big yield autoflower

Top 5 Highest yielding autoflowers

Auto-flowering varieties of cannabis have become increasingly popular among growers in recent years. Auto-flowers cannabis plants take about 13 weeks from germination to harvest. This means that auto-flowering seeds can be harvested in a comparatively short time.

Modern types of auto-flower, such as Gorilla Glue, are pretty much flower-making machines. A large plant can absorb up to a kilo of a dried, smokable, edible and concentrated product. However, not all varieties are the same. The first autoflower strains, such as the infamous Lowrider, hardly produced an ounce, while the modern selectively bred strains produce pleasingly generous quantities. But what are the highest yielding autoflower strains?

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The Top Five Highest Yielding Auto-flowers

Let’s look at the five best yielding autoflowers!

1. Gorilla Glue autoflower

Gorilla Glue autoflower seeds are among our all-time best-sellers with extremely sticky seeds from which it derives its name.


With healthy Indica genes and staggering levels of THC (24%), Gorilla Glue is not for the faint-hearted. Smoking Gorilla Glue autoflower will literally glue you to the couch while you experience the slow onset of its potent effects.


Gorilla Glue auto-flower is very prolific, so you will need to use some kind of support for its leaves and side branches. She can cope with colder climates and has excellent levels of resistance to mould and disease. Want some extra fat buds? Prune your strain regularly.

2. AK-47 autoflower

With buds filled with glittering resin, AK-47 offers a gentle yet unforgettable smoke, that belies the weaponlike imagery of its namesake. The AK-47 auto-flower is a multi-award winning strain that was created by crossing the most robust characteristics of the cannabis Ruderalis strain with Mexican Sativa, Thai Skunk, and the Afghani. The result is a plant with a short lifespan and is also resistant to mould, pests and diseases.


AK-47 auto has a reputation for being a ‘one-hit-wonder’ which means that it takes you one hit to get high. Its trichome-laden buds produce highs that are smooth, heady and strong. The AK-47 is regarded as a classic for a reason. Even though the plant is mainly relaxing Indica, it gives euphoric, intense and positive effects with heightened sociability, which stems more from its Sativa genetics.


The AK 47 auto can be grown indoors or outdoors, although generally does better indoors as it can be prone to bud rot. It grows quickly and vigorously with large flowers that produce good yields. Don’t forget to feed AK 47 during flowering for extra-large blooms.

When grown outdoors, for example, one plant will deliver approximately 110 to 160 grams.

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3. Big Haze auto-flower

Auto-flowers are famous for being easy to grow and quick harvesting. However, many strains have a comparatively small size. This is not an issue for Big Haze Auto seeds which make tall plants capable of producing generous yields.

The Big Haze Auto-flower seeds, despite their fast life cycle, grow into pretty large plants and can produce an abundant crop. This makes the Big Haze a desirable choice for anyone looking for comfort, speed and high production.


Sativa-dominant Big Haze contains high levels of THC content which give feelings of happiness, euphoria and relaxation. It can also alleviate pain and stress but may well give you the munchies so make sure you have plenty of snacks to hand! Haze strains are loved for their exotic aromas and flavors ( and strong effects), and Big Haze auto is no exception, with a candy-like sweet taste with woody undertones.


As with all auto-flowers, growing Big Haze Auto-flower seeds is a piece of cake compared to Indicas and Sativas. The rapid life cycle means that there is less chance for mould and disease to take hold. You can look forward to harvesting the mature plants in as little as eleven weeks after minimal effort. Growing inside is usually more successful in northern European climes. BTW: watch out for spider mite; this is a common pest affecting Haze plants.

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4. Northern Light x Big Bud auto-flower

In as little as fifty days from seed to weed, Northern Lights x Big Bud auto is the creme de la creme of the cannabis crop with its luscious purple blooms and sumptuous orangey aromas. If you need a strain with a generous yield that doesn’t need a lot of nurturing, Northern Lights X Big Bud Auto is the strain for you.


A hybrid of two Amsterdam coffee shop classics, Northern Lights and Big Bud, the hybrid auto-flower version has a delicate taste and a smell that is less intoxicating than its parent, Northern Lights. It has an impressive potency for an autoflower but as the auto’s THC content is also slightly lower, which means you can enjoy its effects without the dreaded couch-lock.


After the seeds have germinated, place straight into a large container with an aerated substrate, such as coconut or a light perlite mix. A hydroponic system would generate even more impressive results. It grows quite tall for an autoflower and produces resin on its leaves. You can grow Northern Lights x Big Bud auto outside. If you have a hot, dry summer, you can expect yields of around 60 g per plant.

Northern Lights x Big Bud has excellent resistance to mould, but you could give it a treatment at the start of the growth phase to be on the safe side.

5. Mazar Auto-flower

Mazar auto-flower is a robust and quick-growing variety that adores the outside as well as the indoors so it is perfect if you are looking for a versatile and forgiving weed. The Mazar auto-flower isn’t a well-known strain, but it has plenty to offer so invest in some seeds now before the whole world hears about it. Impressive yields and low maintenance and lovely effects; what more could you want?


Mazar auto-flowers offer the experience of a typical Indica-dominant strain. What you can expect from an Indica-dominant plant is precisely what the Mazar auto-flowering feminized seeds have to offer with highs that are strong and long-lasting, and even slightly aphrodisiac! The weed has a deliciously spicy taste and induces a relaxed feeling that appeals to practically everyone.


The plants are small and conveniently compact with average heights of 70-80cm, but they thrive and offer massive yields, even for novice growers who can expect around 50 g of weed. Experienced growers reliably harvest over 200g per plant, particularly when using hydroponic systems. The record to date is 900 g!

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How To Get The Biggest Yields With Autoflowering Cannabis


Autoflowers have finally earned the respect they deserve. More importantly, they have earned a place in your grow room. With our guide to achieving maximum yields, you will crop the biggest harvest possible from your autoflowers!


Autoflowers grow blazingly fast and don’t rely on light hours to enter bloom. As they make growing weed a lot more convenient, autoflowering strains have become very popular as more high-quality strains appear on the market.

There are several things growers can do to encourage bigger yields from their autoflowers.


Autoflowering cannabis will race from seedling to stash in a quick 60–90 days. When autos are stressed too much or their growth is otherwise slowed, they will still bloom at the same time, and your yields will suffer.

To max out yield, you should sow seeds directly into their final containers. Alternatively, you can germinate them using the paper towel method (or whatever your preferred germination method may be) and then put them straight into large pots. A healthy root zone must be fostered early.


The bigger the pot, the more the roots will develop and the bigger your plant will be. If you constrain it in a pot that’s too small, your plant’s development and production will be reduced. It is recommended that you use 15–20-litre pots to maximise results without overwhelming your plants. A pot that is too big will be a waste of substrate and fertiliser.


A healthy and strong root system means healthy plants with great yields. Consider “smart pots”, like the RQS fabric pot, to give you an advantage in this domain. With their ability to prevent plants from becoming root bound, fabric pots are better for overall development.

In addition, fabric pots make it nearly impossible to overwater your cannabis as they facilitate excellent drainage.


Autoflowers grow fast and vigorously, and have only a limited time to do so. Because of that, you want to support their growth in every way possible. A loose and airy growing medium makes it easier for your autoflowers to develop a strong root system.

If the substrate is too compact, you can make it suitable for autoflowers by adding some perlite and coco coir. See our article here for more tips on the best soil for your autoflowers.


Another way to support root development is by adding a root stimulant. One good way to do this is by introducing beneficial fungi into your growing medium. Mycorrhizal fungi increase nutrient and water uptake, protect plants from disease, and generally encourage an optimal growing environment.

Easy Roots – Mycorrhiza Mix


Whether you are planning an indoor or an outdoor grow, make sure to start your seedlings indoors.

As you and your plants are on the clock from day one, you want to ensure your seedlings root well. A cool white CFL, appropriate LED, or even a sunny windowsill are adequate. Just make sure vegetative growth goes smoothly; ready or not, your autoflowers will bloom on schedule.


Staking or plant support of some kind may be needed to keep your plants upright and their buds healthy.

There are several ways you can go about this. Bamboo stakes and strings, trellis netting, or tomato plant cages can all be used to help a plant carry its heavy load. If you want more tips, see this article on five ways to support heavy buds.


Opinions differ on whether keeping plants under a constant 24-hour light cycle is beneficial. 18/6 is still the most common, and will save you money on energy.

Indeed, you could potentially grow them with less light, but we are aiming for a huge harvest, so you’ll want to provide them with as many lumens as possible. More light, more buds. Easy.

When grown outdoors, your autoflowers will thrive in the fine summer weather. Sunlight for 18 hours is not essential because Mother Nature’s grow lamp is infinitely more powerful than any artificial bulb.


Your water may be fluoridated or chlorinated, or may contain other impurities that hinder healthy microbial growth in the soil. In short, if your domestic water is unsuitable for drinking, it won’t do good for your cannabis plants either. You can solve this by using reverse osmosis water.

Simply spoken, reverse osmosis is a filtration process that results in pure, ultra-filtered water. With this, you are in total control of the mineral profile of your water. This can benefit the growth of your plants and your yield.


Autoflowers are usually smaller, so they drink and eat less compared to large photoperiod plants. If you’re using ordinary cannabis nutrients, a good idea is to start out with 50% or even 25% of the recommended dose.

Soil growers are advised to use lightly fertilised soil for autoflowering cannabis. Heavily fertilised soils will burn these babies. Aside from supplements like enzymes, vitamin B, and beneficial fungi, autoflowers don’t really require large doses of base nutrients during their short vegetative stage. Heck, with good-quality soil, your plants may do just fine without additional nutes all the way to harvest.

If you must add nutrients to the soil early on, do so sparingly. Generally, bloom nutrients and boosters are all that’s needed during their life cycle. Even in flowering, low to medium doses of nutrients will suffice. Over-fertilising plants is a common yield-thwarting mistake autoflower growers often make.

Easy Combo Booster Pack

If the pH is off, your plants can’t uptake nutrients even if they are present. The correct pH for your water when growing in soil is 6.0–7.0. With a few drops of pH up or down products, you can adjust your water to the correct pH window.


Seedlings and young plants prefer a more humid environment, while flowering plants require significantly less humidity to avoid mould and rot.

At times, just a simple standing fan or leaving a window open is all that’s needed to create an optimal growing environment. If that doesn’t cut it, look into solutions such as a heater or air conditioner for your grow room.

12. USE CO₂

It is scientifically proven that plants use CO₂ as fuel for photosynthesis, and with more CO₂ in your grow space, there should be a noticeable difference in growth rate and size.

The thing is, it only makes sense to provide your plants with CO₂ if all the other conditions in your grow room are already optimal. If there are issues with temperature, humidity, water, or nutrients, address these first before looking into a more elaborate (and expensive) CO₂ system.


Low-stress training (LST) is a non-destructive training technique that even beginners can use. As the name implies, it is a minimally invasive technique that doesn’t involve any major damage to plants.

All you do is carefully bend and tie down the stem and branches to encourage lateral growth. This way, more bud sites are exposed to your grow light, resulting in fatter nugs and bigger harvests.

If you’re an expert grower and not afraid to put a knife to your plants, you can see whether topping will work for you. Just ensure that everything else is under control before looking into these more-involved plant training techniques.


The sea of green, or SOG, method involves growing many small plants in close proximity to max out space and yields. This is especially effective in otherwise small grow-ops, and there is no better candidate than autoflowering strains. Their fast growth and short stature essentially do everything for you. Plus, no pruning or excessive handling is needed.


It normally happens that the flowers at the top of the canopy mature faster than those at the bottom. Simply clip off the individual buds that are ready, and wait for the rest to ripen. Wait 1–2 weeks between each harvest and watch for signs that they’re ready to pick. Most autoflowering plants only require two cycles of progressive harvesting, but larger plants may need more.


Nobody is born a master cannabis grower. To become an expert, you want to pay attention and carefully record each process used in your grow. Only this way will you notice which techniques render the best yields.

Something can always go wrong when growing cannabis. The key to high yields is swiftly and smartly identifying problems as they occur. As you refine your processes, the health and yields of your plants will improve over time.


Perhaps more important than any other factor listed above, genetics have a huge influence on a given strain’s production potential. So, before we conclude our guide on achieving maximum yields with autoflowers, here is a list of the highest-yielding autoflowers from Royal Queen Seeds.


Northern Light is a legendary cannabis strain that derives from Afghan indica genetics. First bred in the 1970s US, and coming to Europe in the 80s, this indica is still a favourite among many cannabis lovers. The autoflowering variant Northern Light Automatic shines with all the goodies of the “big one”, without compromising on flavour and effect. Moreover, she is one of the highest-yielding autoflowers out there with a whopping 550g/m² indoors. She pleases with a sweet, earthy pine flavour and a cerebral effect that is happy and uplifting.

Autoflowering cannabis has come of age now both potent and productive. With our simple 10 step guide, your next autoflowering marijuana harvest will be huge. ]]>