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The Best Outdoor Strains for 2020

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This post is all about the best cannabis strains for outdoors; it’s a selection of strains that we’ve tried and tested outdoors so that you can narrow down your search for the perfect plant without getting a random strain that might not be best for outdoor settings. Outdoor season is almost here, and it’s time to get your seeds ready! Growing cannabis outdoors is a long, tiring process at times, taking from 4 to 8 months to finish maturing depending on the chosen strain; that’s why you should always plan ahead of time and know exactly what you’re going to be growing.

We’re going to give a brief overview of some of our tried and tested favorite outdoor cannabis strains so that you don’t blindly go into growing a random strain outdoors. There are literally thousands upon thousands of different strains on the market, all of which have various different characteristics – some are resistant to excess humidity, heat, insects and many other issues, some can be harvested earlier than others, some do better with stress than others… the idea here is to pick one that has the best characteristics for a successful outdoor cannabis plant.

The Best Outdoor Strains | Indicas

Caramel 100% Feminized

The first of our favorite outdoor indicas is over 80% indica and is perfect for outdoor growing. This strain is one of our 100% fem bulk strains. It won third place in the indica category in the Farallones Cup in Cali, Colombia – Caramel 100% Feminized.

Caramel is a 90% indica strain that stands out with its high quality yields marked by an intense, pungent aroma. This strain is a great alternative for those looking to grow outdoors thanks to its early harvest; it should be ready to harvest towards the end of September, with a strong, sturdy structure and incredibly compact flowers which allow for maximum airflow regardless of how compact they are, which allows them to stay dry in humid conditions.

Barney’s Farm Peyote Cookies

This strain belongs to the well-known Barney’s Farm seed bank, which is one of the best seed banks in Europe thanks to the high quality of its strains and their genetic make-up; Barney’s farm is always trying to create incredibly high quality strains.

Peyote Cookies is an indica-dominant plant, which is almost entirely indica, and it adapts well to pretty much any environment, making it easily one of their sturdiest strains. This is thanks to its genetic make-up, which allow it to grow super strong and compact, easily capable of dealing with rain and strong winds. Its buds are similar to those of Caramel, so they can easily stay dry in humid conditions, within reason.

The Best Outdoor Strains | Sativas

Amnesia 100% Feminized

Haze strains are known for being highly resistant to humid environments thanks to its open flower structure. In this case, Amnesia 100% Fem is a great choice as a sativa strain to be grown in rainy, high humidity levels, even though it’s ready to harvest in October outdoors.

Amnesia 100% Feminized is an 80% sativa strain that has been crossed with an Afghan in order to give it a slightly faster bloom period. This plant grows into an open structure easily, growing over 2.5m without needing much care at all. Due to being a sativa-dominant strain, its structure is a bit weaker than indicas, although this allows for more flexibility; its branches should be able to easily deal with issues such as rain and wind, however we recommend training them in order to be safe. This strains’ genes allow for plenty of incredibly aromatic plants outdoors.

Gorilla Girl® by Sweet Seeds®

Ever since Sweet Seeds released this beauty a few years ago, it’s turned into one of the favorite strains of outdoor growers around the world thanks to the amazing results that it produces. The reasoning behind this is that Gorilla Girl comes from a combination between two of the best US strains of the last decade, and possibly in all of cannabis history; one of them is Gorilla Glue and the other is a Girl Scout Cookies phenotype called Thin Mint – neither of these strains need an introduction, as they are two of the most well-known strains of cannabis in the world.

If you decide to try this strain in your outdoor grow, you’ll find that it’s a sativa-dominant plant that grows quite strong, producing an open structure and strong branches that can easily deal with bad weather and the weight of its hefty buds. When grown at the start of the season and in the ground it can easily grow up to 2.5m tall, producing almost 1kg per plant. It should be ready to harvest towards the start of October, although it should be fine when it comes to humidity as it’s naturally resistant to humidity and rot. However you’ll need to take care that caterpillars don’t get near your plants’ juice buds.

The Best Outdoor Strains | Hybrids

Sensi Seeds Jack Herer

Just like Durban and Amnesia, Jack Herer is another classic strain that many consider to be one of the best strains of all times. It’s a slightly delicate plant that needs a little extra care in order to produce some of the best buds you’ve ever seen.

Jack Herer is a 50/50 hybrid strain that tends to grow more like a sativa plant; its indica side helps for strong growth and allows it to deal with issues such as dry climates or low quality substrate. This strain is great for outdoors, although you’ll need to give it a helping hand by training its branches; it does well with issues such as heat and cold, as well as rainy climates. The only inconvenience regarding this strain is its long flowering period, taking until mid-October to harvest outdoors. The wait is well worth its delicious flowers.

Critical 100% Feminized

Critical strains have become a world-wide sensation ever since they started being grown in Spain, and there’s good reason for it; these plants are complete in every sense of the world, dealing incredibly well with many issues, although it is slightly susceptible to fungi infestations due to its massive, compact buds. Compared to other strains of similar stature, this one holds up the best when it comes to stress.

Critical 100% feminized is a 50/50 hybrid strain that grows almost as strong and steady as a sativa plant, although once it begins to bloom you’ll easily notice its indica heritage. It can adapt to pretty much any environment and easily deal with arid, cold, rainy and mild climates – it’s a great choice for guerrilla growers, although its aroma can be a bit scandalous at times. This strain comes from Skunk and Afghani plants, hence its genetic sturdiness and strength.

The Best Outdoor Autoflowering Strains

Auto Gelatto 100% Fem

Autoflowering strains are a great choice for those looking to grow cannabis in practically place in the world; it may take a bit of extra care at the start to get it going, but this strain will shoot up once it really gets a hang of it. The interesting thing about this strain is its short life cycle; there’s hardly any time for insects or fungi to even think about infesting it, although under extreme conditions it may happen. Auto Gelatto 100% Fem is a great choice for any grower, alongside the rest of out bulk strains.

We’ve included this particular strain in this list, as it’s known for growing incredibly compact buds with plenty of distance in between to allow for airflow and humidity dissipation. It’s resistant to drought and excess heat too, which may end up causing it to grow less but it will also produce more resin. This strain is one of the best outdoor cannabis strains thanks to the amazing results that it provides without much effort at all.

Cream Mandarine XL Auto by Sweet Seeds

Autoflowering strains that produce large yields are popular right now, and this is definitely one of the best strains of the last few years; Cream Mandarine XL Auto. This strain comes from a cross between a Cream Mandarine Auto and a select clone of Super Tai’98, which makes for a plant that is incredibly strong and can grow up to 1.5m tall, impressive for an autoflowering plant. You can harvest between 50 and 300g per plant, harvesting after a total of 65 days from start to finish.

When grown outdoors, whether in a flowerpot or in the ground, this strain is an absolute monster in both height and width – keep this in mind when spacing them out, as they may end up shading eachother. On the other hand, this extreme growth allows you to prune and train it to fit your needs and to make sure that it can deal with strong winds while also increasing the size of its buds. This strain is generally quite resistant to insect infestations and humidity-induced fungi, so it’s great for both dry and humid climates; if you’re a beginner and not sure where to start, this autoflowering strain is a great idea.

The Best Outdoor Strains | Growing Recommendations:

Hopefully, after this brief review of some of the best outdoor indica, sativa and hybrid strains, you’ll have made your mind about about what strain you want to grow this year. Keep in mind that growing cannabis outdoors requires work; none of these plants will grow successfully if simply left to their own devices from day one. We recommend regular feeding schedules, as well as organically-sourced preventive products in order to keep them insect and fungi-free; try and get products specifically for typical cannabis infestations such as spider mites, caterpillars, fusarium fungi and others.

How much do you know about best outdoor strains? Find out more from our personal experience; find out which types of strains do well in which climates.

Mold Mildew Resistant Strains, Cannabis Seed, Marijuana Seeds, Sativa, Auto or Indica Seed

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Best-Selling Cannabis Seeds Nov. 2020

Strain Flower Time Yield
Strain of the Week (Fem) 10 weeks 18-24 oz/3x3ft
White Widow (Fem) 9 weeks 18 oz/3x3ft
OG Kush (Reg) 8-10 weeks 500-600 g/m2
White Widow (Auto Fem) 8 weeks from seed 4-6 oz/3x3ft
Super Skunk (Fem) 8 weeks 18-21 oz/3x3ft
Afghan (Reg) 8-10 weeks 500-600 g/m2
Blueberry (Auto Fem) 8 weeks from seed 4-6 oz/3x3ft
Gorilla Glue (Fem) 8 weeks 16-18 oz/3x3ft
Sour Diesel (Reg) 10-12 weeks 500-600 g/m2

Top 10 Best Outdoor Strains

The top 10 best outdoor strains to grow (listed below) are mostly indica-sativa hybrids, with a few pure sativa strains too. All high-yielding strains good for growing outdoors. Mold and mildew resistant strains to buy as regular or feminized cannabis seeds (aka marijuana seeds or weed seeds). The plants are resistant to mold, or are at least less susceptible than other so-called “mold resistant” strains we’ve tried outdoors in Hawaii.

Diesel (New York City Diesel) | Soma Seeds

NYC Diesel, or New York City Diesel, is a great strain for outdoor cash croppers. This surprisingly mold resistant strain produces sweet, chunky, heavy buds that reek of petrol. NYC Diesel is a 60% sativa, 40% indica hybrid first grown in the Big Apple.

🌱 Plants can shoot up to 3 meters tall. NYC Diesel grows vigorously, especially when provided extra hours of intense light. Also does well indoors grown in a hydro setup.

⚖️ The buds have a dank indica appearance despite it being a sativa dominant strain. Yields are high as well as quality.

💦 Easy to grow mold resistant strain from seed.

👍 Breeds strong hybrids and clones easily, NYC Diesel cuttings root quick.

NYC Diesel is a good all-around easy growing strain for producing good pot. As long as the plant has enough airflow, its buds have no problem finishing outdoors in wet climates. They can even handle being rained on. To be honest it’s not the tastiest strain out there, but the smell is real strong and it yields better than most candy strains.

Genetics Originates from the Chemdawg line
Flowering Time 10-12 weeks
Pack Size 1/5/10/50/100 seeds
Yield Indoors: 475 g/m2;
Outdoors: 950 g/plant
Mold Resistance

Buy NYC Diesel Seeds🌱

Blue Dream | Humboldt Seed Organization

Blue Dream is a super popular cannabis strain for a reason. It grows top shelf quality, dank buds on sativa plants that can get huge. High 17-24% THC content. This 70% sativa dominant hybrid originates from the West Coast.

🌱 Plants grow to enormous sizes. Blue Dream is a true beaster strain.

⚖️ High yields of potent & fruity sweet herb. The buds have colorful blue and silver hues, shining in a thick coat of crystals.

💦 Mold resistance is well above average, but make sure to give this strain some extra care and attention towards the end. The resulting A grade nuggets will thank you.

👍 An extremely easy to grow strain from seed and clone.

How many growers have been getting rich off Blue Dream? Some are against growing something so popular, but the fact is people love smoking Blue Dream, and want to buy it – a constant demand needs a constant supply.

Genetics Blueberry x Haze
Flowering Time 65-70 days
Pack Size 3/5/10/25 seeds
Yield Indoors: 350-500 g/m2;
Outdoors: 2-3 kg/plant
Mold Resistance

Buy Blue Dream Seeds🌱

South African Kwazulu | World of Seeds

Kwazulu is a landrace sativa that produces a massive dominant cola filled with big stinky buds. It is a true mold resistant variety, suitable for cultivation indoors or outdoors. This is one of the few top grade pure sativa strains that can compete with the best marijuana strains of today’s market.

🌱 Plants have the potential to grow large. If provided with a long vegetative growth cycle, Kwazulu turns into a tree.

⚖️ Buds are very big in a bag and look stunning, a real eye-catcher when finished good. Kwazulu has a pleasant smell and taste. Yields are well above average, more than most pure sativa strains.

💦 Does well outdoors with its high resistance to Botrytis cinerea (grey/blue bud mold) during flowering.

👍 Easy growing strain with a nice buzz. Stable genetics for breeding.

My last Kwazulu plant got drenched in a 10-day tropical rainstorm right before harvest. After the storm, there was no mold damage, simply a few brown spots of rot had to be picked out. Truly a rugged strain.

Genetics South African landrace sativa
Flowering Time 8-9 weeks
Pack Size 3/7/10/12 seeds
Yield Indoors: 350 g/m2;
Outdoors: 450-500 g/plant
Mold Resistance

Buy South African Kwazulu Seeds🌱

Grand Daddy Purple | Granddaddy Purple (Ken Estes)

Grand Daddy Purp, Grand Daddy Purple, or GDP by Ken Estes is the best choice for growers who want high grade purple pot. These famous West Coast buds are saturated in trichomes and packed with sugar leaf down to the stalk, resulting in very sticky trimming scissors. The smell of real deal GDP is heavenly – get a good whiff of it and the strong smell stays in your head all day. GDP is 70% indica 30% sativa.

🌱 Plants grow into a bushy indica plant structure. Grand Daddy Purple grows at a moderate speed, faster than a lot of other purple strains.

⚖️ Yields are medium to high. Grand Daddy Purp is a heavy feeding plant, so make sure there are plenty of nutrients available to get maximum returns.

💦 Performs surprisingly well when faced with rain and high humidity despite it being an indica dom. Good air circulation will ensure success.

👍 Amazing quality and appearance. Purple colors come out late in flowering at cooler temps.

Grand Daddy Purple buds are always in high demand. I got a hold of the seeds the first year Ken Estes released them and have been impressed with the strength of this strain, easy to grow anywhere and breeds well.

Genetics Purple Urkle x Big Bud
Flowering Time 7-8 weeks
Pack Size 5/10 seeds
Yield Indoors: 300-450 g/m2;
Outdoors: 400+ g/plant
Mold Resistance

Buy Grand Daddy Purp Seeds🌱

Pineapple Chunk | Barneys Farm Seeds

Any type of weed with the word pineapple in its name is good marketing. Whether that strain really tastes like pineapple is uncertain, but Pineapple Chunk is a productive high yield strain that has a strong tropical fruit flavor. Some phenos really do taste like pineapple, so buy a few seeds to find a winner for cloning. Real dank buds that weigh out heavy on the weed scale. 60% sativa, 40% indica.

🌱 Plants can grow into multi-pound bushes reaching up to heights of 10 feet tall. Indoor growers may consider flowering Pineapple Chunk early to keep this strain compact.

⚖️ Buds that please the general market: plump, fruity, skunky, heavy and dense. Yields well. Proper care of this strain leads to abundant yields of creamy, pineapple dank.

💦 Handles outdoor climates well despite being a candy hybrid. A fast flowering marijuana strain.

👍 Very easy to grow from seed. Suitable for beginners as well as the experienced cannabis cultivator. Pineapple Chunk can handle heavy fertilization, so a hearty diet of nutrients is recommended.

Some phenotypes have the pineapple fruity smell, while others have a more cheesy taste and aroma. All posses a heavy-hitting indica high and very stoney smoke. Hawaiian growers love this strain for their outdoor medical gardens.

Genetics Pineapple x Cheese
Flowering Time 55-60 days
Pack Size 1/3/5/10 seeds
Yield Indoors: 650 g/m2;
Outdoors: 750 g/plant
Mold Resistance

Buy Pineapple Chunk Seeds🌱

Wild Thailand | World of Seeds

Thai strains are pure sativa landrace strains that grow into monster cannabis trees. They are some of the largest cannabis plants on earth. Thais and other Southeast Asian sativas are prized by cannabis connoisseurs for their high THCV content, known to induce psychedelic effects comparable to magic mushrooms.

🌱 Grows tall quick. Thai strains will shoot up fast above other plants in a grow room. A stretchy growing plant that loves to suck up light.

⚖️ Yields can be massive but Thai strains have a super long life cycle that can take up to a year from germination. That’s why you don’t see pure Thai sativa everywhere on the market. Not for the quick cash cropper, more for the rare strain collector. World of Seeds sells a faster flowering Thai strain, named Wild Thailand.

💦 Ideal for tropical and subtropical climates, or northern climate growers who are up for the challenge. Thai strains are some of the most mold resistant strains in the world.

👍 The smoke from Thai strains is super smooth, making it great for phat bong hits. Thai strains have a unique musky flavor like lavender or exotic spices. Good cheap cannabis seeds.

The secret to harvesting top quality Thai weed is easy – just don’t pull early! The plants will turn yellow in color and drop a lot of its fan leaves during late flowering. Wait past this stage and you’ll really see what these buds are capable of.

Genetics Thai landrace sativa
Flowering Time 12-16 weeks or more!
Pack Size 3/7/10/12 seeds
Yield Indoors: 300 g/m2;
Outdoors: 1200+ g/plant
Mold Resistance

Buy Wild Thailand Seeds🌱

Super Lemon Haze | Green House Seeds

One of Green House Seed Co’s best selling strains, Super Lemon Haze is an 80% sativa hybrid for anyone who loves fruity pot. Its buds taste and smell and just like real lemons.

🌱 Grows big, although not the fastest variety from seed. Can be rather woody plants that get sharp alligator skin-like serrated edge leaves.

⚖️ Buds are lemony, fragrant and pack a stench that reeks through the bag. Beautiful, shiny and dense nuggets. Top shelf bag appeal. Yields as well as any other top cash cropper strains, which is rare for super fruity hybrids.

💦 Does well outdoors or indoors, growing into a sativa tree type pattern. These sativa dominant buds are not overly dense, which helps them breathe in heavy moisture climates.

👍 Relatively easy to grow anywhere.

Super Lemon Haze won back-to-back first prize at the Cannabis Cup and has remained a top seller for over a decade at the best marijuana seed banks.

Genetics Lemon Skunk x Super Silver Haze
Flowering Time 10 weeks
Pack Size 3/5/10 seeds
Yield Indoors: 800 g/plant;
Outdoors: 1200 g/plant
Mold Resistance

Buy Super Lemon Haze Seeds🌱

Bubble Gum | Serious Seeds

A classic fruity weed strain, Bubble Gum is a stocky 80% indica strain sporting lush, velvety flowers that taste identical to bubble gum when smoked. This cannabis strain is full of hybrid vigor.

🌱 Plants take on a wide, bushy stature. They grow vigorously, high in chlorophyll, with very fat stalks.

⚖️ Buds are soft as silk to the touch, yet have a good density. A high yielding indica strain.

💦 Try to keep Bubble Gum out of the rain. Not the most mold resistant strain out there, but it does better than many other indica hybrids.

👍 Easy to grow, easy to clone. Also does great under LED grow lights, forming up full and finishing solid to the end.

Bubble Gum cannabis seeds are a superb seed choice if you want a mold resistant candy strain. Bubble Gum has a long history on the Hawaiian Islands, and is a trusted legend with the old-time growers as well as the younger crowd.

Genetics Originated from Indiana, USA
Flowering Time 8 weeks
Pack Size 6/11 seeds
Yield Indoors: 350-500 g/m2;
Outdoors: 450-550 g/plant
Mold Resistance

Buy Bubble Gum Seeds🌱

Blue Widow | Dinafem Seeds

Blue Widow is an colorful marijuana plant with an intoxicating flavor. It’s chronic weed that tastes great right down to the ashes. This 50% indica, 50% sativa strain is so good that there’s a local on the Big Island with the nickname Mr. Blueberry Widow

🌱 Plants grow short and bushy but given enough light can structure out large. Blue Widow is great for guerilla growing plants in the bushes, or indoor grow rooms and greenhouses.

⚖️ Buds are fruity and skunky, possessing that distinct strong musty/pine widow smell combined with a blueberry fruitiness. Blue Widow forms up dense and looks amazing. Thick, juicy and potent.

💦 A fairly mold resistant strain when grown with care. Even faced with the high humidity of Hawaii, Blue Widow buds hold up against Botrytis mold and powdery mildew.

👍 Color changes happen during the end of flowering. Enjoy the brilliant purple, red, yellow and neon green colors of Blue Widow.

Blue Widow does well grown from seed outdoors and indoors, having earned a spot in many medical marijuana gardens in Hawaii and across the US. More stoney than some may prefer, Blue Widow’s combination of sativa and indica effects may leave users feeling confused. The high potency, strong aroma and sugar coated THC glaze makes this strain a winner. Excellent bag appeal.

Genetics Blueberry x White Widow
Flowering Time 7-8 weeks
Pack Size 1/3/5/10 seeds
Yield Indoors: 525 g/m2;
Outdoors: up to 1100 g/plant
Mold Resistance

Buy Blue Widow Seeds🌱

Early Pearl | Sensi Seeds

Early Pearl is an old classic variety from The Seed Bank catalogs. Early Pearl buds are light-green in color, extremely pungent, fat and dank. The Early Pearl strain has been mass-produced by outdoor growers for decades. People tend to call it whatever they want, meaning you may already know this strain under a different name. Early Pearl is a 75% sativa that grows like an indica.

🌱 Grows quick, developing into a short, stout plant that performs well outdoors, indoors, in grow tents and in greenhouses.

⚖️ Buds are skunky, pungent and have great bag appeal. Tasting Early Pearl buds is like a skunk spraying right in your mouth. Good high yields.

💦 One of the first strains to be noted as an “early mold resistant variety”.

👍 Its fast flowering time works great for quick cycling of seeds and clones.

I gave a stoner celebrity a bag of mixed buds that included Early Pearl, Purple Kush and a few other top breeds. He only wanted the Early Pearl, giving the rest to friends. Stoners looking for stinky, dank, cat piss marijuana will be pleased with Early Pearl.

Genetics Originated from the West Coast
Flowering Time 60 days
Pack Size 10 seeds
Yield Slightly above average
Mold Resistance

Buy Early Pearl Seeds🌱

*Bonus: Mendo Purple Kush

Mendo Purps is an award-winning indica that has proved to be a reliable seed strain for both outdoor and indoor growers. Coming straight from California’s Humboldt County, it represents some of the best purple weed on the West Coast. Combined with Purple Kush, a legend in itself, the Mendo Purple Kush hybrid is a producer of premium quality purple cannabis.

🌱 Plants grow bushy with large leaves in a typical indica fashion, up to 7 feet tall. Each phenotype shows uniques color qualites from green to purple to intense violet.

⚖️ Buds have a beautiful dark appearance and fruity grape flavor. Mendo Purple Kush has top shelf bag appeal. Yields are high.

💦 Mold resistant strain in most climates, be careful of rain on these indica buds.

👍 Breeds strong hybrids and clones easily, cuttings root fast in aero cloners.

Mendo Purple Kush is a great all around strain that grows like other kush strains. These indica varieties flower a little longer than hash plant indicas, but it is paid back in heavy, top grade harvests.

Genetics Mendo Purps x Purple Kush
Flowering Time 8-9 weeks
Pack Size 3/5/10 seeds
Yield Indoors: 450 g/m2;
Outdoors: 600 g/plant
Mold Resistance

Buy Mendo Purple Kush Seeds🌱

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Topics include: Organic and non-organic methods of cultivation, indoor and outdoor growing, strain breeding, reviews. Sativa and indica. Landrace and IBL. Feminized, regular and autoflowering seeds. Good strains for the outdoors, mold resistant strains, powdery mildew resistant strains, outdoor strains. Bud trimmers, weed fertilizers, cool grinders, aero cloners, gram scales, as well as grow tips, tricks and other cannabis niche content.

Disclaimer: Read your federal and state/county laws before buying seeds online. We do not promote or undertake in illegal activities.

Sativa and indica. Landrace and IBL. Feminized, regular and autoflowering seeds. Good strains for the outdoors, mold resistant strains, powdery mildew resistant strains, outdoor and indoor strains.