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Most cannabis plants begin their flowering cycle when the photoperiod, or length of time they are exposed to light each day, is reduced to somewhere between 12 and 14 hours, regardless of the size or age of the plant. The species Cannabis ruderalis, however, will begin flowering once the plant reaches a certain age and does not depend on a change in photoperiod.

Some breeders have crossed the low-THC ruderalis with other more potent varieties to create auto-flowering strains. These strains will produce indica, sativa, or hybrid-like cannabis flowers that start blooming as soon as they reach maturity. This is desirable especially in northern climates where summers are short and cold, and wet weather comes early in the fall. Auto-flowering strains can be started in early spring and will flower during the longest days of summer to take advantage of the highest quality light available. Unlike clone mothers, auto-flowering strains cannot be kept in a vegetative state.

To learn more: click here

Auto Flowering-Feminized
    • 420 Fast Buds 420 Fast Buds Blackberry Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Blackberry Auto-Fem 5 pk

      VARIETY Mostly Indica
      FLOWERING TYPE Autoflowering
      SEX Feminised
      THC CONTENT Very High
      CBD CONTENT 0.8%
      YIELD Indoors: 500-600 gr/m2 & Outdoors: 70-300 gr/plant
      PLANT HEIGHT 70-110 cm
      GROWS Indoors, Outdoors
      FLOWERING TIME 8 weeks

      $50.00 Sold out
    • 420 Fast Buds 420 Fast Buds Blue Dream'Matic Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Blue Dream'Matic Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Mostly Sativa
      Genetics: Blue Dream autoflowering
      Flowering: 9-11 weeks
      Harvest: XXL
      Height US: up to 45 inches
      Height EU: up to 110 cm
      THC: Very High
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds C4 Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds C4 Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Sativa/Indica
      Genetics: C4 autoflowering
      Flowering: 8 weeks
      Harvest: XL
      Height US: up to 40 inches
      Height EU: 70 - 100 cm
      THC: High
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds Californian Snow Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Californian Snow Auto-Fem 5 pk

      GENETICS American Old School Hot California strain x Canadian Ruderalis
      VARIETY Indica / Sativa
      FLOWERING TYPE Autoflowering
      SEX Feminised
      THC CONTENT 19%
      CBD CONTENT 1%
      YIELD Indoors: 400-550g/m2 & Outdoors: 50-250 g/plant
      PLANT HEIGHT 80-130 cm

      $50.00
    • 420 Fast Buds 420 Fast Buds CBD Crack Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds CBD Crack Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Sativa/Indica
      Genetics: Green Crack x CBD autoflowering
      Flowering: 9-10 weeks (flushing at 60 days)
      Harvest: L
      Height US: up to 35 inches
      Height EU: up to 100 cm
      THC: Very Low
      CBD: Very High

      $50.00
    • 420 Fast Buds 420 Fast Buds Cream Cookies Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Cream Cookies Auto-Fem 5 pk

      Genetics: Girl Scout Cookies auto hybrid
      Indica dominant
      Yield: High
      Harvest: 8 to 11 weeks after germination
      Height: 60-90cm
      THC: Very high
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds Crystal Meth Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Crystal Meth Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Sativa/Indica
      Genetics: Crystal METH autoflowering
      Flowering: 8-9 weeks
      Harvest: XL
      Height US: up to 50 inches
      Height EU: 70 - 120 cm
      THC: Very High
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds Fastberry Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Fastberry Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Mostly Indica
      Genetics: Blueberry autoflowering
      Flowering: 9 weeks
      Harvest: L
      Height US: up to 30 inches
      Height EU: 70 - 120 cm
      THC: High
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds G-14 Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds G-14 Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Mostly Indica
      Genetics: G13 autoflowering
      Flowering: 8-9 weeks
      Harvest: XL
      Height US: up to 45 inches
      Height EU: 60-110 cm
      THC: High
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds Gelato Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Gelato Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Sativa 55% / Indica 45%
      Genetics: Gelato Auto
      Flowering: 8 weeks
      Harvest: XL
      Height US: up to 40 inches
      Height EU: 70-100cm
      THC: Very High - up to 26%
      CBD: Low
      Autoflowering: Yes

      $60.00
    • 420 Fast Buds 420 Fast Buds Girl Scout Cookies Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Girl Scout Cookies Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Sativa/Indica
      Genetics: Girl Scout Cookies autoflowering
      Flowering: 8-9 weeks
      Harvest: XL
      Height US: up to 40 inches
      Height EU: 60-100cm
      THC: Very High
      CBD: Low

      $60.00
    • 420 Fast Buds 420 Fast Buds Gorilla Glue Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Gorilla Glue Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Sativa/Indica
      Genetics: Gorilla Glue autoflowering
      Flowering: 8-9 weeks
      Harvest: XL
      Height US: up to 40 inches
      Height EU: 60-100cm
      THC: Very High
      CBD: Low

      $60.00 Sold out
    • 420 Fast Buds 420 Fast Buds Grape Fruit Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Grape Fruit Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Sativa/Indica
      Genetics: Grapefruit autoflowering
      Flowering: 8-9 weeks
      Harvest: XL
      Height US: up to 35 inches
      Height EU: 60-90 cm
      THC: High
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds Green Crack Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Green Crack Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Sativa/Indica
      Genetics: Green Crack autoflowering
      Flowering: 8 weeks
      Harvest: XL
      Height US: up to 35 inches
      Height EU: 60-90 cm
      THC: Very High
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds Lemon AK Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Lemon AK Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Mostly Sativa
      Genetics: AK-47 Autoflowering
      Flowering: 8-9 weeks
      Harvest: XL
      Height US: up to 40 inches
      Height EU: 70-100 cm
      THC: Very High
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds LSD-25 Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds LSD-25 Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Mostly Indica
      Genetics: LSD autoflowering
      Flowering: 8-9 weeks
      Harvest: XL
      Height US: up to 40 inches
      Height EU: 70 - 120 cm
      THC: High
      CBD: Low

      $50.00 Sold out
    • 420 Fast Buds 420 Fast Buds Mexican Airlines Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Mexican Airlines Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Mostly Indica
      Genetics: LSD autoflowering
      Flowering: 8-9 weeks
      Harvest: XL
      Height US: up to 40 inches
      Height EU: 70 - 120 cm
      THC: High
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds Pineapple Express Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Pineapple Express Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Sativa/Indica
      Genetics: Pineapple Express autoflowering
      Flowering: 9 weeks
      Harvest: XL
      Height US: up to 55 inches
      Height EU: 90 - 140cm
      THC: Very High
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds Rhino Ryder Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Rhino Ryder Auto-Fem 5 pk

      Gender: Feminized
      Genes: Sativa/Indica
      Genetics: Rhino Ryder autoflowering
      Flowering: 9 weeks
      Harvest: L
      Height US: up to 40 inches
      Height EU: 60-100 cm
      THC: Very High
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds Six Shooter Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Six Shooter Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Sativa/Indica
      Genetics: Mexican Airlines x Crystal METH autoflowering
      Flowering: 9 weeks
      Harvest: XXL
      Height US: up to 55 inches
      Height EU: 100 - 140 cm
      THC: Very High
      CBD: Low

      $50.00
    • 420 Fast Buds 420 Fast Buds Smoothie Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Smoothie Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Sativa/Indica
      Genetics: Somango x Blueberry
      Flowering: 9 weeks
      Harvest: XL
      Height US: up to 50 inches
      Height EU: 80-110 cm
      THC: Very High
      CBD: Low

      $60.00
    • 420 Fast Buds 420 Fast Buds Stardawg Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Stardawg Auto-Fem 5 pk

      GENETICS Chemdawg 4 x Tres Dawg
      VARIETY Indica / Sativa
      THC CONTENT 22%
      CBD CONTENT 1%
      YIELD Indoors: 400-600 g/m2 & Outdoors: 50-300 g/plant
      PLANT HEIGHT 70-120 cm
      GROWS Indoors, Outdoors
      FLOWERING TIME 8-9 weeks

      $50.00
    • 420 Fast Buds 420 Fast Buds Tangie'Matic Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds Tangie'Matic Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Mostly Sativa
      Genetics: Tangie autoflowering
      Flowering: 9 weeks
      Harvest: XXL
      Height US: up to 45 inches
      Height EU: 80 - 130cm

      $50.00
    • 420 Fast Buds 420 Fast Buds West Coast OG Auto-Fem 5 pk
    • 420 Fast Buds 420 Fast Buds West Coast OG Auto-Fem 5 pk

      Room: Indoor | Outdoor
      Gender: Feminized
      Genes: Mostly Indica
      Genetics: OG Kush (West Coast line) autoflowering
      Flowering: 8-9 weeks
      Harvest: XL
      Height US: up to 40 inches
      Height EU: 70-100 cm

      $50.00

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