NASC Journal

From Seed to Smoke: Insights, Inspiration and Dank prose directly from the NASC team

The following collection of recommendations was sourced straight from the minds (and gardens) of some of our most sought after US Breeders: Twenty20 Mendocino, Brothers Grimm Seeds, Dirty Bird Genetics, Humboldt Seed Company, and Sticky Finger Seeds.

Please enjoy!


Breeder – California, USA


Notes from Adam, Owner

Twenty20 Mendocino

Twenty20 Has a deep rooted connection to outdoor cultivation.  Our origins date back to the prohibition era of cannabis in Northern California and have transcended through multiple iterations of the murky waters of legalization.   We pride ourselves on our relentless support of R&D and our continual desire to never stop pushing the envelope as we evolve with the ever-changing demands of the cannabis industry. In 2024 we expanded to Michigan with a full time facility dedicated to R&D and breeding.  This move, coupled with our pre-existing relationship with large farms in the state has bolstered our ability to selectively breed at a scale never seen before. We are proud to say that we have a multi year relationship as the sole genetics provider for one of the largest farms in the US, with over 300,000 plants and a canopy size of over 200 acres.  As the fungal pathogen Septoria has been rampantly devastating outdoor cannabis farms throughout the country, our well established relationships with large farms has enabled us to quickly breed resistant cultivars while continuing to keep our sights on yield, potency, hardiness, and mold resistance.  Our recent development of a new line of Hybridized Earlies has further fostered our relationship with outdoors farmers by providing them with a lineup of September ripening cultivars that enable farms to beat the cold, beat the fall and beat the odds. If there is one promise we can make, Twenty20 will never stop working at chasing the ever evolving needs of farms, home growers, and the cannabis community.

Featured Recommendations:


Snow-G by Twenty 20 cannabis seeds

(Snow-G F2 #28 x Snow-G F2 #10)

by Twenty20 Mendocino


EXTREMELY uniform. full term but still harvests around October 1st, very outdoor worthy. The Snow-G is an
F-3 that had been hunted in MI for multiple generations. It is a high yield, highly resistant variety that performs very well for concentrates
(both solventless and solvent). Home run winner for almost every farm that grows them.

Twenty20 > Limonada

(Limonada # 28 x Limonada #29)

by Twenty20 Mendocino


EXTREMELY uniform. harvests early October, extremely Septoria resistant strain that was grown and hunted in MIchigan in 2023 and 2024. Limonada is more of a Sativa and will likely yield more biomass than any other variety in the entire field but the potency is a bit less. Homerun winner for almost every farm that grows them.

Early Frost Fast by Twenty20 Mendocino

(SnowG F3 Photoperiod x Honey Badger F7 Autoflower)

by Twenty20 Mendocino


Proven by a very large farm in Michigan last year and this farm plans to grow them again this year. Potency is high 20’s and ready for harvest in mid September. Out of the earliers it is the most uniform and
was the first to be harvested.


Breeder – Colorado, US


Notes from Laura, Owner

Logo for Brothers Grimm Seeds, featuring Gothic-style white text on a black background.

Old school breeding, next level genetics.

Learn more about Brothers Grimm with the NASC Cast Crew and Mr Soul on our Youtube channel!

Featured Recommendations:


Brothers Grimm Seeds Rosetta Stone

(Jack Herer female x STS-induced Cinderella 99 female)

by Brothers Grimm


Won top 10 strains in the world in high times 2018. Our highest yielding plant, our most medicinal strain, high in thcv 4.+, CBD and CBGA THC 25-30%, over 330 growers in the Australian grow off right now growing Rosetta 

Brothers Grimm Seeds Cinderella 99

(Princess x Cinderella 99 female pollen donor)

by Brothers Grimm


It has been known as the Holy Grail of Cannabis, Created by MrSoul, cerebral dreamy state, and one of the most stable breeding plants.

Brothers Grimm Seeds Apollo XX

(Genius female x Cinderella 99 female pollen donor)

by Brothers Grimm


The Apollo strain is famous because of its potent and long-lasting uplifting effects, often described as creative and mentally stimulating, similar to the Greek god Apollo who is associated with inspiration and the arts; this makes it a popular choice for users seeking a focused and energetic high. It also highest thc 31%- 33%


Breeder – Maine, US


Notes from Beth, Owner & Siobhann, Head Grower

A stylized bird skull with the words "Dirty Bird Genetics" above it on a black background.

Dirty Bird Genetics hails from the north-eastern climate of Maine, a climate characterized by one of the most challenging growing seasons in the US, and yet a climate that for decades has produced some of the best flower in the country. We take our Outdoor seriously here. If you don’t know someone who reads bedtime books to their plants for eight nerve-wracking weeks a year, then you probably don’t live in Maine. As a group of cannabis enthusiasts with deep roots in the clone industry, one of our initial goals when we first conceptualized Dirty Bird was to breed genetics that would thrive in our finicky and unpredictable climate. We saw the demand; and if they could thrive here, they could thrive anywhere in the US, we hypothesized. One thing that really set us apart at Dirty Bird is the insane genetics catalogue at our fingertips. With strong breeder relationships, we’ve pheno-hunted genetic lines for 15 years, and we’ve gotten feedback on these genetics, both indoor and out, from thousands of growers in the community around us. While we still continue on this lifelong journey of developing cultivars that are supremely viable outdoors, both commercially and for home growers, we are tremendously proud of the work we have done thus far, and eager to share it. We come to the table with experience and an unrelenting dedication to quality, transparency and integrity, and we are passionate about learning and growing with the community around us.

Featured Recommendations:


dirty mimosa cannabis seeds by dirty bird genetics

(Mimosa x The Brunch [Peanut Butter Breath x Mimosa])

by Dirty Bird Genetics


Siobhann says:

An absolute winner outdoors, as an early October finishing sativa strain. Super easy to grow and maintain, with lots of consistency across the seed population

Beth Says:

The Dirty Mimosa is my single best recommendation for outdoor grows, especially in Northern climates with a short growing season like we have in Maine. She is an incredibly early finisher, both indoors and out, and she is colorful and beautiful. It’s one of the few cultivars we’ve grown that can achieve indoor-quality flowers in an outdoor environment.

necromancer kush cannabis seeds by dirty bird genetics

(Bubba Whip! x Grease Monkey)

by Dirty Bird Genetics


Siobhann says:

Has already won 2 outdoor competitions that we know of! A NASC’s Discord picture contest – Outdoor Category and the Ohio Farmer’s Cup (outdoor indica). A combination of 2 powerful indicas – Bubba Whip and Grease Monkey – that have both excelled in Maine’s short/cold grow season.

Beth says:

The Necromancer Kush is one of the strongest testers we have, and this year, she surpassed our expectations in outdoor gardens across the country, even winning 1st place in the Indica Outdoor category at a harvest cup in Ohio. This cultivar has that classic kush structure but with great stacking, intense sugar, and amazing pine/gas terpenes. 

pine tree kush cannabis seeds by dirty bird genetics

(Grape Jelly* x Platinum Kush Breath Remix)
*Jelly Breath x Chocolate Pie

by Dirty Bird Genetics


Siobhann says:

A little more phenotypic variation than the other 2 strains, but very high quality. Very unique creamy lemon and gas/pine terps. About 50/50 purple to green ratio. Boutique quality with commercially viable yields. A stretchier plant in bloom, so while supports are needed outside, Pine Tree Kush has ideal growth for optimal airflow, especially in high humidity regions.

Beth says:

The Pine Tree Kush was one of our favorite cultivars of 2024. Her sharp and complex meyer lemon, pine, and berry terpene profile and her extremely dense, colorful bud structure make her stand out in any garden. It can handle a harsh environment and it produces high quality, colorful, terpy flowers. 


Breeder – California, US


Notes from Nat, Owner

Humboldt Seed Co Logo

Bred In Nature, Perfected By Science. For over two decades, Humboldt Seed Company has defined cannabis excellence from the heart of Northern California’s legendary growing region.At Humboldt Seed Company, quality isn’t just a priority—it’s a promise. Founded in 2001 by scientists in California, we began by breeding seeds for patients under Prop. 215 and have since expanded to serve both recreational and medical growers worldwide. With over 20 years of expertise, we are proud to be California’s largest licensed cannabis seed provider, offering a diverse selection of feminized, autoflower, triploid, and regular seeds. Our products undergo rigorous lab testing and extensive annual phenotype hunts, vetted by California’s top cannabis farmers, ensuring stable genetics, high germination rates, and exceptional performance.

Featured Breeder Recommendations:


humboldt seed co jelly donutz fem

(Jelly Donutz (#160 x #17) x Hella Jelly x White Runtz)

by Humboldt Seed Company


We specifically bred Jelly D for that candy gas terp that everyone’s loving these days! It’s made from the Emerald Cup winning cut that made Runtz go viral! 

Hella Jelly aka Jelly Rancher

(Jelly Ranger Bx3 X Notorious T.H.C. X Very Cherry)

by Humboldt Seed Company


The Candy terp strain that tests in the thirties, finishes in mid Sep. and pretty much grows itself! Resilient to many pests and pathogens H. Jelly is both a farmer fav and a flavor fav!

Close-up of a flowering cannabis plant with purple-hued buds and white trichomes, part of the Grow Your Own Garden Multipack. The leaves are green with orange pistils.

(Purple Panty Dropper x Razzle Berry)

by Humboldt Seed Company


When I created/discovered the Blueberry Muffin strain in 2009 on our NE Humboldt medicinal farm I knew it was special. A trimmer actually called out the name and it was like a light shone down upon the plant and a chorus of ganja angels sang her praises, so I grabbed some cuts lol. Anyways over the years since, we’ve engineered (naturally) Blueberry Muffin seeds that 100% breed true for that original unicorn (that’s our thing) and in the 15 years since, it’s become a beloved strain all over the planet known for it’s flavor, growing ease, early finish, and its anti-anxiety effect!!!!


Breeder – Hawaii, US


Notes from Will, Founder

Sticky Finger Seeds is a collective of Maui’s Medical Marijuana growers that have joined to breed the best medical cannabis genetics possible. Creative founder, Will Grinnell has been collecting and breeding cannabis genetics for over 48 years locally here in Hawaii and around the globe. Sticky Finger Seeds is a Cannabis genetic collective that specializes (takes pride) in growing and breeding heirloom and landrace cannabis genetics. Now closing in on five decades of cannabis farming and breeding cannabis enthusiast Will Grinnell has been seeking, trading, purchasing and collecting a variety of the best cannabis genetics possible, along with the Sticky Finger Seeds collective of heritage craft farmers and their seed collections.


Sticky Finger Seeds Hawaiian Dream

(Hawaiian Dream (50 yr Maui Hierloom x Blue Dream x Grandaddy Kush) x KY Jealousy (Ziplock Seeds ‘Sinful’ Cut Watermelon Mimosa X Jealousy))

by Sticky Finger Seeds


This plant has been pure magic since day one.  I was lucky enough to be gifted this old Hawaiian heirloom cultivar in 2010. I still use it as one of my primary parent plants for breeding as well as for current flower production. Hawaiian Dream is a monster grower (see attached pic) For me it is easier to grow outdoors in the open because it needs the space. It’s a very stable and robust plant. The name “Hawaiian Dream” has a double meaning. When I was gifted this plant in 2010 I was having serious issues with my personal garden and strains (Root Aphids!) I  had to start all over and this was the plant I used. Its success eventually allowed me to live the “Hawaiian Dream” again.

Sticky Finger Seeds Maui True Blood

(Hawaiian Dream x Royal Blood x Family Secret)

by Sticky Finger Seeds


Probably my most fun and robust entourage crosses I have made. The stability and simplicity of this cross is divine with only Hawaiian Dream and Royal Blood as the parents. These 2 cultivars created spectacular characteristics together with the Hawaiian Dream’s vitality and the Royal Blood’s vanilla terps with gas. The Maui True Blood plants will bleed a blood red sap when cut. This novelty is lots of fun and seems to add a unique brix to the plants.

(Maui ‘Ohana Secret)

by Sticky Finger Seeds


Another fun one that is a monster grower. I was super lucky to get these old Hawaiian “sock drawer” seeds and have a few pop and live. Over the past 30 years here on Maui I have had many Hawaiian friends gift me old Maui Wowie seeds that were long lost in a sock drawer or somewhere but they would never germinate. I then finally I got just a few to pop and that was the new start to the Maui Wowie legacy that we now call Maui Wowie 2.0. The parent lineage of this plant going back 60 years was entirely outdoor guerilla grow in the jungle so it is always ready to produce in a big outdoor farm.

(Hawaiian Dream x Blueberry Muffin (Humboldt Seed Co.))

by Sticky Finger Seeds


A perfect combo cross with Hawaiian Dream and Blueberry Muffin by Humboldt Seed Co. This simple cross made some magic. A very robust and large producer in the sun. This strain makes the entire neighborhood smell like a granny’s having a blueberry bake off.



Are you a personal home grower who happened upon this post? Well, that’s awesome!

Go ahead and check out more exciting outdoor cultivar recommendations sourced from staff, customers, and breeders below!


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Disclaimer: Cannabis seeds are sold as souvenirs, and collectibles only. They contain 0% THC. It is imperative that you check your state and local laws before attempting to purchase seeds, and we are not liable for what you do with seeds after receiving them. The statements on this website and its products have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. Consult your doctor before use. North Atlantic Seed Company assumes no legal responsibility for your actions once the product is in your possession and is not liable for any resulting issues, legal or otherwise, that may arise.