There are a few automatic versions of Sour Diesel available on the market. This one from Humboldt Seed Organization is derived from their own well renowned Sour Diesel lines and comes with a good reputation. Humboldt Sour Diesel Auto is a very lively and vigorous plant. She has multiple branches that all produce buds which snake along their lengths. She will grow fairly tall for an auto. Some gentle LST may be necessary, but otherwise just let this lady stretch her limbs. Feed as necessary and keep her under lights on 20/4 and she will reward you with yields that easily compare with some photoperiod strains. Sour Diesel Auto takes around 11 weeks from the onset of flowering, which takes place at around week 2/3 of veg. She carries the heavy dank smell of her mother so take care if you prefer to grow discreetly. When smoked there is little, if any, difference between Sour Diesel Auto and photoperiod Sour Diesels. The high is soaring and quite intense. The flavor hits all the right buttons too with that tongue tingling kerosene tang that makes these strains so popular. StrainSativa/Indica/RuderalisSeed OriginSour Diesel X Unknown RuderalisSeed BreederHumboldt Seed OrganizationAuto Flower Seeds AvailableYesFeminized Seeds AvailableYesGrow IndoorsYesGrow OutdoorYesYieldHighHeight IndoorsmediumHeight OutdoorstallFlowering Period75 days from seedlingHarvest Outdoorn/aTHC LevelHighStoned or HighhighGrow DifficultyeasyAwardsNone