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Robert Bergman

June 1, 2020

Most weed plants require a certain amount of sunshine to graduate from the vegetative to the flowering phase. This process happens best during autumn because that’s when there starts to be more darkness. This nighttime darkness tells plants it’s about to start getting cold outside. But with the best autoflower strains, the ratio of sun to darkness doesn’t matter.

Autoflowering cannabis strains start the flowering phase naturally after a certain amount of time. This is perfect for growers looking for strains that can transition from germination to harvest quickly. These auto strains can be planted, cultivated, and harvested indoors, no matter what time of the year it is.

White Widow Autoflower

White Widow is an indica-dominant strain with Dutch origins. Brazilian Sativa and South Indian Indica are the parent strains of this Amsterdam coffee shop favorite. Today, it’s the proud parent of such strains as Blue Widow, White Russian, and White Rhino.

Autoflowering strains of this classic experience deliver potent results. When grown in optimal indoor conditions, White Widow Autoflower can yield about 4 ounces of usable cannabis per 3 square feet within 8-9 weeks. The plants grow to heights between 20-24 inches and produce buds that deliver a powerful euphoria with up to 19% THC.

Bergman’s Gold Leaf Autoflower

Gold Leaf Strain
Gold Leaf Strain

Bergman’s Gold Leaf Autoflower is an ILGM favorite. This is one of few autoflowering strains that are not only very easy to grow but also full of high levels of both THC and CBD.  My signature Gold Leaf is a favorite for both therapeutic and recreational use.  

The Indica-dominant seeds consistently grow high yields of 4-6 ounces of smokable marijuana per 3-square-feet within about eight weeks. Indoor growers must ensure that the plants receive an ample amount of light for the plants to reach their full potential.

Blueberry Autoflower

Blueberry Bomb Strain Growing
Blueberry Bomb Strain Growing

Blueberry cannabis has been a craze in the underground pot world since at least 1970. First bred by Oregon marijuana breeder, DJ Short, this hybrid is a mixture of Thailand Sativa, Purple Thai Sativa, and Afghanistan Indica. It took a while. But he was finally able to breed this perfect blend of landrace strains that smokers love so much today.

Download my free Grow Bible and grow your own autoflower strains!


Blueberry Autoflower only grows to about 32 inches tall, making it great for smaller grow sites. However, it still produces pretty high yields in a small amount of space, especially when the seeds are germinated properly. Expect to yield 4-6 ounces of useable cannabis in about eight weeks.

Gorilla Glue Autoflower

Gorilla Glue #1 Growing

ILGM’s version of Gorilla Glue is a creation of the best Autoflower breeders around. We combine three different strains, including Sour Dubb, Chem’s Sister, and Chocolate Diesel. This strain is the child of the award-winning Gorilla Glue #4 and is very popular for therapeutic use due to its decent CBD levels.

These autoflowering Gorilla Glue seeds flourish well in a variety of environments, including rainy, wet climates. The plants are very resistant to mold and mildew, making them a beginner grower’s dream. They produce healthy yet compact plants that are perfect for smaller areas. Expect them to flower within 6-8 weeks and yield about 5 ounces of smokeable cannabis per plant.

Girl Scout Cookies Autoflower

Girl Scout Cookies
Girl Scout Cookies – Image powered by Thcfinder.com

For the best ruderalis strain, turn to Girl Scout Cookies Autoflower. It’s a Sunny California-bred hybrid that’s a mixture of OG Kush Sativa and Durban Poison Indica, making it the most potent autoflowering strain on the market. These Indica-dominant plants resist mold, pests, and frosts. They also grow well in fluctuating temperatures and colder climates, making them a breeze for beginner growers.

These extreme autoflowering seeds require very little upkeep to produce full, short plants, perfect for cultivating in small places. Girl Scout Cookies Extreme Autoflower plants produce crystal-covered, purplish buds that are dense and potent. Expect yields of about 5-7 ounces of usable bud per plant within about eight weeks.

AK-47 Autoflower

AK-47 Strain

AK-47 cannabis traces its origins back to 1990s Netherlands. It’s an award-winning strain with four different parents, including Thailand, Mexico, and South American Sativas, as well as an Afghanistan Indica. This strain requires plenty of sunshine or light to flourish.

AK-47 Autoflower seeds flourish best in humidity-free environments and well-ventilated grow spaces.  They produce compact-sized plants with yields of 4-6 ounces per 3-square-feet. These plants are easy to grow and flower within about eight weeks.

Amnesia Haze Autoflower

Amnesia Haze

Amnesia Haze is a very popular strain throughout Amsterdam and is a favorite sativa dominant hybrid in many coffeeshops. The genetics are well-balanced, with lineages such as Hawaiian, Thai, Cambodian, Jamaican, and Haze. However, there are also South Asian and Afghani Indica genetics to add to the mix. Such a unique combination is the main reason why this hybrid wins so many awards.

Amnesia Haze Autoflower seeds produce small cannabis plants, perfect for small areas, including kitchen planter boxes. They can reach heights of 26 inches, so their yields are fairly high, coming in at about seven ounces per plant. You’ll be ready for harvesting in about 9-12 weeks.

Whether you’re looking for the best Sativa autoflowering strain or autoflowering Indica to grow at home, there are plenty of excellent options. No matter which you choose, your autoflowering strain will most likely be easy to grow and fun to harvest. Get the most from your little plant by starting with high-quality seeds. Visit my seedshop for the best selection of autoflowering cannabis seeds.   

FAQ About Autoflowering Strains

How much does an autoflower strain yield?

Autoflowering plants are usually small and will yield somewhere from 10 to 50 grams per plant. Some exceptions can manage up to 100 grams a plant.

How much water do autoflowers need?

When watering autoflowers, we recommend making your mix in a bottle with just one glass of water per pot.

Are Autoflowers less potent?

No, today autoflowering strains are not any less potent than their feminized counterparts.

The founder of I Love Growing Marijuana, Robert Bergman, is a marijuana growing expert that enjoys sharing his knowledge with the world. He combines years of experience, ranging from small-scale grows to massive operations, with a passion for growing. His articles include tutorials on growing... [read more]

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