You know the saying, “If I can do it, you can too!”? I don’t know about you, but my Mom and Dad sure did echo that sentiment to me growing up. It comes as no surprise, then, that my early years of growing cannabis started right in their backyard. I started growing cannabis outdoors in Maine in 2012. It was the early days of medical marijuana legalization in the great state of Maine, and I found myself between careers, having moved back to my roots with a vested interest in the blooming cannabis industry in Maine. Legality was a gamechanger for me - bringing to life dreams and ideas of cannabis as a career. I was young, opportunistic, and excited for the support of my friends and family; starry eyed at the thought of my professional career crossing over into one of my very favorite pastimes.

I embarked on my first cannabis growing adventure with the direct support and guidance of our very own Beth and Siobhann. My backyard was right around the corner; the Maine Clone Company growing space inside, mine being outside. It’s funny - the core principles and practices of growing remain the same for both indoor and outdoor; but the outdoor environment brought a factor to the table that I simply, albeit naively, did not predict.

The Maine climate proves brutal, not at all for the faint of heart, and I truly believe offers what can only be described as an intense hazing experience in outdoor growing. We were committed to learning, down for nothing less than 101% effort in doing so, and boy did we learn the hard lessons in those early days.  I spent several years growing in my familiar childhood backyard, learning and improving and harvesting better cannabis year after year.

When my wife Siobhann and I bought our home together in 2016, we took the opportunity to secure a property that allowed for my home hobby to truly flourish into our professional careers in the cannabis industry today. We have delighted in testing Dirty Bird Genetics outdoors for the past few years - both the genetics chosen for their breeding projects, and the resulting cultivars.

As I reflect on my most recent outdoor harvests now that we both have years of solid experience under our belts, the lessons learned in my first few outdoor seasons have certainly stood the test of time, remaining steadfastly essential for a successful outdoor harvest.

Getting the Strain Right - Strain Selection for a New England Outdoor Grow:

Flowering Time: A healthy cannabis plant can withstand 1 frost, maybe 2, some may even prefer a light frost to finish up nicely; however, no plant can withstand several frosts, ongoing freezing temps, and simply not enough hours of daylight. I would recommend steering away from any plant that finishes later than early-mid October in Northern regions, and one would have to make sure that was a truly hardy plant! Late September-early October is a sweet spot for Northern and New England climates. Late September runs the risk of not quite gaining the bud density after a particularly humid summer, but by and large a strain with that flowering time would harvest well! A strain referencing a 7-8 week flowering time will yield the most successful harvest outdoors, 8-9 is a decently safe range; tread much more critically with strains listing 9+ on the approximations for flowering time.


Resistance: With only flowering time in mind, a wide variety of strains offer the opportunity for an outdoor harvest; however, select strains can really stand out from the crowd through resistance to common outdoor problems such as mold, mildew, septoria, and pests. Plant morphology, which I will speak to later, plays a huge role in resistance(s). It is inherent to the genetic composition of some strains to be naturally resistant to disease and pests, which truly sets those cultivars apart when selecting a strain for outdoor growing. In consideration of resistance, the pool of strains narrows significantly, albeit necessarily. 


Seed Type: For the beginner grower, I would caution against putting regular seeds in your garden without sex testing. A burst pollen sack outside is infinitely more detrimental to other plants in stages of flower than a similar situation inside, simply due to natural winds and air movement. All that being said, feminized seeds do still require ardent checking for sex sites, but the risk is much less. I always suggest checking plants as frequently as possible - checking for signs of plant sex sites every day, multiple times at the start of flower, if possible.

Fem: Pistils start to show
Fem: Pistil and stigmas stack
Male: Pollen sacks bursting

Location: know where you are growing, and plan accordingly. Do you live where your plant will live? Is your backyard particularly windy? No protection from the elements? Shade during certain times of the year? All of these are important questions to ask yourself when considering if you have the right space to grow plants, and in which way to grow them. Open air or greenhouse? In pots, raised beds, or in the ground? The size of the space, as well as the environment it lends itself to are important considerations. Open air requires a more sturdy plant, or a more skilled staker. Open air provides more air flow and circulation, but also has zero protection against the elements. Greenhouses do run the risk of pests and mildew running rampant, but I would venture the pest situation likely would not be any worse - just different. The bud rot, however, is much riskier in a greenhouse - maximum air flow required! Greenhouses with open bottoms and ends, and solid upper ventilation that allow for a combination of raised bed, potted plants, and in ground planting is absolutely a great set up; however, open growing is where I have proven most experienced and effective. It seems most reasonable and wide spread of a method - inside of a fence, in some combo of potted and in ground. When growing this way, sturdiness and hardiness becomes a key consideration, as does flowering time. Sun and shade shifting over the changing seasons is another important consideration. If you find the plants will largely be in shaded areas if planted in the ground, I urge you to plant in pots and move the pots around the space accordingly. If planting in pots is necessary, be sure to transplant early, in a medium with solid aeration, and in a size that is manageable for shifting with the sun’s exposure. I use a wagon to move my 10 gallon pots around! 


Low Maintenance, High Return: Plants that respond well to an uncontrolled environment are imperative - not requiring proactive preventative measures or round the clock monitoring, but rather thriving naturally without needing additional training. An uncontrolled environment calls for a plant that does not require much controlling. Plant morphology that prunes and trains itself, forming strong sturdy lateral branching, wide internodal spacing to allow for airflow, and not a leafy vegetative presentation during bloom; naturally suited to the environment. If size and space is a concern, it is important to note this and plan accordingly for when and where to transplant and top. If you need to top plants, or train plants with low stress techniques, it is important to keep in mind that stressors should be spaced out - as in I would not suggest transplanting when the daylight hours are set to start to shift into flower, as that is multiple stressors compounded.


Eagle Eye: As a plant nears the end of the flowering cycle it is prudent to check as frequently as possible for any signs of bud rot. Any signs of dying leaves or bud, and the area must be cut out of the plant entirely; bud rot is ruthless and lethal, and spreads rapidly when unchecked. Pests such as spiders also have a way of burrowing into buds and forming webs - be sure to check and remove any pests daily. Powdery mildew can also spread quickly, ruining otherwise harvestable buds. It is, of course, important to do these things at every stage of plant growth, but it becomes that much more imperative due to the lack of visibility that occurs as a plant fills in and matures for harvest. Pulling the plant back and looking in the way pictured below is great for visibility. Be careful not to damage while doing so, though!


Timing is everything: Warm temperatures do not mean it is time to put your plants out! If you start your seeds inside, which I do recommend simply for sprouts to not get eaten by slugs or birds, it is important to keep the seedlings under a light to allow for enough hours of exposure to remain in vegetative growth stage. If the plant is put outside too early in the season the plant will either fully flower, preflower and then quickly revert to vegetative cycle while stunting any growth in the process, or simply die due to lack of light and probable cooler evening temps. In Maine I choose to put my plants outside in the first week of June. Any earlier than Memorial Day is just asking for preflowering or chilled roots troubles! Expect plants to naturally start flowering in mid-August when the daylight exposure starts to shift to fewer than 15 hours of daylight. Full flowering should be in swing no later than the third week of August!


To cut, or not to cut: As the season comes to a close, monitor frost and be sure to harvest wisely. If the plant is near harvest - cloudy trichomes but not yet any amber - I normally make the judgment call to harvest the plant rather than run the risk of bud rot following a particularly strong frost. Once you’ve decided that a plant is finished, the urge is always there to simply go ahead and harvest the whole dang plant. I find that outdoors it might make sense to harvest a plant in rounds, where the top buds are harvested and the remainder of the plant is left a bit longer to finish up. I find this is a solid practice for plants with very large or dense top colas that clearly have cloudy and amber trichomes, and run a bit higher of a risk of bud rot due to dew and exposure. I encourage use of a scope to ultimately base the final decision on a combination of the environmental factors listed above and the buds’ trichome count and color!

Close-up of a hand holding a "Dirty Bird Genetics" label next to a flowering cannabis plant with purple and green leaves outdoors, proudly showcasing The Brunch S1 (F).

The above suggestions and considerations are not meant to overwhelm or deter, but to rather help and narrow down what is a wide variety of quality cultivars! Cannabis seeds come in many shapes, sizes, flavors, colors, you name it. Over the years some have proved much more suitable to outdoor conditions than others, and it is by asking the questions and following the considerations above that growers may select the best strain for their early growing seasons, and beyond!

At this point I have a solid list of top strains that I love to grow outside, and would recommend to any grower. My absolute favorite of all time is the Dirty Mimosa. I took the time to put together a collection for our readers. I absolutely think attentive beginners would enjoy a successful harvest from any one of the strains on my list!

Check out some of my Maine Outdoor Selections below!


This season I am most excited to grow the Roadside Haze outside, which was just released this year and is a cross between two of Dirty Birds strains that do well outdoor; the Sour Lime Haze and Skunch!! I am also super pumped for the Dirty Mimosa Bx2 and CANNOT WAIT to grow some new D.Mim genetics outside a third season in a row!

Looking forward to another Maine Outdoor season!

dirty mimosa cannabis seeds by dirty bird genetics

Cheers!!


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.