The flower of the so-called automatic flowering cannabis varieties (or Automatics) depends on the age of the plant rather than the photoperiod. Automatic varieties get this properties usually from a certain amount of Ruderalis in the pedigree. In SeedFinders database of all automatic flowering cannabis strains you can find the right one for you, based on breeder- or user opinions! The strains are sorted alphabetically - but you also can filter the results and sort the table by clicking on the headers. For a more detailed search please use our <a class='link' href='https://seedfinder.eu/en/search/extended'>extended search</a> options!
| Strain name | Breeder | Flowering time | Strain heritage | Feminized |
|---|---|---|---|---|
| Auto Rainbow Bubble | Mudro Seeds | 70 | ruderalis / indica / sativa | feminized |
| Auto Ramses | Pyramid Seeds | 91 | ruderalis / indica / sativa | feminized |
| Auto Real Gorill4 | Real Gorilla Seeds | 75 | ruderalis / indica / sativa | feminized |
| Auto Red Russian XXL | Victory Seeds | 74 | ruderalis / indica / sativa | feminized |
| Auto Reek'n | The Devil's Harvest Seed Company | 67 | ruderalis / indica / sativa | feminized |
| Auto Relax | Dispensario Seeds | 70 | ruderalis / indica | regular |
| Auto Runtz | Mr. Hide Seeds | 74 | ruderalis / indica / sativa | feminized |
| Auto Russian | Dutch Quality Seeds | 63 | ruderalis / indica / sativa | feminized |
| Auto Russian | JustFeminized.com | 67 | ruderalis / indica / sativa | feminized |
| RS11 Auto | Advanced Seeds | 75 | ruderalis / indica / sativa | feminized |
| Radical Auto | Absolute Cannabis Seeds | 73 | ruderalis / indica / sativa | feminized |
| Radical Juice Auto | Ripper Seeds | 73 | ruderalis / indica | feminized |
| Ragnars Hammer | Copenhagen Seed Company | 70 | ruderalis / indica | feminized |
| Rainbow Candy Autoflowering | Growers Choice | 77 | ruderalis / indica | feminized |
| Rainbow Candy XL Auto | Ganja Farmer Seeds | 56 | ruderalis / indica | feminized |
| Rainbow Donut Auto | Anesia Seeds | 67 | ruderalis / sativa | feminized |
| Rainbow Kush Autoflower | United Cannabis Seeds | 84 | ruderalis / indica / sativa | feminized |
| Rainbow Mints Auto | 00 Seeds Bank | 80 | ruderalis / indica / sativa | feminized |
| Rainbow Sherbet Automatic | Zamnesia | 74 | ruderalis / indica / sativa | feminized |
| Randy Candy | Goonie Genetics | 65 | ruderalis / indica / sativa | regular |
| Rapid Afghan | AC Genetics | 63 | ruderalis / indica / sativa | feminized |
| Rapid Bud | The Moon Seeds | 70 | ruderalis / indica / sativa | feminized |
| Rasberry Froyo | STF Exotikz | 90 | ruderalis / indica / sativa | regular |
| Rasputin IBL | Crazy X Seeds | 56 | ruderalis / indica / sativa | regular |
| Razzberry Gastank Auto | Purple City Genetics | 67 | ruderalis / indica / sativa | feminized |
| Red-Eye Mind Triks | Happy Bird Seeds | 80 | ruderalis / indica / sativa | feminized |
| Red Dwarf | Buddha Seeds | 60 | ruderalis / indica / sativa | reg. and fem. |
| Red Genetic | Dr. Genetics | 60 | indica / sativa | feminized |
| Red Gorilla Cookies Auto | Ganja Farmer Seeds | 60 | ruderalis / indica | feminized |
| Red Gorilla Girl XL Auto | Sweet Seeds | 60 | ruderalis / indica / sativa | feminized |
| Red Jack Autoflowering | Growers Choice | 81 | ruderalis / indica / sativa | feminized |
| Red Kush Auto | BSF Seeds | 55 | ruderalis / indica | feminized |
| Red Libanon | Flash Seeds | - | ruderalis / indica | regular |
| Red Mandarine F1 Fast Version | Sweet Seeds | 53 | indica / sativa | feminized |
| Red Mimosa XL Auto | Sweet Seeds | 56 | ruderalis / indica / sativa | feminized |
| Red Opium | Happy Bird Seeds | 60 | ruderalis / indica / sativa | feminized |
| Red Poison Auto | Sweet Seeds | 56 | ruderalis / indica / sativa | feminized |
| Red Pure Auto CBD | Sweet Seeds | 63 | ruderalis / indica / sativa | feminized |
| Red Runtz Cake Auto | Purple Caper Seeds | 83 | ruderalis / indica / sativa | feminized |
| Red Skunk Auto | BSF Seeds | 55 | ruderalis / indica / sativa | feminized |
| Red Strawberry Banana Auto | Sweet Seeds | 56 | ruderalis / indica / sativa | feminized |
| Red Sugar Auto | BSF Seeds | 55 | ruderalis / indica / sativa | feminized |
| Redberry Express | Domus Seeds | 60 | ruderalis / indica / sativa | feminized |
| Redemption Kong | Happy Bird Seeds | 85 | ruderalis / indica / sativa | feminized |
| Revolver | Crop King Seeds | 49 | ruderalis / indica / sativa | feminized |
| Rhino Ryder | Fast Buds Company | 67 | ruderalis / indica / sativa | feminized |
| Ridgemont High | Happy Bird Seeds | 90 | ruderalis / sativa | feminized |
| Rip Lee's OG | Sterquiliniis Seed Supply | 63 | ruderalis / indica / sativa | feminized |
| Ripley's OG | Mephisto Genetics | 70 | ruderalis / indica / sativa | feminized |
| Ripley, CA | Sterquiliniis Seed Supply | 63 | ruderalis / indica / sativa | feminized |
| Ripple Mountain Pie | Happy Bird Seeds | 76 | indica / sativa | feminized |
| Roadkill | Gas Reaper Genetics | - | ruderalis / indica / sativa | feminized |
| Roadrunner #2 | Dinafem | 70 | ruderalis / indica / sativa | feminized |
| Roadrunner Automatic | Dinafem | 65 | ruderalis / indica / sativa | feminized |
| Roadster V8 | Fast & Furious Seeds | 63 | ruderalis / indica / sativa | feminized |
| Robocrop | Cream of the Crop Seeds | 75 | ruderalis / indica / sativa | feminized |
| Robot Monster | Sterquiliniis Seed Supply | 63 | ruderalis / indica / sativa | feminized |
| RocDawg Funk Auto | RocBudInc | - | ruderalis / indica / sativa | feminized |
| Rock Machine | Doctor's Choice | 73 | ruderalis / indica | feminized |
| Rocket Fuel Autoflowering | Supernaturalseeds.uk | 81 | ruderalis / indica / sativa | feminized |
| Rolling Thunder | Ronin Garden | 75 | ruderalis / indica / sativa | feminized |
| RoloGlue | Rheinland Genetics | 60 | ruderalis / indica | feminized |
| Ronald Raygun | Dead By Dawn Genetics | 70 | ruderalis / indica / sativa | regular |
| Ronald Runtz | Dead By Dawn Genetics | 65 | indica / sativa | regular |
| Rope a Dope | Ronin Garden | 75 | ruderalis / indica / sativa | feminized |
| Roswell Cookies | Night Owl Seeds | 85 | ruderalis / indica / sativa | feminized |
| Royal AK Automatic | Royal Queen Seeds | 67 | ruderalis / indica / sativa | feminized |
| Royal Automatic | Royal Queen Seeds | 60 | ruderalis / indica / sativa | feminized |
| Royal Bluematic | Royal Queen Seeds | 60 | ruderalis / indica / sativa | feminized |
| Royal CBG Automatic | Royal Queen Seeds | 67 | ruderalis / sativa | feminized |
| Royal Canadian Haze Auto | Canadian Seed Lab | 70 | ruderalis / indica / sativa | regular |
| Royal Cheese Automatic | Royal Queen Seeds | 67 | ruderalis / indica / sativa | feminized |
| Royal Cookies Automatic | Royal Queen Seeds | 63 | ruderalis / indica / sativa | feminized |
| Royal Creamatic | Royal Queen Seeds | 56 | ruderalis / indica | feminized |
| Royal Critical Automatic | Royal Queen Seeds | 63 | ruderalis / indica / sativa | feminized |
| Royal Dwarf | Royal Queen Seeds | 60 | ruderalis / indica / sativa | feminized |
| Royal Gorilla Automatic | Royal Queen Seeds | 63 | ruderalis / indica / sativa | feminized |
| Royal Haze Automatic | Royal Queen Seeds | 77 | ruderalis / indica / sativa | feminized |
| Royal Kush Automatic | Royal Queen Seeds | 60 | ruderalis / indica / sativa | feminized |
| RoyalMazar | Real Gorilla Seeds | 85 | ruderalis / indica / sativa | feminized |
| Royal Purple Kush Auto | Emerald Triangle | 55 | ruderalis / indica / sativa | feminized |
| Royal Runtz Automatic | Royal Queen Seeds | 74 | ruderalis / indica / sativa | feminized |
| Royal Stomper | Night Owl Seeds | 70 | ruderalis / indica / sativa | feminized |
| Royal Stomper Remix | Night Owl Seeds | 70 | ruderalis / indica / sativa | feminized |
| Royalmatic | Ministry of Cannabis | 63 | ruderalis / indica / sativa | feminized |
| Rucu Cucu OG Auto | SeedStockers | 74 | ruderalis / indica / sativa | feminized |
| Rude Bud | Zambeza | 56 | ruderalis / indica / sativa | feminized |
| Ruderalis Indica | Sensi Seeds | 77 | ruderalis / indica | regular |
| Rudi | KalySeeds | - | ruderalis / indica | regular |
| Rulk Auto | Urban Legends | 84 | ruderalis / indica / sativa | feminized |
| RuntZorbet | Gas Reaper Genetics | 63 | ruderalis / indica / sativa | feminized |
| Runtz Auto | Barneys Farm | 67 | ruderalis / indica / sativa | feminized |
| Runtz Auto | Bluedog Genetics | 55 | ruderalis / indica / sativa | feminized |
| Runtz Auto | Greenfield Seeds | 70 | ruderalis / indica | feminized |
| Runtz Auto | Original Sensible Seeds | 67 | ruderalis / indica / sativa | feminized |
| Runtz Auto | Zamnesia | 67 | ruderalis / indica / sativa | feminized |
| Runtz Autoflower | United Cannabis Seeds | 84 | ruderalis / indica / sativa | feminized |
| Runtz F1 Automatic | Zamnesia | 74 | ruderalis / indica / sativa | feminized |
| Runtz Fast Flowering | Humboldt Seed Organisation | 67 | ruderalis / indica | feminized |
| Runtz Smitten | Happy Bird Seeds | 88 | ruderalis / sativa | feminized |
| Runtz XL Auto | Sweet Seeds | 56 | ruderalis / indica / sativa | feminized |
| Runtz x Black Cream Auto | Philosopher Seeds | 70 | ruderalis / indica / sativa | feminized |
| Runtz x Thor’s Hammer F4 | Viking Gardens | 105 | ruderalis / indica / sativa | regular |
| Russian Auto CBD | Nativ Canna | - | ruderalis / indica / sativa | regular |
| Russian Automatic | Exotic Seed | 77 | ruderalis / indica / sativa | feminized |
| Russian Fuel | Flash Seeds | 67 | ruderalis / indica / sativa | reg. and fem. |
| Russian Fuel F2 | Bay Seeds | 67 | ruderalis | regular |
| Russian Haze | Flash Seeds | 80 | ruderalis / indica / sativa | feminized |
| Russian Landrace Auto | Seattle Chronic Seeds | - | ruderalis / indica / sativa | feminized |
| Russian Rocket Fuel | Short Stuff Seedbank | 63 | ruderalis / indica / sativa | reg. and fem. |