How much yield can I expect from a single Autoflower plant?

Autoflowering cannabis flowers automatically, regardless of the light cycle a grower exposes to it. This makes it a popular choice for beginner growers since there’s less room for error. In general, auto-flowering cultivars tend to yield less than photoperiod cultivars. 

This article will discuss the various factors determining autoflower yield and how to maximize them. By understanding potential auto flower yield and taking the proper steps to optimize your grow, you can enjoy a fruitful harvest of high-quality cannabis.

What is the yield per plant (exactly)?

Autoflower yield per plant is a measure of the amount of cannabis that a single plant can produce. It is denoted in grams, ounces, and pounds. Yield can vary significantly depending on various factors, such as the genetics of the plant, the growing conditions, and the skill of the cultivator.

Regarding autoflower yield, growers often wonder if autoflower varieties produce less weight and THC than photoperiod plants. Whereas autoflowers often make less weight, the THC content of autoflowers varies in auto-flowering plants as much as it does in photoperiods.

bergman holding autoflower plant

Buy Autoflower Seeds

  • For new and experienced growers
  • Easy-growing, low maintenance
  • All popular cultivars

Why do autoflowers yield less than regular photoperiod and feminized flowers?

Autoflowers can trace their lineage through Siberia and Central Asia, where researchers discovered and observed smaller, shorter, and bushier cannabis plants. This smaller stature is a byproduct of the plant having shorter vegetative cycles due to its automatic flowering. These ruderalis genetics are not present in feminized and regular seed varieties. As a result, photoperiod plants have a longer vegetative period than autoflowers.

Why do autoflowering plants yield better than photoperiod plants in harsh conditions? 

When studying the hemp cultivar FINOLA, University College Dublin found that autoflowering plants yield more flower and grow faster when placed between 40ºN – 50º N. 

What’s the average yield I can expect from my autoflower seeds?

You have your tent, nutrients, your seeds, and you’re ready to grow… now what do you expect when it’s all said and done? How much weed does an autoflower produce? Aside from the average autoflower harvest beginners can expect, we’ll provide some tips for growing autoflower plants that can boost your results. We’ll dive into what you can expect from an average autoflower yield, outdoor and indoor autoflower yield, and different autoflower tips and tricks that will set you up for success. 

Autoflower yield
Example Autoflower yield

How much yield can I expect from a single Autoflower plant?

It is difficult to predict an autoflower harvest yield accurately; it can vary significantly depending on various factors such as the specific strain, the growing conditions, and the skill of the cultivator. However, some auto-flowering cultivars can produce yields of up to a few hundred grams per plant, while others may yield less than 100 grams per plant.

Depending on various factors, auto-flowering plants can range in yield from 50-250 grams per plant on average. When posing the question, “how much do autoflowers yield?” you must consider growing conditions, cultivar genetics, and the grower’s skill.

Growing autoflower strains is a simple process that requires basic knowledge of plant cultivation and some attention to detail. Download my FREE marijuana grow bible and follow the step by step process for the best yield.

How much weed do you get from an autoflower? 

GeneticsDifferent cannabis strains have different potential yields; some cultivars produce higher yields than others. Particular genetics make plants more vigorous than others due to being crossbred for generations with higher-yielding plants.
Growing ConditionsGrowth conditions can massively impact the yield of an autoflower, including factors such as temperature, humidity, lighting, light intensity, and the quality of the growing medium.
Skill levelThe grower’s skill level can also impact the yield of an autoflower cannabis plant. Your first autoflower grow yield may not be as high as later attempts.  More experienced growers can optimize their growing conditions and techniques to maximize yield. 
Phenotype (strain)Even within a genetic lineage, certain phenotypic and chemotypic expressions (visible and chemical characteristics of the individual plant) of autoflowers will yield more/less than others. Searching for the right phenotype is essential when looking for a keeper. That’s why ILGM’s Autoflower seeds are stocked with reliable genetics that will give you stable phenotypic expression.
Outdoor vs. IndoorAutoflower cannabis plants can be grown indoors or outdoors, and the yield of a plant may vary depending on where it is grown. Autoflower yield per plant indoor can vary but typically has more control and a lower yield. Outdoor growing environments may be more challenging to control quality and produce higher yields.

Indoor yield

When considering autoflower yield indoors, it’s all about the environment. Indoor yields typically range from 50-120g/plant.  

Outdoor yield

Although you have less control of the environment and a higher susceptibility to pests and diseases, given good conditions, outdoor autoflowers can yield from 100-200g/plant. 

Small autoflower yield

Average autoflower yield ranges from 50-100g/plant.

SUPER Autoflower yield

Super autoflowers have been the crowning achievement of autoflower breeding. Autoflower breeding has come far since Lowryder, the first autoflower cultivar, was introduced to the market. With growers selectively choosing larger and more potent breeds, autoflower plants are at a point where they are almost competitive with standard photoperiod plants. 

While a typical autoflower may produce 50-100g/plant, super autoflowers can produce from 100-200g/plant on average.

How to get bigger yields from autoflowers

Indoor vs. outdoor

When growing autoflowers indoors, it’s easiest to maximize autoflower yield by optimizing lighting, nutrient schedule, climate, and airflow.

Outdoor vs Indoor Auto Marijuana Growing
Outdoor vs Indoor

With outdoor autoflower cultivation, yield maximization comes from choosing proper genetics for the environment and ensuring your plant gets as much sunlight as possible.

Pots and container size

To maximize yield, you should sow seeds directly into their final containers. With autoflowers having such quick growth cycles, you can’t risk stunting your plant’s growth by transplanting them to their final pot. 

While growing indoors, it may make sense to grow in 1.5-2.5 gallon pots to maximize how many autoflowers per square foot your space can support. Growing more plants at a time helps make the most of your yield. 

With outdoor growing, the largest recommended is a 5-gallon pot. This provides ample room for roots to grow.

Here’s some different pot sizes, and the average yield you can expect using each container:

  • 2L: 100–150g/m² indoors or 35–40g/plant outdoors
  • 5L: 200–250g/m² indoors or 75–85g/plant outdoors
  • 11L and bigger: 400–500g/m² indoors or 150–170g/plant outdoors

Nutrients and Root Stimulants

To maximize the yield of autoflowers, it’s important to use the right nutrients and feeds to boost vegetative growth. Nitrogen is especially important during the vegetative cycle; adding this nutrient is how to grow big autoflowers.  Nitrogen aids the process of photosynthesis, maximizing your veg growth. ILGM’s line of fertilizers covers all stages of plant growth to give you the best-producing, vigorous-growing, highest-quality buds you can grow.

Marijuana fertilizer set

Buy Cannabis Nutrients

  • Marijuana fertilizer set
  • Plant protectors
  • Grow kits
  • Marijuana grow bible
Read about nutrient composition here!

When working with clones or tiny seedlings, try applying root-stimulating hormones to spur faster growth. With autoflowers, root stimulants are ideal due to their faster veg and flower cycles. Kickstarting root growth is key in allowing your plants to take up as many nutrients as possible, thereby boosting your autoflower average yield!

Training: LST & HST

Low-Stress Training (LST) is an ideal solution to maximizing your autoflowers’ yield because they won’t stunt the growth of the plant in a significant way. ScrOGging is a perfect training method since it opens your canopy and allows for customizing it without harming the plants. When autos have tight timelines, like nine weeks of growing from seed to harvest, it’s essential to maximize the time you have to make your plant robust while ensuring you don’t sour your harvest.

HST vs LST cannabis plants
HST vs LST cannabis plants

High-Stress Training (HST) is a hazardous choice for your training method with autoflowers because they don’t have enough time to repair themselves. With that time crunch, if you top your plants and they don’t thrive afterward, you’ll be left with a stunted plant that won’t produce as much yield as alternative training methods (or not training your plant at all!).

18/6 light formula

While growing photoperiod plants, the typically recommended amount of light is 18 hours with 6 hours of darkness to allow the plants to rest. With autoflowers, growers will use this same light cycle, or even up to 22 hours, to maximize the plant’s growth in the short amount of time it has from seed to harvest.


The “Screen Of Green” method is a form of low-stress training where plants are distributed across an even canopy to produce more top buds. Manipulating the branches allows for an open canopy for light and airflow. This method is the perfect tool to maximize your autoflower yield because it doesn’t stunt plant growth and allows the plant canopy to be as spread out as possible.

ilgm scrog 2 months
ScrOG results

Top Autoflower Grow Tips to Try

  • Supplement with Nitrogen
  • Use Root Stimulants
  • Practice Low-Stress Training
  • Utilize Screen of Green

What Causes Low Autoflowering Yields?

A variety of issues can cause poor autoflower yields. Here are some of them: 

Poor growing conditionsAutoflower plants need sunlight, good air circulation, and a balanced nutrient regimen to thrive. Your plants may only grow and produce good yields if these conditions are met.
Pest and disease problemsPests and diseases can attack cannabis plants and cause damage that reduces yield. Regularly check your plants for signs of pests and diseases and take steps to control them.
Take preventative measures to keep bugs out using our Plant Protector collection.
Autoflower vs. PhotoperiodSince autoflowers change from veg to flower on a faster schedule, veg cycles are smaller, leading to fewer training opportunities and smaller plants.
Nutrient deficiencies& Over/under wateringCannabis plants need various nutrients to grow and produce a good yield. A lack of these nutrients can affect growth and yield.  Proper watering is necessary for keeping your cannabis healthy and growing. Overwatering leads to root rot; underwatering can shock your plants.
Poor geneticsBreeders select genetics based on different characteristics; some are not as concerned with the plant’s yield as pest resistance, terpenes, or unique traits.

Autoflower Strains with Reliable Yields 

Finding genetics with reliable yields is an important aspect of your grow, and it happens before you even water your first plant! These autoflower genetics produce reliable yields and respond well to training, bringing quality and quantity to your garden.

You can test it out yourself by getting your autoflowering seeds from the link below.

bergman holding autoflower plant

Buy Autoflower Seeds

  • For new and experienced growers
  • Easy-growing, low maintenance
  • All popular cultivars

Girl Scout Cookies Extreme

GSC auto marijuana strain
GSC Extreme Auto Strain

An excellent choice for beginners, GSC Extreme is mold resistant. It does best in warmer, more humid climates. 

Plant type80% Indica 20% Sativa
THCUp to 21%
CBDInsignificant amounts
ClimateIndoors | Mediterranean
Plant sizeSmall
Grow time10 – 14 weeks
Yields5 to 15 oz per 3x3ft
Taste & SmellDiesel | Earthy | Herbal | Lemon | Pungent | Skunky | Spicy | Sweet
EffectsCreative | Euphoric | Happy | Relaxed | Uplifted
GSC auto marijuana strain

Buy GSC Auto Seeds

  • 80% Indica 20% Sativa 
  • High THC levels up to 21%
  • Good yields indoors and outdoors
  • Easy going relaxing high

White Widow

White widow marijuana auto strain
White Widow Auto Strain

This vigorous plant is resistant to pests and diseases and handles well in most weather. White Widow is a perfect choice for a potent, hardy yield. 

Plant type60% Indica 40% Sativa
THCUp to 19%
CBDInsignificant amounts
ClimateIndoors | Temperate | Mediterranean | Steppe
Plant sizeCompact
Grow time10 – 14 weeks
Yields5 to 15 oz per 3x3ft
Taste & SmellEarthy | Herbal | Pungent | Spicy | Sweet | Woody
EffectsCreative | Euphoric | Happy | Relaxed | Uplifted
AwardsCannabis Cup Winner 1995
White widow marijuana strain

Buy White Widow Auto Seeds

  • 60% Indica 40% Sativa
  • THC levels up to 19%
  • Very easy to grow plants
  • Euphoric high with powerful mental buzz

Gorilla Glue

Gorilla Glue Auto Strain
Gorilla Glue Auto Strain

This Original Glue is ideal for growers looking for a quick turnaround time and a reliable harvest.

Plant type50% indica 50% sativa
THCUp to 26%
CBDInsignificant amounts
ClimateIndoors | Steppe | Mediterranean
Plant sizeCompact
Vegetative stage3 to 4 weeks
Flowering time7 to 10 weeks
Yields5 to 15 oz per plant
Taste and SmellEarthy | Pine | Sour | Sweet
EffectsHappy | Uplifted
AwardsCannabis Cup | Jamaican World Cup
Gorilla Glue Auto Strain

Buy GG4 Autoflower Seeds

  • 50% indica 50% sativa
  • Extreme THC levels up to 26%
  • Very easy to grow, great for beginners
  • Great for relaxation but uplifting as well

Gold Leaf

Gold leaf marijuana auto strain
Gold Leaf Auto Strain

Bred by our very own Robert Bergman, Gold Leaf is a potent cultivar that is easy to grow indoors or outdoors. It produces a pungent aroma and a sweet taste. 

Plant type60% indica 40% sativa
THCUp to 21%
CBDInsignificant amounts
ClimateIndoors | Steppe | Mediterranean | Continental
Plant sizeCompact
Vegetative stage3 to 4 weeks
Flowering time7 to 10 weeks
Yields5 to 15 oz per plant
Taste and SmellEarthy | Herbal | Pungent | Spicy | Sweet
EffectsEuphoric | Happy | Relaxed | Uplifted
Gold leaf marijuana seeds autoflower

Buy Gold Leaf Auto Seeds

  • 60% indica 40% sativa
  • High THC levels up to 21%
  • Consistently easy growing plant
  • Robert Bergman’s own strain!

Autoflowers have a reputation for producing low yields, but with proper growing techniques and reliable yield cultivars, growers can still achieve respectable harvests. To increase your chances of good autoflower yield per plant, provide optimal growing conditions, use techniques such as LST and ScrOGging, and choose reliable autoflower genetics like the four we listed above.

Are you ready to grow high-yielding, quick-growing cannabis? Check out the autoflowers at ILGM.  


Is 20 hours of light too much for an autoflower plant?

No, an autoflower plant requires eight or more hours of light and usually 22 hours or less of lighting. The amount of lighting a cultivator uses should depend on their grow approach or the cultivar’s genetics. Indica plants fare better with shorter light cycles, whereas sativas thrive on longer light cycles, going up to 18 hours.

Do commercial growers use autoflowers?

Though commercial growers may utilize autoflowers for their short timeframe, most commercial growers use photoperiod cannabis plants.

Do Autoflowers take longer in bigger pots?

No, autoflowers will take the same amount of time in any pot due to not responding to light cycles. Although a larger pot may help achieve a larger plant yield, a pot that is too large will cause you to waste your feed and nutrients

Avatar for Nigel Deez

Nigel Deez

Cannabis Cultivation Expert

Working in America's legal cannabis industry for the past 6 years, Nigel Deez bring various experiences to the table. Startin ... See profile

1 comments on “How much yield can I expect from a single Autoflower plant?”