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Autoflowering plants automatically move from vegetative to flowering without anyone changing the lighting. This makes them perfect for beginner collectors, and why so many in the Seedsman community collect autoflowering cannabis seeds.
Additionally, they’re more compact and easier to care for, can better handle pests, and are ready to harvest sooner in legal markets.
Autoflowering seeds are a Seedsman speciality; we were the first to sell autoflowering cannabis seeds to the public. Check out our conversation with The Joint Doctor, the first cultivator of autoflower genetics here .
Buy Autoflower Seeds
Seedsman has the most extensive selection of autoflower cannabis seeds anywhere in the UK, selling cannabis seeds to collectors from international breeders like Barney’s Farm , Royal Queen , Dinafem Seeds and our very own Seedsman autoflower cannabis seeds.
With worldwide stealth postage and multiple payment options, it’s never been easier to buy autoflower cannabis seeds.
How to Grow Autoflowers
#1 Getting started before you get started
It’s tempting to browse an autoflower product page and get excited by the prospect of your own home-grown buds in just a few weeks. But, because they don’t take long to grow once potted – you must plan your growing process beforehand.
What growth medium are you using? If you’re growing outdoors, is the climate correct this time of year? If you’re growing indoors, have you sorted out your lights and ventilation?
Growing different plants gives you wiggle room to adjust how you raise them. Autoflower’s speed means you need to have all your ducks in a row before you even begin germinating.
#2 The right pot for pot
You’ve designated your space outside, or you’ve plugged your lights indoors, and you’re ready to go. Autoflowering cannabis doesn’t like being repotted due to its short growth cycle (if you’re going to repot, rather do it sooner than later), once your seeds are planted, ideally, then that’s where they should stay. You need to ensure your pots are the right size for a fully grown plant.
You shouldn’t need overtly large pots as autoflowers are generally more petite; nevertheless, the pot needs to have enough room for the roots to grow.
They also need to drain well, so perhaps breathable containers like fabric pots are your best bet. Otherwise, plastic pots with plenty of drainage holes will work just fine if that’s your only option.
3 Getting your nutrients right
Recently, the Godfather of autoflower strains himself, The Joint Doctor, joined Seedsman on a live stream to share his advice on growing autoflowers; he said – “One of the best ways to grow autoflowers is low intervention, don’t overthink them.
Nutrients are important, but most autoflowers don’t require too many nutrients because you’re adding things to improve a plant that’s already genetically designed to grow as is. Just use your common sense. If the plant is growing fine and looks good, then adding nutrients is just trying to improve something that’s already working well. If they need ‘em, then add ‘em, but don’t add nutrients for the sake of it.
Anything that you do wrong will stunt the plant, so, be gentle with it – whether that’s gentle with planting or with nutrients. Be gentle”.
So, there you have it. Autoflower roots are less expansive than photoperiods, so if you’re following a nutrient chart, ensure you’re considering the size of your plant and adjust accordingly.
The best practice with autoflower nutrients is not adding too many and allowing the plant to grow as organically as possible, if possible. If you’re growing indoors where you’re controlling the environment, if you get your lighting, ventilation and humidity right then, nutrients shouldn’t be overthought but still, need proper consideration.
#4 Let there be light
Autoflowers are tough and adaptable, but if you light them right, you’re making their lives that much easier. Autoflowers work best with an 18/6 light ratio. Some growers insist on a 24-hour life cycle from the beginning until harvest. We’d say give them a break as sometimes you can get too much of a good thing.
If you’re growing outdoors in the summer, you may be worried about only getting between 10 and 12 hours of sunshine, but the sun is far more powerful than any artificial light, so don’t stress too much.
Indoors try and use full-spectrum LEDS as the more lumens on offer, the greater the yield. That being said, autoflowers do prefer HPS and LEDs over CFLs or fluorescents.
#5 Go go H20
Yes, autoflowers are resilient and more forgiving, but get your watering wrong, and you’ve got no chance. Not enough water means a dead plant, too much water leads to a rotting one.
So, how do you get this right?
Well, try and stick to a regular watering schedule. But use your common sense. There isn’t one schedule that fits every grow. There are too many variables like soil composition, humidity, plant size, age and more to nail down a single watering guide.
When you first plant your germinated seed, try and ensure your soil is moistly dampened before adding the seed. Many first time-growers make the mistake of watering the soil immediately, which can drown the seed. If needs be, give it a light sprinkle.
Water, like lighting and nutrition, comes down to observation. Adjust accordingly.
#6 Consider your pH
Inside or outside, soil or hydroponic, pH needs to be considered every step of the way.
For a hydroponic grow, your pH balance should sit between 5.5 and 6.5. In the soil, anywhere between 6.0 and 7.0 is fine.
pH falling below 5.5 means nutrients like magnesium and calcium aren’t absorbed; the same goes for anything higher than 7.0. An incorrect pH in either your water or your soil can and will ruin a yield.
So, ensure you invest in a suitable pH measuring product like a pH meter handy to keep an eye on your harvest.
#7 Don’t forget your training
Due to the reduced seed–harvest period, you need to train your plant to encourage a better yield as soon as possible. These need to be LST’s (o, Low-Stress Techniques) as the plant will still be quite fragile.
This means ensuring all bud sites get equal light and possibly using string and toothpicks to ensure they’re propped up and balanced.
Some say you should top your autoflower as soon as nodes appear to encourage a more extensive canopy as well, but, as the Joint Doctor said, sometimes less is more.
Your aim should be to ensure your stems are supported and equally lit. How you do that is up to you!
#8 Not too hot, not too cold
Despite their resilient nature, if you’re constantly fluctuating the temperature in which your plants are growing, then you’re not going to have any success.
Growing them outdoors means you’re at the mercy of the elements, so ideally, you’d have them planted in the summer, where most of the time, it’s warm. Even still, if the temperatures are soaring, you might need to consider shading your plants to reduce the heat on them.
The perfect temperature for an ideal autoflower harvest is debatable, but most agree that anywhere between 67 and 77 degrees Fahrenheit (20-25 degrees Celsius) is excellent.
Also, your plants need fresh air circulation (as does any growing plant) to help reduce the chance of moulding and ensure proper moisture.
Sit down where your plants are growing for a few minutes. Are you warm enough? Too warm? Is it too breezy? Do you need some shade? If you’re feeling any adverse effects, then so are your Autoflowers.
#9 Harvest patiently
When your plant begins to flower, each bud will bloom differently and thus not ready to harvest all at the same time. The buds at the top usually mature faster than those lower done, so start with those.
Leave the rest for another day, two or three, and then they can be harvested. This ensures a good yield and, if done correctly, can give you a result all year round if they’re growing in the right conditions (indoors, usually).
#10 Have fun with it
If this is your first time growing autoflowers, then chances are it’s not going to go perfectly. The best way to learn is to make mistakes and ensure you don’t repeat them. Autoflower cannabis, despite its incredible genetics, is still just a plant.
And, like any plant, on top of light, food and water – they need love and attention. Your yield matches your efforts. Put the work in, share the love, and your plant will grow big and strong with large, sticky buds.
Top 10 Cheap Autoflowering Seeds 2022
If you’re growing on a budget it’s important to choose the best genetics without spending a lot, here’s a list of our top 10 cheapest seeds that will reward you with top-shelf buds for only 9 euros each!
1. Cinderella Auto
Cinderella Auto is a high-yielding auto with 23% THC that resulted from a cross between our own autoflowering genetics and extremely potent Cinderella genetics, specially selected by our breeders.
Heavy yielder, strong structure, pine nose, forgiving and easy to grow, can increase yield even more with some LST and defoliation
Thanks to its Sativa heritage, this plant can grow up to 1.2m tall with a large internodal spacing and several side branches that will be completely covered in frostbitten buds by week 8-9 from seed.
This strain provides an extremely sweet and smooth taste that will remind you of peaches and pineapples, providing a powerful cerebral high while relaxing your muscles and getting your creative juices flowing with a euphoric and uplifting high, a great strain for social events or creative activities like drawing or writing.
“Bud appearance is slightly more on the Indica side with fat and dense nugs covered in a thick layer of extremely sticky resin. The aromas when opening the jar is incredible with strong tropical and skunky notes with some pine undertones. The effects of this strain are very balanced with a euphoric and happy feeling at the beginning then slowly starting to stone you with strong relaxed feelings. ” -JohnnyBlaze
- This strain doesn’t need much maintenance so make sure to feed it properly.
- Due to the heavy-weight buds, it’s essential you have a few stakes ready to provide support.
2. Big Bud Auto
Resulting from a cross between extremely resilient genetics, this super easy to grow Indica-dominant strain offers 23% THC and super yields in as little as 8 weeks.
Big Bud Auto can grow up to 120cm, it produces multiple bud sites which will be filled with bright green buds completely covered in trichomes in around 8-9 weeks. This strain is super forgiving to beginner mistakes and can yield up to 500gr/m 2 , making it perfect for everyone who wants an easy-to-grow strain.
Thanks to the floral, fruity, and sweet terpenes you can expect a really complete effect which is divided into two; You’ll experience a gentle head rush that will gradually fade out into a relaxing and chill effect that is not sedative but can get you couch-locked if that’s what you’re looking for.
- Due to the dense buds, it’s recommended to perform SCROG or LST to allow more airflow between the buds.
- Even though she’s a hefty producer make sure you don’t feed in excess.
3. Trainwreck Auto
With around 22% THC this strain is a beautiful hybrid that will leave you flying all day long. Growing around 70-120cm, this cultivar develops one large main cola and shorter side branches filled with several bud sites, yielding up to 550gr/m2 in 8-9 weeks.
Trainwreck Auto produces medium-sized super sticky buds with a unique flavor of spicy deep citrus lemons terps with a sweet aftertaste, making it perfect for extractors and demanding hash makers.
You can expect a calm and pleasant head high that promotes a peaceful state of mind without the feeling of paranoia or laziness, this is a daytime strain for anyone who needs a little motivation to start a busy day.
- Feed it properly and start with a light nutrient dose to avoid overfeeding.
- We recommend growing in 12-liter pots to allow the plant to reach its full potential.
4. Amnesia Haze Auto
Amnesia Haze Auto is strongly recommended for growers who live in hotter climates, where you will see her really take off in height reaching up to 150cm and producing huge yields of up to 450-650 gr/m 2 in less than 75 days.
an almost ideal smoke for weekends, vacations, going out, parties, just chilling with friends or driving around (preferably not behid the wheel lol).
With up to 22% THC this strain is a must for every grower who wants to try the old-school classics in auto form and for those who enjoy long-lasting strong cerebral effects. You can expect thick and dense buds with an abundance of trichomes and bright orange hairs which will reek of orange citrus with floral overtones and a flavor identical to its aroma.
After taking the first puff you will experience a cerebral roller coaster that stimulates all the senses while still feeling focused and motivated, that energized sensation will slowly turn into a more lethargic and relaxed mindset as time passes, a great strain for gaming, writing, or just hanging out with friends.
- Like all other Sativa-dominant, this strain prefers light doses of nutrients so make sure you go easy especially on the Nitrogen.
- We recommend going easy on the plant training because Sativas are more sensitive to stress.
5. Northern Lights Auto
Northern Lights Auto can be grown without much maintenance, making it perfect for beginner growers who will be rewarded with 600gr/m 2 of top-shelf buds with up to 20% THC in around 9 weeks.
just finished this grow a week and a half ago, yielded around 160g off one and about 100 on another. dry. 5 out of 5 from me!
Her buds are super frosty with swollen calyxes all over, a fantastic option for hash makers who will benefit from the mouthwatering mix of spicy, peppery, earthy, and fruity terpene-profile which provides a face-melting couch lock effect on your entire body.
This incredibly resilient gem is perfect for beginners, recommended for those who prefer a good couch-lock effect and fast-acting Indica-dominant hybrids that will relax you all day long, especially after a long day of work, to induce sleep or if you just want to shut down for a bit.
- This strain loves a big feeding so make sure you flush properly to remove nutrient build-up.
- A perfect strain for those who grow in a Sea of Green.
6. OG Kush Auto
The most powerful from our Originals line, our Auto version of the famous OG Kush tested at 23% THC and is a true expression of the world-known strain.
You can expect OG Kush Auto to grow between 70-110cm and thanks to her Indica heritage, will yield up to 550gr/m 2 of insanely loud flowers in around 63 days.
mental and physical relaxation with just a touch of euphoria, not spectacular but quite enjoyable when you have work to do but need to be medicated
This strain develops bulky and stocky and produces rock-hard buds with very dense calyxes and a pungent earthy, piney, and citrusy terpene profile which leaves a creamy taste in the mouth, with kerosene and chemical overtones that make for deliciously potent mouth-watering extractions, perfect for hash makers looking to take their products to the next level.
You will experience an extremely potent full Indica-like effect which will eave you heavy-bodied and couch-locked for a long time, smoking too much will make you go to sleep so we recommend it for medicinal patients, old-school smokers looking for that classic smoke, or for those looking for a nighttime smoke.
- Be careful when growing this strain, her insanely loud terpene profile can attract unwanted attention.
- OG Kush Auto prefers a big feeding so make sure you gradually increase the amount of nutrients.
7. Bubblegum Auto
Our Auto version of this old-time classic offers the perfect blend of Indica and Sativa genetics, with up to 20% THC she will be ready in 9 weeks from seed and will reward you with delicious tasting flowers.
she still yielded pretty well but if I knew she ‘d be so small I’d planted not one seeds but two. As it was my grow tent was half empty.
Bubblegum Auto grows between 80-130cm with one large main cola and several side branches covered in buds from top to bottom, she will develop quite bushy and resemble a Christmas tree as she expresses her balanced genetics mix.
Her compact buds look like they’ve been soaked in resin, giving her a super sticky look and feel, her impressive bag appeal is only overshadowed by her juicy strawberry smoothie aroma which is combined with funky and sweet undertones leaves your mouth feeling like you ate a berry lip balm.
This strain will leave you with a nice sense of clarity and creativity, perfect for social scenarios, appreciating nature, or starting the day motivated.
- This strain can grow quite tall in some cases so make sure you have enough space available.
- We recommend plant training around week 4 to enhance the yields even further.
8. AK Auto
AK Auto is a strong Sativa-dominant strain also known for its extremely powerful effect that will get you high as a kite with just one hit, while also being very easy to grow, and super resistant, thanks to its pedigree genetics. Thanks to its homogeneous structure, plants can be closed together and it’s a great strain for a Sea of Green.
reminds me of the stuff we smoked back in the day, energetic and easy going high. this was my favorite of the originals i’ve grown
You can expect up to 500gr/m2 in around 63 days, the glistening buds develop an elongated shape and will grow stacked together in really long colas which can reach up to 100cm.
The old-school mix of earthy, floral, and piney with a touch of lemon citrus aromas will leave the whole room smelling like a fresh forest while you feel an energizing and exhilarating effect that isn’t too racy while also feeling a pleasant mellow body high that will keep motivated, an incredible genetic for keeping organized and focused during a hard day of work.
- Growers who live in a wet climate don’t have to worry about mold or mildew due to its high resilience.
- Make sure you have the trim bin ready when harvesting because not only the buds but also the surrounding leaves will be full of trichomes.
9. Cheese Auto
This terpene heavyweight produces one of the most unique terpene profiles out there, smelling like straight cheese with up to 21% THC, this plant yields up to 550gr/m 2 in around 9 weeks. Despite growing up to 110cm, Cheese Auto grows stout with thick Indica fan leaves and thick side branches filled with greasy buds from internode to internode.
Nice relaxing body high with little paranoia. A great evening smoke or after getting home from work. I’m really very happy with it.
The buds are dark green with brown pistils that reek of a pungent dank cocktail of sharp sour, earthy, and tangy edge, making it one of the tastiest terpene profiles out there, perfect for hash makers and extractors looking for unique terpene profiles.
As soon as you light a joint you will feel a strong narcotic effect which will leave you melting on the nearest sofa, this is a very good option for avid consumers who love a potent strain to smoke in the evening before bedtime or just relaxing in the couch with a bag of chips.
“Overall she looked good the entire grow. She has a well compact but dense structure when provided with enough light you would have good production from top to bottom.
In the week nearing harvest we had a nice autumn shade cover the tops.” – PharmaZ
- When flowering this strain is super pungent so we recommend a filter to eliminate the strong smell.
- Extremely recommended for hash makers due to its insane trichome production and delicious terpene profile.
10. Jack Herer Auto
The multiple award-winning strain is now in auto version in honor of the world-famous cannabis activist. This Sativa-dominant plant yields up to 500gr/m 2 , the impressive yields come hand-in-hand with 21% THC and long fat buds which develop bright orange hairs and are drenched in trichomes. This medium-sized cultivar can reach up to 90cm in height and despite her Sativa heritage, she will grow with short internodal spacing.
Really liked this, we abandoned her for a bit while camping but she survived! We pressed all her sticky buds into rosin. Will grow again!
Jack Herer Auto has a unique combination of sweet earthy, spicy and citrusy terps that expresses the full spectrum of floral and fruity terpenes, the complex terps provide a very pleasant effect that allows you to quickly relax while being alert and focused.
Due to her fine balance of Indica and Sativa genetics, it’s a great strain for smokers with a low tolerance, and for consumers who are looking for a strain to go through a long day with a clear head and stress-free. In this timelapse of our Jack Herer Auto, you can see she’s growing beautifully and gradually growing pistils which will end up being delicious smelling flowers.
- This strain can be grown in colder climates but growers can achieve outstanding results in hotter climates.
- She may take a little longer to trim but expect a lot of trichomes in your trim bin, perfect for making extractions and hash.
11. In conclusion
It really doesn’t matter if you can’t afford the most expensive seeds out there, you can grow top-shelf buds in as little as 9 weeks without spending a penny over $9.
Top 10 Cheap Autoflowering Seeds 2022
|Strain||THC||Yields||Grow Cycle||Strain||THC||Yields||Grow Cycle|
|Cinderella Auto||23%||450 – 550 gr/m2||8 – 9 weeks||OG Kush Auto||23%||450 – 550 gr/m2||9 weeks|
|Big Bud Auto||23%||400 – 500 gr/m2||8 – 9 weeks||Bubblegum Auto||20%||450 – 550 gr/m2||9 weeks|
|Trainwreck Auto||22%||350 – 550 gr/m2||8 – 9 weeks||AK Auto||21%||400 – 500 gr/m2||9 weeks|
|Amnesia Haze Auto||22%||400 – 650 gr/m2||10 weeks||Cheese Auto||21%||400 – 550 gr/m2||9 weeks|
|Northern Lights Auto||20%||500 – 600 gr/m2||9 weeks||Jack Herer Auto||21%||400 – 500 gr/m2||9 weeks|
If you have grown one of our top 10 cheapest strains please share your experience with fellow autoflower growers in the comment section below!
Autoflowering marijuana seeds
Autoflowering seeds are a type of Autoflowering marijuana seeds that have certain advantages over normal photodependent strains. There are several different formats within this kind of cannabis, being the Auto fem the most demanded, although many Auto XXL, CBD-rich automatics, and even regular autoflowering are also grown.
Comparison of the best autoflowering plants, which one to buy?
We have more than 850 autoflowering seeds, if you prefer to play it safe you can choose any of those listed in this comparison that will not disappoint you.
The meaning of the autoflowering concept means that has the ability to flower automatically, as opposed to the usual photodependent marijuana, which relies on the hours of light and darkness to grow or flower. Normal strains grow when they have enough hours of sun or artificial light, and start flowering when they perceive that they have less hours of light or that the nights are longer.
On the other hand, plants that come from auto seeds start flowering spontaneously after 3 to 4 weeks of life, regardless of the hours of light or darkness they have.
What is the ideal seed for me? Buying guide
If you prefer to learn more why you need a specific type of seed, these options could be your solution:
If you want a lot of production, this is the place for you, productions can reach up to 1500 gr..
If you are a first time grower and want to make growing easy and simple, this selection of seeds is for you.
If you are looking for a happy, stimulating and psychoactive effect, here is the comparison with our recommendations..
Whether you are looking for a relaxing, introspective or narcotic effect, we have studied them and know that these will not let you down.
This selection of feminized blues will make your friends envious, try it and leave your colleagues speechless
La purple marijuana is in high demand by Pev-lovers for its preciousness, stop and let decorate your environment.
Do you like strong emotions? With our selection you will discover the most powerful of our catalog, do you dare?
In today’s society everything is rushed, if you want your crop as soon as possible choose one from this list.
If with the options we have offered you did not find the seed you are looking for, what you need is to browse our feminized seed filter, if you browse from your mobile you have the access below, but click on the next button.
ACCESS THE FILTER
What are the best auto seed banks?
Currently there are several banks that have autoflowering cannabis genetics, and from our point of view these are the best:
How are auto seeds in general?
They are marijuana plants of fast cycle, this means that their life is shorter and their rate of development is faster in general. As a general rule autos do not reach the height and yield of normal flowering strains, although there are exceptions.
Autoflowering strains are descended from ruderalis, a subspecies of cannabis different from sativas and indicas, and this is what makes them different. Ruderalis emerged in a very northern latitude, between Hungary and Russia, where summers are very short and the cold comes very early each year. This meant that this new species of cannabis had to flower very quickly if it wanted to mature seeds, and over the years and natural selection stabilized the gene that forces it to self-flower.
How do you know if a seed is autoflowering?
The autoflowering seeds are exactly the same as the rest of marijuana seeds, the fact that it is auto does not change the appearance of the seed, since the appearance, color, or size of the same is given by their genetics.
The only way to know if a seed is auto or photodependent normal, is to plant it and wait at least 1 month. If you grow this seed indoors with a photoperiod of 18 hours of light and 6 hours of darkness, and after 1 month of life does not bloom, it means that it is not autoflowering.
Advantages of autoflowering cannabis seeds
- thumb_upGrowth: They usually grow with the speed of sativas but in a compact way like indicas, thanks to their great hybrid vigour.
- thumb_upCold: Autoflowering seeds tolerate cold weather fairly well, without stopping their development in many cases.
- thumb_upLight: Light pollution is not a problem for Autoflowering.
- thumb_upHarvest: You can harvest outdoors several times a year.
- thumb_downLeaves: They usually produce more leaves, so their calyx / leaf ratio is lower
- thumb_downResin: Plants that generally produce less resin
- thumb_downMother plants: It is not possible to keep selected mother plants from auto seeds, because they bloom with any photoperiod.
Are autoflowering seeds better for beginner growers?
From our point of view yes, auto seeds are better for inexperienced growers because they are easier to grow, withstand stress better, and don’t require as much attention as regular strains.
In indoor growing they don’t need you to change the photoperiod from growing to flowering, these plants start flowering when they reach sexual maturity, whatever the amount of light and darkness they have.
Outdoors they withstand low temperatures much better than most normal genetics, and insect attacks don’t affect them as much as other types of cannabis. Thanks to their height and faster life cycle, they go unnoticed much easier.
If you grow autos on the terrace you will see that they can flower properly even when, because of street lamps or other lights, the darkness of the night is not total. You can’t do that with photodependent seeds.
Autoflowering seeds can take more food without the risk of over-fertilisation, their great hybrid vigour allows them to withstand any form of stress much better.
Difference between autoflowering or feminized seeds
Although auto and feminized seeds may appear to be identical, the plants that come out of them have several significant differences, which you can see below:
- filter_1The leaves of auto seeds are usually 5 or 7 leaflets at the most, when normally feminized and other photodependent seeds have between 7 and 13 leaflets (The “fingers” of the leaves)
- filter_2 Autoflowering plants tend to grow with the speed of sativas but in a compact way like indicas, thanks to their great hybrid vigour.
- filter_3 Automatic seeds withstand cold weather fairly well, without stopping their development in many cases, unlike the feminized ones that stop or even die.
- filter_4 Autoflowering strains tend to produce more leaves, so their calyx/leaf ratio is lower than that of photodependent feminized strains.
- filter_5 From auto seeds come out plants that generally produce less resin than normal flowering genetics.
- filter_6Light pollution is not a problem for autoflowering, but normal varieties can not bloom if it is not in total darkness.
- filter_7You can harvest outdoors several times each year with automatic seeds, but with normal feminized seeds you can only have one harvest per season
- filter_8You can’t keep mother plants selected from auto seeds, because they flower with any photoperiod, unlike normal ones.
If you want to go deeper into this topic, I recommend you read an article of our blog comparing auto and normal varieties, there you can see in a more extensive way all these differences.
Can an autoflowering plant give seeds? Creating autoflowering strains
There are 2 ways to create autoflowering seeds, the easiest way is to cross 2 100% autoflowering strains, that way the new strain will be autoflowering too. For example, if you pollinate a Blueberry Auto with a Black Mamba Auto, all the offspring will also be autoflowering.
But the best way to create autoflowering seeds is by crossing a normal plant with one of ruderalis ancestry, and then stabilizing the autoflowering trait in all the offspring. This way is not as easy as the previous one, and requires much more time to get a fairly uniform variety, but it is the only way to introduce the genes responsible for autoflowering in a non-auto genetics.
When you cross a photodependent with an autoflowering, the first generation or “F1” is not autoflowering, this is because autoflowering is a recessive trait, which they contain in their genetic information but do not show in the first generation. The ideal in F1 is to cross several specimens similar to the non-auto part, which are usually elite clones.
In the second generation about 25% of autoflowering individuals come out, and to detect them what is done is to put them all to grow at 18 or 20 hours of light per day, and after 1 month those that have not begun to bloom are removed. Once you cross only these autoflowering specimens that are left, all the following offspring are auto too, but the ideal is to make a last cross between them to fix well this special quality.
How to plant autoflowering seeds
Although in general the cultivation is very similar to that of normal cycle plants, there are some details that must be taken into account when growing autoflowering seeds. The most important is that when flowering spontaneously after 3 or 4 weeks of life, you have to try that during this short period of vegetative growth do not have any problem and reach the largest possible size.
This must be taken into account both indoors and outdoors, because otherwise the plants will not produce as much as they could, but there are also specific factors for each type of crop, and we are going to see them below.
How to plant autoflowering marijuana seeds outdoors
Many growers can only grow cannabis outdoors, and for them automatic seeds are a very interesting option, because they can harvest several times throughout the year. However, there are a few things to keep in mind before you get started, which you can check out here:
When is the best time to plant auto seeds outdoors?
If your intention is to get the highest yield possible, wait until spring or summer, the more hours of sunshine, the greater the capacity for development and production in general.
But if you just want to harvest to have something to smoke until the next crop, you can germinate at any time except winter, which isn’t worth it unless you plant them in a greenhouse and give them extra supplemental light.
For growers who can only grow auto seeds and want to get as many harvests as possible throughout the year, there are some very interesting strains for their growing speed, you can see them here in our article “Fastest autoflowering strains”.
Where can autoflowering plants be planted outdoors?
Because of the discretion that gives its more compact and reduced size, autoflowering seeds can be planted in pots on balconies, terraces, urban gardens, gardens, patios, or directly in the ground in gardens or guerrilla. Another good option are greenhouses, because they protect the plants against bad weather conditions such as rains.
Ideally, look for a location that receives the maximum amount of direct sunlight each day, because the more light the better. If you are going to plant several seeds in mother earth, remember to leave a space between them of at least 1 meter, so they won’t block the light between them.
Pot and substrate Which are best for outdoor autos?
If you can’t plant in the ground directly, the best pots to plant autoflowering seeds outdoors in spring or summer, are the big ones, of 20 litres capacity or more. In the case of not having much experience of cultivation, we recommend to plant the seeds in the final pot to avoid having to make transplants. If you do it this way, remember that you can’t soak all the soil in the pot until the plants are big, it is better to water little by little around the stem when they are small, and increase the diameter of the watering as the plants grow.
The substrate is best All Mix type, but as loose and spongy as possible, so that the roots don’t have too much trouble colonising the whole space. It is very advisable to add fungi and beneficial bacteria to the substrate and in the first waterings, because this way the root system develops earlier and is subsequently protected against the attack of other pathogens.
Other things to consider before planting auto seeds outdoors
- It is better not to do aerial pruning so as not to slow its growth, if you want to boost production in the secondary branches the ideal is to do Supercropping (Fold the main tip so that other branches are higher.
- Beware of deficiencies during the vegetative growth phase, as any problem that makes the plant understand that it lacks food can cause it to start flowering earlier, and therefore grow less.
- If you decide to transplant , do not wait until the roots have colonised all the substrate before moving the plant to another pot, as it will have lost development. You must transplant very carefully before the roots start to become entangled.
Which are the best autoflowering seeds for outdoor growing?
In general all autoflowering marijuana strains can give good results outdoors, but there are a number of auto seeds that stand out for their strength, resilience, adaptability, and high yield in outdoor crops, these are:
|Critical Plus Autoflowering||Magnum||Amnesia Lemon Autoflowering||Power Plant Auto XXL||Haze XXL Autoflowering|
|Thanks to its resistance and versatility, these seeds give good results in any circumstance, being the best option for beginners or inexperienced growers.||One of the best selling auto seeds for its high stature and great production. It is a good choice for off-season outdoor growing, as it finishes larger than most autoflowering strains.||Auto with sativa effect and high production of buds and resin. It contains an outstanding hybrid vigour, which allows it to withstand different types of stress without losing production.||A very strong all-round variety, with sativa effect and old school flavor. Very good yields of large caliber buds and medium hardness, with good amount of resin.||Height and yield similar to Magnum, but more powerful and tasty thanks to its Haze ancestors. Its strength greatly facilitates its cultivation, as there is nothing to stop its rapid development.|
If you have been left with more desire to see other auto seeds that go very well in outdoor growing, I recommend you take a look at this article of our blog that talks about the best autoflowering varieties for outdoor growing, you’ll like it.
How to plant autoflowering seeds indoors
In indoor growing we have the possibility to control the light and environmental parameters, so it is easier to maintain the ideal environment for growing autoflowering plants. This type of marijuana plant has the ability to flower with any amount of hours of light and darkness, unlike the photodependent varieties that need a constant darkness of 12 hours of darkness daily to bloom properly.
Another difference with respect to outdoor cultivation is that normally a greater number of plants per square metre are planted, to try to make the most of the artificial light, so they are planted in smaller pots as well. If you want to grow ruderalis genetics as a professional would, you will be interested to read this post of our blog that gives 10 essential tips for growing automatic flowering cannabis plants.
Pot and substrate ideal for growing auto seeds indoors
As a general rule you put between 9 and 16 automatic plants per square meter of indoor growing, although in some cases you can put up to 25. If you put 9 I recommend choosing pots of 11 or 15 liters, if 16 can go in containers of 7 or 11 liters, and if you decide to put more than 16 ideally go in pots of 7 liters.
The substrate is preferably aerated, not easily compacted, and as for outdoor cultivation, it is advisable to add fungi and beneficial bacteria. To avoid possible problems with transplanting, we recommend planting directly into the final pots.
Auto XXL are larger than normal autoflowering plants, and this should be taken into account when choosing the number of plants and the capacity of the pots. In some cases it is enough with 4 plants/m2 to cover all the illuminated space, and we have even seen autoflowering seeds that with only one specimen occupy an entire 1M x 1M cabinet, but in hydroponic cultivation.
Tips to get the best results when growing autoflowering plants indoors.
- Photoperiod: The more hours of light, the higher the overall yield, but you don’t need 24 hours of light per day. A photoperiod of 20 hours of light and 4 hours of darkness is perfect for this type of plants, but if you don’t want to spend so much electricity consumption, 18 hours of light and 6 hours of darkness per day is enough to get great yields.
- Nutrition: Autoflowering genetics admit higher doses of fertilizers than normal ones, but they can also suffer from over-fertilization. We recommend adding root stimulator to irrigation during the first 2 or 3 weeks of life of the plants, because a healthy and strong root system is the basis for great harvests of autoflowering marijuana.
- Pruning: It is not very interesting to cut the main tip of autoflowering varieties, it is better to leave them natural. But something that can improve the yield is to prune low at the beginning of flowering, removing all the low branches that do not receive much light so that the high tips give a plus of production.
Best autoflowering seeds for indoor growing.
|Mamba Negra Auto||Gorilla Glue Auto||Blueberry Auto||Cheese Auto|
|If the Northern Lights marked a before and after in indoor growing back in the 80s, its autoflowering version is not far behind. Compact plants, very easy to grow and huge buds.||From our point of view is one of the most complete auto seeds of all time. Its great resistance allows it to perform well even if it doesn’t have the best conditions, and its taste is a delight.||Special variety for those who claim that the autoflowering are not very powerful. It is an ideal weed for cannabis extractions for its amount of resin and aromatic terpenes.||A classic that you have to try at least once in life. Within the automatic flowering strains, it is one of the tastiest without any doubt, and its medicinal indica effect is very appropriate for many disorders.||The most intense aroma and flavor you can imagine in an automatic variety. Outdoors it can give you away, that’s why we prefer its indoor cultivation, where its contained size is never a problem of height.|
There are many autoflowering marijuana seeds that can give great yields in indoor crops, but if you want to see the best in this regard, do not miss our blog article “The most productive autoflowering varieties”.
Autoflowering sativa seeds
When the first autoflowering strains came out, they were all relaxing and narcotic effect, but with the passing of the years and the breeding work of many breeders and producers, nowadays we have some auto seeds with sativa effect very interesting, and for us these are the 5 best ones:
|Colombian Gold Ryder||Pineapple Express XXL Auto||Auto Cinderella Jack||Chocolope XXL Auto||Original Auto Sour Diesel|
|World Of Seeds brought to market this classic pure Colombian sativa in auto version, and we must recognize that it is very successful, because it maintains the sativa character but with a very fast growing cycle.||Sativa autoflowering very complete, with Hawaiian ancestors that provide an effect of high psychoactivity and total stimulation, with a delicious fruity smoke that falls in love from the first puff.||Great work by Dutch Passion, who managed to stabilize a 100% autoflowering variety with the most outstanding qualities of the legendary Cinderella 99, outstanding power and flavor.||Excellent automatic replica of a great clone of Chocolope selected in Spain. It grows quite a lot, and develops many branches that at the end of flowering end up loaded with buds with euphoric effect of first quality.||The auto version of the best sativa hybrid of America could not miss in this ranking. Intense flavor, clean effect, and large buds, are its hallmarks, and its cultivation is no difficulty.|
question_answer FAQ about Auto Seeds
How many grams can you get from an autoflowering plant?
The normal yield of an autoflowering seed ranges between 30 and 120 grams dry, but as with normal flowering strains, the total yield depends on many factors. There may be autoflowering strains that due to stress or other growing problems yield less than 30 grams, but there are also strains that produce more than 120 grams of ready-to-eat buds.
What is the best time to plant autoflowering plants?
summer is undoubtedly the best season for growing autoflowering plants outdoors, because it is when there are more hours and incidence of light. Indoors it doesn’t matter so much what time of the year they are planted, as long as good environmental parameters are maintained, the autoflowering plants will perform well.
Which are the most productive autoflowering strains?
Auto XXL seeds are usually the ones that produce the most buds. But not all autoflowering varieties of high stature have in their name the term XXL, Magnum, Moby Dick Auto, or Deimos, have nothing to envy in performance to the XL or XXL, so it is interesting to read the data sheets of the seeds before choosing.
How many hours of light does an automatic plant need?
The answer is the more the better, because the more hours of light the higher the production, that’s why we recommend a photoperiod of 18 hours of light and 6 hours of darkness or 20 hours of light and 4 hours of darkness in indoor, and it is better the summer season in outdoor crops.
How to grow autoflowering plants well?
The most important thing is that the plants reach their maximum size before they start to flower. For this it is essential that they have a quality substrate, as spongy and oxygenated as possible, so that the roots can colonize it as soon as possible. A good way to achieve this is to add micro-life mixed with the soil, and/or give it to them in the first waterings. Root stimulator also helps a lot in this regard. Watering is another important factor, it is better to water with osmosis water and PH regulated between 6.0 and 6.5, and respect the dry cycle between waterings. To get the best results it is crucial that they have the maximum possible light, both in time and intensity, and remember that pruning the main tip of the cars is not a good idea.
How big do autoflowering plants grow in bloom?
This type of plant continues to grow quite a bit during flowering, just as sativa genetics do. Normally during flowering they triple the size they had when the first pre-flowers came out, but some only double their size, and some XXL plants can grow up to five times their initial height.
What is the best fertiliser for autoflowering plants?
The best fertilisers for growing autoflowering plants are those specifically for this type of plant, such as Auto Stimulator by B.A.C. or Top Auto by Top Crop for example. But that does not mean that you can not get great results with normal fertilizers for marijuana, the important thing is that they have a good balance between macro and micronutrients.