Automatic cannabis seeds

The auto-flowering gene occurs only in Cannabis Ruderalis species. They usually come from Canada and Russia and produce very low levels of THC.

Characteristics of automatic marijuana seeds

In recent years, the automatic flowering trait has been transmitted to THC, photoperiod strains through several breeding steps, thus achieving automatic flowering plants with high psychoactivity. At the same time, the yields of the original Ruderalis varieties have been increased notably, since they're normally very low.

Autoflowering seeds do not depend on photoperiod - which is to say, do not respond to the day / night light cycle - but will start flowering three or four weeks after seed germination.

Growing autoflowering seeds

Autoflowering seeds can be grown at any time of the year. However, in order to optimize their performance, we recommend planting them from March to late August. Notice that it can take from 60 to 70 days from seed germination to harvest, so it would be possible to make 3 to 4 crops per year, mainly depending on the latitude and evironmental conditions of our growing spot.

Indoors, we recommend a photoperiod of 20h of light and 4 hours of complete darkness a day for the entire cycle. Since autoflowering seeds can be harvested after 60 or 70 days from germination, a 10L pot is enough for the entire cycle. There's no need to grow in larger containers since we will get virtually the same harvest, and we should always plant our Auto seeds into the definitive container (they hate transplants).

Autoflowering strains can not be cloned because they automatically start blooming even before developing a nice rootball or receiving a minimum growth period.

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There are 439 products tagged as Automatic cannabis seeds

Gorilla Auto

Gorilla Auto - Dinafem Seeds

Dinafem presents here at Gorilla Auto, the auto-flowering version of the well-known Gorilla Glue cannabis genetics, a variety that retains GG characteristics while increasing its resistance to cold and moisture. It is a cross between [...]

  • 1 seed 11.00€
  • 3 seeds 25.00€
  • 5 seeds 36.00€40.00€
  • 10 seeds 80.00€
Cookies Auto - Dinafem

Cookies Auto - Dinafem - Dinafem Seeds is happy to present Cookies Auto, the auto-flowering Dinafem Girl Scout Cookies version. It is a cross between Girl Scout Cookies and OG Kush Auto, unifying the GSC aroma and power with the OG speed and robustness. Dinafem Cookies A [...]

  • 1 seed 11.00€
  • 3 seeds 25.00€
  • 5 seeds 40.00€
  • 10 seeds 80.00€
Gorilla Glue Auto - BlimBurn Seeds

Gorilla Glue Auto - BlimBurn Seeds - Blim Burn Seeds

We are happy to present Gorilla Glue Auto by Blim Burn Seeds, the auto-flowering version of the popular Gorilla Glue #4. This variety is now available in our feminised seeds catalogue at It is a cross between Gorilla Glue #4 and Rude [...]

  • 3 seeds 19.90€
Mota CBD Rich Auto

Mota CBD Rich Auto - LaMota Seeds

Now available in our catalogue at Mota CBD Rich, an automatic variety with a CBD content of 15% and a THC level of less than 1%, ideal for therapeutic and leisure use. Mota CBD Rich Auto, CBD level of 15% and THC contain of less than [...]

  • 1 seed 5.00€
  • 3 seeds 12.00€
  • 5 seeds 20.00€
  • 25 seeds 89.00€
  • 100 seeds 295.00€
Purplediol Auto CBD

Purplediol Auto CBD - Elite Seeds

Alchimia Grow Shop presents Purplediol Auto CBD by Elite Seeds, a variety with a THC:CBD 34:1 ratio and purple colours, now available in our feminised auto-flowering cannabis seeds catalogue. Purplediol Auto CBD, 17% CBD and 0.5% THC This strain is [...]

  • 3 seeds 23.00€
Dark Rose Auto CBD

Dark Rose Auto CBD - Elite Seeds

We are glad to present Dark Rose Auto CBD by Elite Seeds, the Purplediol Auto CBD version with a THC:CBD 1:1 ratio. This variety is now available in our feminised cannabis seeds catalogue at Dark Rose Auto CBD, THC:CBD 1:1 ratio [...]

  • 3 seeds 24.00€
Glue Gelato Auto

Glue Gelato Auto - Barneys Farm

We are happy to offer Barney's Farm Glue Gelato Auto, a hybrid with the best Made in USA genetics on the market. Now available online in our catalogue of autoflowering genetics here at Alchimiaweb. This hybrid is a cros [...]

  • 3 seeds 25.00€
  • 5 seeds 39.00€
  • 10 seeds 67.50€75.00€
Purple Punch Auto

Purple Punch Auto - Barneys Farm

Alchimia Grow Shop presents here Purple Punch Auto by Barney's Farm, the Purple Punch auto-flowering version. It is a purple Indica plant with an enormous power. Purple Punch Auto, Purple Punch x BF Auto Critical It is a cross between Purple Punch [...]

  • 3 seeds 25.00€ Product sold out
  • 5 seeds 40.00€ Product sold out
  • 10 seeds 80.00€
Zkittlez OG Auto

Zkittlez OG Auto - Barneys Farm

Barney's Farm is happy to present Zkittlez OG Auto, an AutoFem variety characterised by a fruity and sweet aromas and a relaxing and positive effect. Now available online in our autoflowering seed collection here at Alchimiaweb. This variety wa [...]

  • 3 seeds 25.00€
  • 5 seeds 39.00€
  • 10 seeds 67.50€75.00€
LSD Auto

LSD Auto - Barneys Farm

Barneys Farm proudly presents LSD Auto, an automatic version of the mytical feminised LSD Variety, now available online at Alchimia Grow Shop This strain was created crossing an elite selection of LSD with Sup [...]

  • 3 seeds 22.50€25.00€
  • 5 seeds 39.00€
  • 10 seeds 67.50€75.00€
Do-Si-Dos Cake Auto

Do-Si-Dos Cake Auto - LaMota Seeds

Alchimia presents here Do-Si-Dos Cake auto-flowering version by LaMota Seeds, a hybrid with sweet, floral and fruity aroma on a Kush background that leaves no one indifferent. Do-Si-Dos Cake Auto is a 60/40 Indica Sativa hybrid that produces robust [...]

  • 1 seed 5.00€
  • 3 seeds 12.00€
  • 5 seeds 20.00€
  • 25 seeds 89.00€
  • 100 seeds 295.00€
Sweet Gelato Auto

Sweet Gelato Auto - Sweet Seeds

Sweet Gelato Auto by Sweet Seeds is a fifth-generation feminised auto-flowering cannabis plant, now available in our feminised seeds catalogue at alchimiaweb. This auto-flowering variety is one of the most famous s [...]

  • 3 seeds + 1 free seed 22.50€
  • 5 seeds + 2 free seed 36.90€
Auto Pineapple Glue

Auto Pineapple Glue - Advanced Seeds

Auto Pineapple Glue by Advanced Seeds is an auto-flowering plant created from a cross between Auto Pineapple characterised by tropical mango and papaya flavours and Auto Gorilla Glue which contributes with its incredible trichomes production, diesel [...]

  • 1 seed 7.50€
  • 3 Seeds 15.00€
  • 10 Seeds 44.10€49.00€
 Sweet Cheese XL AUTO

Sweet Cheese XL AUTO - Sweet Seeds

Here at Alchimia Grow Shop we are happy to present Sweet Cheese XL Auto by Sweet Seeds, a 3rd generation feminised auto-flowering variety. With this hybrid, Sweet Seeds has created a large automatic cannabis plant, a cross developed in a breeding pr [...]

  • 3 seeds + 1 free seed 19.90€
  • 5 seeds + 2 free seed 33.00€
  • 25 Seeds 100.00€
Auto Double Cookies

Auto Double Cookies - BSF Seeds

Double Cookies Auto by BSF Seeds is an auto-flowering variety resulting from a cross between Do-Si-Dos, used as a male, and a fourth-generation Cookies auto. This variety has the opportunity to move up rank from the Draft category to the Starts Playe [...]

  • 2+2 seeds 25.80€
  • 4+4 Seeds 45.50€
  • 7+7 Seeds 68.90€ Product sold out
  • 12+12 Seeds 97.50€