains, thanks to its ability to thrive in both indoor and outdoor grows, and for offering a perfect balance of potency, flavor, and yield.

Our renowned and award-winning Green Poison® (SWS14) and its sister strains Green Poison Auto (SWS30), Green Poison XL Auto (SWS71), Green Poison F1 Fast Version (SWS41) and Red Poison Auto (SWS39), are among our finest representatives of this legendary genetic family.

Other strains in our catalog that feature Skunk genetics include Red Mandarine F1 Fast Version® (SWS79), Bloody Skunk Auto® (SWS44), Sweet Skunk Auto® (SWS34), Sweet Skunk F1 Fast Version® (SWS54), Sweet Cheese® (SWS19), Sweet Cheese Auto® (SWS33), Sweet Cheese XL Auto® (SWS77) and Sweet Cheese F1 Fast Version® (SWS42).


Skunk Characteristics

  • Lineage from the Skunk Family: Afghani, Acapulco Gold, Colombian Gold
  • Effects: Creativity, energy, imagination, relaxation
  • Aromas: Skunk, earthy, nutty, sweet, arugula

 

Haze

During the 1960s and 70s, the United States saw an influx of tropical Sativa strains from regions such as Southeast Asia, Colombia, and Mexico. These strains, known for their long flowering times, intense aromas, and stimulating effects, came to be generically referred to as Haze.

The Haze strain was developed in the mid-1970s in Corralitos, a small town in Santa Cruz County, California, by the famous “Haze brothers.” These breeders and collectors of cannabis genetics dedicated themselves to sourcing and crossing the best Sativas they could find, originating from countries like Mexico, Colombia, India, and Cambodia. From their work came Haze and Original Haze: strains that mainly incorporated Colombian and Mexican genetics and quickly became foundational pillars of modern USA strains.

In the same town, just a few streets away from the Haze brothers, lived Sam the Skunkman, a member of the Sacred Seeds collective. He received seeds from them and later brought these genetics to the Netherlands. Most of the Haze seeds and Haze hybrids we know today likely stem from Neville Schoenmakers, founder of the Dutch seed bank The Seed Bank of Holland, who specialized in refining and distributing these genetics worldwide. Both Sam and Neville played a crucial role in expanding USA seeds and establishing them as global benchmarks.

At Sweet Seeds®, we have a very special selection of Haze, our Sweet Amnesia Haze® (SWS72), released in 2018, which is also available in its autoflowering version, Sweet Amnesia Haze XL Auto® (SWS57)

Haze Characteristics

  • Lineage from the Haze Family: Thailand, Mexico, India, Colombia
  • Effects: Energy, euphoria, relaxation, happiness, creativity
  • Aromas: Incense, wood, sweet, lemon

 

Northern Lights

Northern Lights is one of the most iconic and recognized Indica strains of all time. According to cannabis expert Jorge Cervantes, this legendary strain was developed in the United States in the late 1970s by a grower known as “The Indian,” who preserved 11 numbered female clones, from #1 to #11. Among them, Northern Lights #5 stood out as the most valuable and widely used, becoming the foundation for many modern cannabis genetics.

In 1985, these 11 clones were brought to the Netherlands by Nevil Schoenmakers, founder of The Seed Bank of Holland, the first Dutch seed bank. There, Northern Lights was crossed with other genetics, such as Haze, giving rise to legendary hybrids like Northern Lights #5 x Haze. Although the original Northern Lights genetics may have been diluted through countless crosses, its legacy lives on in many of today’s American and Dutch cannabis strains.

 

Northern Lights Main Characteristics

Northern Lights is known for producing robust, bushy plants with abundant side branches and large, dense, resinous buds. These traits made it a perfect choice for hybridization, especially for strains suited to indoor growing. Its main features include:

  • Fast flowering: With a flowering period of no more than two months, it’s ideal for growers seeking quick results.
  • Short internodal distance: Promotes compact growth.
  • High trichome production: Results in potent, resin-heavy buds.

 

Thanks to these characteristics, Northern Lights contributed to the development of legendary hybrids like Super Silver Haze, Sour Diesel, and Shiva Skunk, cementing its place as one of the most influential USA strains in cannabis history. 

Northern Lights Characteristics

  • Lineage from the Northern Lights Family: Afghani, Thai
  • Effects: Relaxing, sense of well-being
  • Aromas: Woody, earthy, sweet, spicy
  • Flowering: Usually features a flowering stage of no more than two months

Northern Lights is not only a cornerstone of American cannabis genetics but also a lasting icon in global cannabis culture. Its genetics remain a benchmark for breeders and growers seeking high-yielding strains with deeply relaxing effects.

 

Chem Dawg, Diesel, and OG Kush

Chem Dawg, Diesel, and OG Kush are among the most influential and recognized genetics in cannabis history. These USA seeds, primarily developed in the United States during the 1990s, have given rise to an extensive family of hybrids that have taken the global market by storm thanks to their potency, aroma, and versatility.

The Origin of Chem Dawg

The Chem Dawg lineage traces back to a small garden in Colorado, where a grower nicknamed "The Old Man" spent years crossing the best plants from his harvest to develop this iconic strain. It is believed that its ancestors included Indica genetics such as Kush or Northern Lights, crossed with Mexican or Thai Sativas. In the early 1990s, this genetic line made its way to Massachusetts, where a few seeds recovered from a package of Chem Dawg cannabis were germinated. One of these seeds produced the original elite clone that would become the foundation of the Diesel family.

The Diesel Family Evolution

On the East Coast, growers began crossing Chem Dawg with local genetics like Massachusetts Super Skunk and Sensi Northern Lights, leading to hybrids such as Original Diesel and later Sour Diesel, the result of accidental pollination. Sour Diesel quickly gained fame for its powerful aroma and energizing effects.

Meanwhile, on the West Coast, a Chem Dawg cutting made its way to California, where growers like “Putz” crossed it with strains such as Lemon Thai and Old World Paki Kush, giving rise to the legendary OG Kush. Known for its versatility and balanced effects, OG Kush went on to become the base for hybrids like Bubba Kush and Purple Kush, which remain cornerstones among modern USA strains.

Impact in Europe

By the late 1990s, Diesel genetics made their way across the Atlantic and reached the hands of the Dutch seed bank Soma Seeds. There, hybrids such as New York City Diesel (NYC Diesel) were created, blending Sour Diesel with Afghan and Hawaiian strains. These new hybrids not only conquered Europe but also played a key role in inspiring the development of countless new genetics worldwide.

 

Sweet Seeds® and the Chem Dawg – Diesel – OG Kush Lineage

All the CBD-rich strains in the Sweet Seeds® catalog contain genetics from the Diesel–Chem Dawg family, as the high-CBD clones in our bank of mother plants come from this lineage.

Honey Peach Auto CBD® (SWS64) from Sweet Seeds® is one of these exceptional strains with Chem Dawg and Diesel genetics that you should include in your cannabis grows. This magnificent strain combines the well-known potency and delicious Diesel and Chem Dawg aroma with a high CBD ratio.

Additionally, our catalog includes the renowned NYC Diesel® (SWS06), another strain developed from the NYC Diesel lineage.

Other strains from our catalog featuring genetics from the lineage of Chem Dawg - Diesel - OG Kush include Monster Maker® (SWS117), Permanent Jealousy XL Auto® (SWS115), Jet Fuel Mandarine XL Auto® (SWS109), Cream Mandarine Auto® (SWS29), Cream Mandarine F1 Fast Version® (SWS50), Sweet Pure CBD® (SWS65), Killer Kush F1 Fast Version® (SWS52), Killer Kush Auto® (SWS56), Sweet Gelato Auto® (SWS76), Jealousy Z XL Auto® (SWS108), Bruce Banner Auto® (SWS91), Sweet Mandarine Zkittlez F1 Fast Version® (SWS105) and San Fernando Lemon Kush® (SWS62).

 

Abbreviated Diesel family lineage trunk:

East Coast:
  • Original Diesel = Chem Dawg x (Sensi NL x Mass. Super Skunk)
  • Sour Diesel = Original Diesel x DNL
  • DNL = (RFK Skunk x Hawaiian) x NL
  • RFK = Skunk disappeared in 90-91
  • Giesel = Chem Dawg x Mass. Super Skunk
  • Snowdawg or Super Snowdawg = Chem Dawg x (Mass. Super Skunk x Humboldt snow)
West Coast:
  • OG Kush = Chem Dawg x (Lemon Thai x Old World Paki Kush)
  • West Coast Dog = Chem Dawg x Humboldt Indica
  • Bubba Kush = OG Kush x (West Coast Dog x Old World Paki Kush)
  • Purple Kush = Grandaddy Purple x OG Kush
Europe:
  • Soma NYC Diesel = Sour Diesel x [Sour Diesel x (Afgani x Hawaiian)]
  • Ice Cool = NYC Diesel x (NYC Diesel x Nafarroa Diesel) Feminized Genetic  

 

Blueberry

Blueberry is one of the most iconic Indica strains in the world of cannabis, renowned for its sweet, fruity flavor, vibrant blue and reddish hues, and powerful relaxing yet euphoric effects. This American-born strain gained international acclaim in 2000 when it was awarded Best Indica at the High Times Cannabis Cup, solidifying its status as one of the most cherished genetics on the planet.

Origin and Development of Blueberry

Blueberry was created and developed in the United States during the 1980s and 1990s by legendary Canadian breeder DJ Short. A passionate grower with a background in biology and psychology, DJ Short combined exotic cannabis genetics with careful selection to shape what would become the Blueberry strain and the wider Blue Family.

To develop Blueberry, DJ Short worked with a selection of pure Sativas from Colombia, Panama, Mexico, and Thailand, as well as Afghani Indicas developed in California and Oregon. The key genetics involved in its creation include:

  • Highland Thai (Juicy Fruit Thai): A pure Thai Sativa known for its fruity aroma.
  • Purple Thai: A hybrid between Chocolate Thai and Highland Oaxaca Gold (H.O.G.), a Mexican Sativa.
  • Afghani Indica: Contributed its compact structure and deeply relaxing effects.

Due to legal restrictions in the United States, DJ Short moved to Europe in the 1990s, bringing his seeds with him. In the Netherlands, a country renowned for its tolerant cannabis laws, he continued refining Blueberry, which quickly gained popularity across Europe and worldwide.

 Strains from our catalog containing Blueberry genetics include Cream Caramel® (SWS04), Cream Caramel Auto® (SWS22), Cream Caramel F1 Fast Version® (SWS40), Black Cream Auto® (SWS37) and Cream Mandarine Auto® (SWS22).

Blueberry Characteristics:

  • Lineage from the Blueberry Family: Afghani Indica, Purple Thai, Highland Thai Sativa
  • Effects: Relaxing, sense of well-being, euphoria, drowsiness
  • Aromas: Blueberries, berries, sweet, earthy

 

Trainwreck

Trainwreck is another legendary American cannabis strain, known for its potency and its origins in Humboldt County, Northern California. This iconic strain blends Afghani Indica genetics with Mexican and Thai Sativas, offering a balanced mix of uplifting and relaxing effects that have made it a staple among USA strains.

The exact origins of Trainwreck are shrouded in mystery, and its name has inspired a number of stories. One of the most popular versions tells of a pair of brothers who were growing cannabis near the site of a train crash, hence the name. Another theory suggests that the name refers to the strain’s intense, hard-hitting effect, often described as a “train wreck” due to its overwhelming potency.

Our catalog includes an autoflowering strain with Trainwreck lineage: Pineapple Slush XL Auto® (SWS114) - an autoflowering strain that can reach THC levels of up to 28%.

"Super Strong" Strains in the United States

In the United States, the “bigger and stronger” mindset is also reflected in the cannabis culture, where breeders have developed some of the world’s most potent and flavorful American cannabis strains. This blend of history, innovation, and passion has led to the creation of modern genetics like Girl Scout Cookies and Gorilla Glue, now globally renowned for their quality, flavor, and high THC content.

Girl Scout Cookies

Girl Scout Cookies is one of the most iconic USA strains, developed in the late 1990s near San Francisco by a group of breeders known as The Cookie Family. Focused on creating sweet-flavored strains with powerful effects, this group doesn’t participate in cannabis cups and they also choose not to promote their work. They grow exclusively for personal enjoyment and medical cannabis users in California.

To create Girl Scout Cookies, they selected a Kush-type strain nicknamed “F1” and crossed it with Durban Poison, stabilizing the resulting hybrid. This hybrid was then crossed with another legendary Kush, known as OG Kush. Although it was likely not the original OG Kush. The result was a unique strain with a sweet, earthy aroma and subtle notes typical of Kush strains.

Gorilla Glue

Another one of the “super strong” USA seeds is Gorilla Glue, famous for reaching THC levels above 25%. This strain was created accidentally when California grower Joesy Wales was working with Diesel genetics such as Chem Sis. Due to environmental stress, some plants developed hermaphroditic flowers and pollinated a Sour Dubb female, resulting in unplanned seeds.

Initially, these seeds were almost discarded, but Joesy’s partner Lone Watie decided to keep them. Later, after planting them, they discovered the exceptional quality of the offspring. Among the resulting phenotypes, they selected Gorilla Glue #4, known for its intense potency, abundant resin, and unmistakable aroma.

Gorilla Glue #4 was later hybridized with a Chocolate Diesel male, and the resulting hybrid was backcrossed three times with Gorilla Glue #4. The final genetic makeup consisted of 93.75% Gorilla Glue #4 and 6.25% Chocolate Diesel. This meticulous process made Gorilla Glue one of the most powerful and resinous strains on the market.

At Sweet Seeds®, we’ve developed a hybrid of these two champion strains (Gorilla Glue x Girl Scout Cookies): Gorilla Girl® (SWS74). This strain delivers an extremely potent effect, with very high THC levels ranging from 20% to 25% under optimal growing conditions, and some specimens may even surpass these levels.

For a wider range of choice, we also offer in our catalog other strains with Cookies genetics, such as Sweet Gelato Auto® (SWS76), Gorilla Girl XL Auto® (SWS82), Gorilla Sherbet F1 Fast Version® (SWS98), Black Muffin F1 Fast Version® (SWS111), Tropicanna Poison XL Auto® (SWS95), Red Hot Cookies® (SWS83), Tropicanna Poison F1 Fast Version® (SWS85) and Red Gorilla Girl XL Auto® (SWS89).

What Makes American Cannabis Seeds Special?

American cannabis seeds stand out for their unique characteristics, setting them apart from other genetics and making them global benchmarks.

These strains are often known for extremely high THC levels, driven in part by the American market’s appetite for increasingly intense effects. Strains like those from the Cookies family, Gelato #33, and Gorilla Glue can exceed 30% THC. In addition, breeders are incorporating less common cannabinoids such as THCV (energizing) and CBN (sleep-inducing), offering more tailored and therapeutic effects.

American strains are also known for their complex aromas and flavors, going far beyond the classic Skunk or Haze profiles. Tangie delivers bright citrus notes, Cereal Milk brings a sweet vanilla-like flavor, and OG Kush features a sharp fuel-and-lemon combo. These unique terpene combinations are the result of advanced breeding techniques and innovative crosses, such as Runtz (Zkittlez x Gelato).

American cannabis plants are renowned for producing buds covered in trichomes, often appearing frosted or “white” with resin, making them ideal for extractions: a field in which North America is also highly advanced. Many strains also produce large, dense, and heavy flowers. For example, Blue Gelato #41 can yield over 2 kg per plant outdoors, while Gushers (Gelato #41 x Triangle Kush), with its fruity flavor, can reach 700 g outdoors with little effort.

Structurally, these strains often have a more sativa-leaning growth pattern, which means they don’t typically form one massive central cola like many indica-structured European strains. Instead, they produce multiple quality buds across their lateral branches, allowing for higher yields while reducing the risk of botrytis mold infestations inside the dense central flowers.

The tolerant and permissive cannabis regulations in states like California have propelled the development of groundbreaking genetics. This open environment has fostered unprecedented cannabis research and experimentation, giving rise to legendary strains like Girl Scout Cookies and Gorilla Glue, two genetics that combine immense potency with gourmet flavor profiles on another level.

As a result of this movement, European seed banks like Sweet Seeds® have been able to evolve and integrate these modern genetics into their catalogs, creating true powerhouses like Monster Maker® (SWS117), Red Hot Cookies® (SWS83), and Gorilla Girl® (SWS74).

While cannabis growing does require some know-how (like pH control and irrigation), many American strains offer versatility and ease of growth. For example, Papaya Zoap Auto® (SWS107) is compact and ideal for small spaces, while Honey Peach Auto CBD® (SWS64) is designed for medicinal users thanks to its balanced THC-CBD ratio. Legalization efforts across various U.S. states have also encouraged open research and the development of therapeutic cannabis, supporting the search for strains that can relieve pain and discomfort.

Main Advantages of Growing USA Strains

American cannabis strains offer unique advantages that make them the top choice for expert growers and passionate enthusiasts alike. But what exactly makes these genetics so special? Here are the key benefits:

Potency:

As we've mentioned, most American strains feature high cannabinoid levels, particularly THC. These genetics aren’t just for those seeking powerful effects: they’re also valuable for therapeutic purposes. We're also seeing the emergence of less common cannabinoids gaining traction, such as the well-known CBD and the increasingly appreciated THCV, among others.

Flavor:

American cannabis strains boast exotic and complex terpene profiles. The range is extensive, with flavors and aromas spanning from fruity sweetness and earthy Cookies tones to exotic citrus and the much-loved fuel and Diesel notes. If you're looking to fully experience the entourage effect, American strains have all the components to make it happen.

Yield:

Both in terms of flower density and trichome production, American strains guarantee high yields. Their buds are dense and heavy, coated in a thick layer of trichomes: this is their signature look and calling card. This makes them ideal for extractions like rosin, thanks to their high return and top-tier resin quality. Another upside is their bud structure: instead of producing a single massive central cola, these cannabis strains usually have more evenly distributed buds, which helps prevent mold issues such as botrytis.

Adaptability:

Thanks to meticulous breeding and selection, many once-finicky American genetics have been domesticated and optimized for ease of growing. Today, it’s easier than ever to achieve high-quality crops with minimal effort, making these strains user-friendly even for beginners.

In Europe, breeders have taken advantage of this progress to create new, stable hybrids that combine the best traits from both continents. As a result, we now have stronger, more stress-resistant cannabis cultivars and a much more diverse autoflowering market, thanks to these innovations.

Medicinal Uses:

As mentioned, the high cannabinoid content and targeted selection in these strains make them an excellent tool for therapeutic use. Conditions such as chronic pain, appetite loss, insomnia, or stress can now be managed with the mindful use of American cannabis genetics. Even their ability to stimulate the mind or promote relaxation is considered medicinal by many, not to mention the creative and recreational effects these strains are famous for.

 

In conclusion, a big part of the success of USA strains comes from their response to consumer demand, amplified by media exposure and cannabis culture online. Let’s be honest: growing fresh genetics from the U.S. not only enriches your strain collection, but it also helps you stand out as a more experienced or knowledgeable grower within the cannabis scene. Even the aesthetics of seed banks, packaging, and consumer identity are heavily influenced by U.S. trends and styles.

What Are the Differences Between American and European Cannabis Genetics?

The differences between cannabis strains developed in the U.S. and Europe are clear and they range from genetic focus to practical applications. American genetics stand out for their innovation and potency, while European genetics prioritize stability and adaptability. The U.S. leads in high THC content and exotic terpenes, while Europe dominates in CBD-rich strains and efficient growing techniques. Both regions contribute to a diverse global market, where the choice depends on your goals: a unique sensory experience (U.S.) or reliable and therapeutic harvests (Europe).

Generally speaking, classic American strains tend to have a more Sativa-leaning profile, while European strains often lean toward Indica dominance. However, this isn’t a hard rule and, in fact, Europe has also produced some excellent Sativa strains. Today, breeders on both sides of the Atlantic are combining genetics from both regions, creating next-generation hybrids of outstanding quality.

In the U.S., imported landraces from Mexico, Colombia, or Thailand were refined to enhance potency and rare flavor profiles, resulting in icons like Chemdawg, Runtz, or Permanent Marker. Meanwhile, Europe has focused more on stabilizing crosses and adapting them to local climates, giving rise to classics like White Widow, Super Skunk, or Green Poison® (SWS14).

When it comes to flavors and aromas, European strains typically offer a more traditional terpene palette: sweet, earthy, piney, musky, or Skunk-like notes. In contrast, North American strains frequently feature tropical fruits, candy-like tones, or fuel/gasoline aromas that are incredibly intense and unique.

A major area where Europe excels is in autoflowering strains. Thanks to long-term breeding efforts led by seed banks like Sweet Seeds®, European autoflowering strains are usually ahead in terms of stability, performance, and overall quality.

Lastly, one cannot ignore the fact that the North American market is highly selective, pushing breeders to create unique and exclusive genetics through disruptive, non-standardized crosses. Many U.S. seedbanks release limited-edition strains that disappear quickly, helping create a mythos around them: sometimes seen as the “Holy Grail” of cannabis.

However, there’s a downside: these crosses can be less stable, with increased chances of hermaphroditism and reduced uniformity, which is rarely the case with carefully refined European genetic lines.

Discover the Best-Selling American Seeds at Sweet Seeds®

Before you go, if you are unfamiliar with some of the strains that we have mentioned, we invite you to explore the exclusive collection of American genetics at Sweet Seeds®. Some of our most popular choices include: Tropicanna Poison F1 Fast Version® (SWS85), Gorilla Sherbet F1 Fast Version® (SWS98), Runtz XL Auto® (SWS88), and Red Gorilla Girl XL Auto® (SWS89).

Hasta la vista, baby!

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