English Bulgarian Chinese (Simplified) Chinese (Traditional) Japanese Thai Croatian Czech Danish Dutch French German Greek Hebrew Italian Korean Lithuanian Norwegian Portuguese Spanish Swedish Turkish
View our Great Reviews on Reviews.io

Cheap Discrete Delivery on all orders! Huge Selection, Tiny Prices!

HUMB & TBUD & TERP 25% Sale! Ends
 
Seed
Selector
Price
Stock Availability
    + View All Stock Availabilitys
      Breeder
        + View All Breeders
          Seed Type
            + View All Seed Types
              Available as Single Seed
                + View All Available as Single Seeds
                  Sale Item
                    + View All Sale Items
                      Most Popular Seeds
                        + View All Most Popular Seeds
                          Flowering Period Type
                            + View All Flowering Period Types
                              Indica/Sativa
                                + View All Indica/Sativas
                                  Cannabinoid Profile
                                    + View All Cannabinoid Profiles
                                      Environment
                                        + View All Environments
                                          Strength
                                            + View All Strengths
                                              Yield
                                                + View All Yields
                                                  Indoor Height
                                                    + View All Indoor Heights
                                                      Experience Required
                                                        + View All Experience Requireds
                                                          Hardiness
                                                            + View All Hardiness
                                                              Strain Type
                                                                + View All Strain Types
                                                                  Medical Strains
                                                                    + View All Medical Strains
                                                                      Cup Winner
                                                                        + View All Cup Winners
                                                                          Indoor Flowering Time
                                                                            + View All Indoor Flowering Times
                                                                              Outdoor Harvest Time
                                                                                + View All Outdoor Harvest Times
                                                                                  Smell/Taste
                                                                                    + View All Smell/Tastes
                                                                                      Total products: 1815

                                                                                      We are sorry for the inconvenience but are not accepting orders at this time.

                                                                                      Browse Cannabis Seeds

                                                                                      Autoflowering Cannabis Seeds


                                                                                      Buy Premium Autoflower Seeds Online


                                                                                      Our cannabis seed bank has a vast amount of autoflower seeds for sale and from all over the world. Find auto flower seeds from the USA, and popular strains from there! Autoflower cannabis seeds are a hybrid of ruderalis strains. By crossing photoperiod cannabis plants with ruderalis hybrids, breeders could create cannabis strains that mature within 8 to 9 weeks automatically. Today, breeders can create auto-flowering marijuana plants with good yields, high THC concentration, and a short flowering period with the advancement of selective breeding.


                                                                                      Auto Flower Cannabis Seeds Vs. Photoperiod Weed Seeds


                                                                                      The growth cycle of a cannabis plant is essential for agriculture, cloning, and harvest. The vegetative phase starts when seedlings begin to grow, absorb light, and reach their height. At the end of the vegetative stage, the cannabis plant enters the flowering stage, and as the name suggests, this is when the juicy buds and terpenes are created. There seems to be a lot of confusion regarding the difference between photoperiod weed seeds and auto-flowering seeds. The process can be simplified for educational purposes.

                                                                                      Marijuana is naturally a photoperiod plant which means it relies on a light cycle to bloom. Therefore, photoperiod weed seeds can germinate and enter the vegetative phase either indoors or outdoors. Photoperiod weed seeds entering the vegetative phase indoors require a 12-12 light cycle. This entails that to begin flowering, a cannabis plant needs 12 hours of light and 12 hours of darkness over 24 hours. Now the light schedule differs for photoperiod cannabis plants grown in an outdoor setting. As a general rule of thumb, marijuana plants entering the vegetative phase outdoors begin to flower when the daylight hours drop below 15.


                                                                                      So, What are Auto Flower Cannabis Seeds?


                                                                                      Auto-flower weed seeds do not depend on the light cycle to begin flowering. Instead, once the cannabis plant reaches a certain age, it starts to flower automatically. This ability to flower independent of the light cycle (and season) gives auto-flowering cannabis seeds its unique feature.


                                                                                      Breaking Down the Pros and Cons of Autoflower Cannabis Seeds


                                                                                      Autoflower cannabis seeds have been reported to produce fat and juicy buds: The plant establishes its size roughly around 1 to 2 months of maturity. Autos don't grow tall, but their buds begin to fatten during their lifespan.

                                                                                      Reports show that the autoflower weed seeds are good for beginners! Auto flower cannabis seeds don't rely on a light cycle to bloom. Instead, they will begin to enter the vegetative phase on their own once they reach a certain age. As they require little intervention and maintenance, Autos have been a great choice for beginners.

                                                                                      The THC content is comparable to photoperiod marijuana strains. Photoperiod cannabis seeds take a lot longer to grow, flower and develop their rich terpene profile. For this reason, buds from photoperiod marijuana seeds have always been considered superior to that of autos. However, the evolution of cannabis genetics has come a long way. Today, records show breeders can produce auto flower seeds containing moderate to high THC levels, creating plants with a spectacular and intense high.


                                                                                      Some Cons You Should Know About Autoflower Marijuana Seeds


                                                                                      Autoflower marijuana seeds cannot be cloned: Cloning is a form of asexual reproduction which involves cutting a branch from a mature female cannabis plant (referred to as a mother plant) and regrowing a new plant. Marijuana grown from its mother plant will be genetically identical, and this is what is referred to as cloning. A clone of an auto-flower marijuana plant would be the same age as its mother plant; thus, it would not develop. For this reason, auto-flower weed seeds make poor mothers and cannot be cloned.

                                                                                      Flavour profile and potency: When it comes to potency, auto-flower cannabis plants may not always be the best choice partly because their short life-cycle limits their THC concentration. Photoperiod marijuana plants have more time to develop a unique flavour profile and THC concentration. As a result, it is generally reported that photoperiod marijuana plants are a lot more potent than autos. With the advancement of genetic breeding, many cannabis seed breeders cultivate auto seeds with a moderate THC concentration.

                                                                                      The yield may be lower: Auto-flower weed seeds begin to flower once they reach a certain age, so this often limits their growth and development. In contrast, the growth of a photoperiod plant is controlled by the light cycle which means they can remain in the vegetative stage for a more extended period and grow to greater heights and develop more potent buds.


                                                                                      Our Massive Autoflower Seed Bank


                                                                                      There are many benefits to choosing auto-flower seeds. With auto-flower marijuana seeds, online forum users report a fast harvest, multiple yearly crops, good yields, and good flavors. At Seed-City, we take pride in stocking some of the best auto-flower seeds from top breeders worldwide. So, check out which of our legendary autos interest you the most.

                                                                                      White Widow Autoflower Seeds


                                                                                      The White Widow auto flower marijuana is genuinely a legend amongst cannabis connoisseurs. She is a hybrid of the original White Widow, a photoperiod plant, and the Critical+ Autoflower. White Widow auto-flower seeds are reportedly suited for beginner growers as their complete life-cycle averages 75 to 85 days with a yield of 190 to 240 g/plant. Their THC concentration is generally low, averaging at 15%. The White Widow has been reported as creating a smooth high, quite calming and relaxing. Her flavor profile is subtle but delicious, with the expectation of bursts of sweet citrus with notes of earth, floral, and sandalwood.

                                                                                      Northern Lights Autoflower Weed Seeds


                                                                                      The Northern Lights Auto-flower seeds is an Indica dominant plant that is a hybrid of the original Northern Lights and a Ruderalis strain. Northern Lights is known as an excellent strain that can make a great addition to a cannabis connoisseurs collection . This auto strain's average flowering time is 9 weeks, and it has been reported that a reasonable yield of 200 g/ plant (outdoors) and 550 g/m2 (indoors) is expected. A feature distinctive to this auto strain is her flavour and aroma profile, which online forum users often describe as a sweet fruity fragrance with pine and earth notes. Northern Lights boasts a moderate THC concentration of 14%. The high is reported as body-buzzing and calming.

                                                                                      BCN Critical Autoflower Cannabis Seeds


                                                                                      The BCN Critical Autoflower cannabis seeds by Seed Stockers is Seed-City's most popular auto-flower marijuana strain. Boasting a modest THC concentration of 22%, this auto-flower strain has been reported as having a deep, long-lasting high. It's reported that among the various auto-flowering strains, the BCN Critical Autoflower cannabis seeds are suited to both indoors and outdoor, where it has an average flowering period of 75 days. BCN Critical Mass has a sensational flavour profile, with reports of her buds producing a sweet and tangy citrus flavour. Sources show that this auto flower weed seed is very hardy, making her popular amongst a wide range of cannabis seed collectors.

                                                                                      Autoflowering Seeds

                                                                                      Order by:

                                                                                      Pineapple Express - FastBuds

                                                                                      4 Stars
                                                                                      7

                                                                                      There’s no doubt you’ve heard of Pineapple Express. Ever since Seth Rogan signal boosted the iconic strain by naming a comedy film after it, Pineapple Express h...

                                                                                      $32.18
                                                                                      $35.75
                                                                                      You Save:  10.00%

                                                                                      Purple Lemonade - FastBuds

                                                                                      3 Stars
                                                                                      2

                                                                                      Purple Lemonade strain has a unique purple hue, sweet aroma, and fruity flavor. Uplifting high followed by relaxation.

                                                                                      $42.96

                                                                                      Blackberry - FastBuds

                                                                                      0 Stars
                                                                                      0

                                                                                      Flavorful, potent strain with relaxing effects. Compact plant with high resin production, suitable for indoor cultivation.

                                                                                      $35.75

                                                                                      Dark Devil Auto - Sweet Seeds

                                                                                      4 Stars
                                                                                      7

                                                                                      Purple genetics, fast flowering, sweet aroma, dark buds. Strong hybrid vigor, resin production. Multiple awards.

                                                                                      $32.55

                                                                                      Purple Haze Auto - Original Sensible Seeds

                                                                                      1 Stars
                                                                                      1

                                                                                      Legendary strain with mind-blowing effects, easy to grow, fast harvest. High tolerance to pests, disease. Ideal for self-medicating or commercial growing.

                                                                                      $15.74

                                                                                      Skywalker OG Auto - Barneys Farm Seeds

                                                                                      0 Stars
                                                                                      0

                                                                                      Potent, tranquilizing strain with short plant height. Heavy yields in 70-75 days.

                                                                                      $21.41
                                                                                      $28.55
                                                                                      You Save:  25.00%

                                                                                      Purple Runtz Cake Auto - Purple Caper Seeds

                                                                                      0 Stars
                                                                                      0

                                                                                      Rare Purple Runtz Cake seeds for sale, popular globally. Cross of purple Kush and Runtz cake, sweet smell and beautiful colors.

                                                                                      $131.40

                                                                                      SALE - Auto White Widow x Big Bud - Female Seeds - Female Seeds

                                                                                      0 Stars
                                                                                      0

                                                                                      Popular strain with fruity skunky aroma, relaxant effect, and full of flavor. Height 80-90cm, high yield in 10 weeks.

                                                                                      $9.61
                                                                                      $19.21
                                                                                      You Save:  50.00%

                                                                                      SALE - Royal Purple Kush Auto - Emerald Triangle - Cannabis Seed Sale Items

                                                                                      0 Stars
                                                                                      0

                                                                                      Vigorous growth, large colas, purple coloring, complex flavor, high cannabinoid levels, balanced high. Genetics: Black Afghani x Bubba Kush. Harvest in 55 days.

                                                                                      $10.09
                                                                                      $20.17
                                                                                      You Save:  50.00%

                                                                                      Green Crack - FastBuds

                                                                                      5 Stars
                                                                                      4

                                                                                      High-energy, fruity strain with spicy sweet mango taste. Easy to grow indoors or outdoors, high THC content, impressive yield.

                                                                                      $35.75

                                                                                      BCN Critical XXL Autoflower - Seed Stockers

                                                                                      5 Stars
                                                                                      55

                                                                                      High-yielding, flavorful strain for easy growing with potent, creative high. Hardy and reliable, perfect for any grower.

                                                                                      $17.88

                                                                                      MAC1 Autoflower - Growers Choice

                                                                                      0 Stars
                                                                                      0

                                                                                      Potent strain with up to 35% THC. Short 11-week flowering time, heavy buds.

                                                                                      $21.34

                                                                                      SALE - Big Bud Auto - Double Seeds - Double Seeds

                                                                                      0 Stars
                                                                                      0

                                                                                      High yielding strain with compact buds. Ideal for Sea of Green method, 60-95cm tall. Indica dominant, 25% THC.

                                                                                      $21.55
                                                                                      $43.10
                                                                                      You Save:  50.00%

                                                                                      SALE - Auto Wappa - Paradise Seeds - Cannabis Seed Sale Items

                                                                                      0 Stars
                                                                                      0

                                                                                      Fast-growing strain with big yields, sweet fruity taste, and potent effects. Suitable for indoor and outdoor cultivation, with a 60-70 day seed-to-harvest time.

                                                                                      $14.39
                                                                                      $28.78
                                                                                      You Save:  50.00%

                                                                                      Candy Kush Automatic - Auto Seeds

                                                                                      0 Stars
                                                                                      0

                                                                                      California genetics create high-yielding strain. Easy to grow, mold/pest resistant. High THC/CBD for pain relief, insomnia. Sweet, heady smoke with spice notes.

                                                                                      $21.21

                                                                                      Auto Purple Gorilla - Short Stuff Seeds

                                                                                      3 Stars
                                                                                      1

                                                                                      High-yielding strain with explosive growth, dense buds, citrus aroma, potent effects, and resin production. Yields up to 10 oz/plant in 10 weeks.

                                                                                      $36.13

                                                                                      LSD-25 - FastBuds

                                                                                      5 Stars
                                                                                      3

                                                                                      High-THC strain with psychedelic effects and purple coloring. Easy to grow, forgiving of mistakes, and fast flowering. Indoor/outdoor cultivation.

                                                                                      $35.75

                                                                                      Auto AK 47 - Serious Seeds

                                                                                      0 Stars
                                                                                      0

                                                                                      Compact plants with citrus aroma, flowering in 70 days. Yield 45-70 grams per plant indoors.

                                                                                      $13.31

                                                                                      SALE - Auto Black Sundae - Penthouse Cannabis Co - Penthouse Cannabis Co

                                                                                      0 Stars
                                                                                      0

                                                                                      Fast-growing strain with high THC levels, ready to harvest in about 60 days. Derived from Black Cherry Soda and Sundae Driver.

                                                                                      $11.31
                                                                                      $22.63
                                                                                      You Save:  50.00%

                                                                                      Mimosa Cake Auto - FastBuds

                                                                                      5 Stars
                                                                                      2

                                                                                      Fast-flowering strain with fruity aroma, 24% THC, balanced effects for day and night use. Ideal for extractions and resin production.

                                                                                      $42.96

                                                                                      Purple Haze Auto - PowerStrains

                                                                                      0 Stars
                                                                                      0

                                                                                      Fast-growing, high-yielding strain with original genetics. Offers creative, uplifting high in 9-10 weeks.

                                                                                      $36.02

                                                                                      Gorilla Auto - FastBuds

                                                                                      4 Stars
                                                                                      5

                                                                                      Prestigious strain with multiple awards. Complex flavor profile, euphoric high, and massive yields. High THC levels for a potent experience.

                                                                                      $42.96

                                                                                      AK 48 Automatic - Nirvana Seeds

                                                                                      0 Stars
                                                                                      0

                                                                                      Potent strain with quick flowering time, hard buds, strong aroma. Good for stress, depression, insomnia.

                                                                                      $6.44

                                                                                      Gorilla Punch Auto - FastBuds

                                                                                      0 Stars
                                                                                      0

                                                                                      High THC, purple buds, potent effect, large yields, tasty terpenes, social use, anxiety relief, creativity.

                                                                                      $42.96

                                                                                      Blue Auto Mazar - Dutch Passion Seeds

                                                                                      0 Stars
                                                                                      0

                                                                                      Potent hybrid with heavy yields, connoisseur-quality parentage, and a strong, happy, sedating effect. Ready to harvest in 75 days, producing 75-100g per plant.

                                                                                      $33.88

                                                                                      Red Banana Berry Double XL Auto - Growers Choice

                                                                                      0 Stars
                                                                                      0

                                                                                      Visually striking strain with high THC content, versatile growing characteristics, and delightful experience for cannabis connoisseurs.

                                                                                      $21.34

                                                                                      SALE - Gouda's Grass Auto - Vision Seeds - Cannabis Seed Sale Items

                                                                                      0 Stars
                                                                                      0

                                                                                      Medium height, medium difficulty strain with stress relief and anti-depression benefits. Euphoric, happy, uplifting effects. 75% Indica - 25% Sativa.

                                                                                      $12.17
                                                                                      $24.35
                                                                                      You Save:  50.00%

                                                                                      Banana Purple Punch Auto - FastBuds

                                                                                      0 Stars
                                                                                      0

                                                                                      Potent strain with fruity taste, yields up to 550gr/m2 in 56 days. Sedative effect.

                                                                                      $42.96

                                                                                      Super Lemon Haze Auto - Green House Seeds

                                                                                      0 Stars
                                                                                      0

                                                                                      Sativa-dominant strain with fast-hitting high. Indoor flowering 7 weeks, outdoor 7 weeks. Medium-short plant with good branching.

                                                                                      $10.73

                                                                                      Cream Cookies Auto - FastBuds

                                                                                      5 Stars
                                                                                      1

                                                                                      High-yielding Indica-dominant strain with Girl Scout Cookies genetics. FastBuds creates stable autoflower strains. Trusted source for cannabis seeds.

                                                                                      $35.75
                                                                                      Last Updated Was Exactly: Wednesday, 30 April 2025 00:42
                                                                                      Cannabis Seed Cart



                                                                                      Testimonials
                                                                                      Affiliates

                                                                                      Become an affiliate of

                                                                                      Become a Seed City Affiliate

                                                                                      Newsletter
                                                                                      Sign up for Our Newsletter



                                                                                      Joomla : Seed City
                                                                                      Social Media
                                                                                      Follow Seed City on Facebook Follow Seed City on Instagram Follow Seed City on Twitter Follow Seed City on Google Plus 
                                                                                      Banner
                                                                                      Copyright © 2025 Seed City. All Rights Reserved. Terms of Service and Privacy Policy /
                                                                                      Site Map / Autoflower Seeds / Feminized Seeds / CBD Seeds / 420 Seeds