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                                                                                      12/12 Photoperiod Cannabis Seeds


                                                                                      If you’re new to cannabis seed collecting, you’ll need to start with learning the difference between 12/12 photoperiod cannabis seeds and autoflowering cannabis seeds. Whereas auto seeds have been bred in a way that means they will automatically begin to flower after a certain amount of time, photoperiod seeds rely on a change in light cycles in order to ‘know’ when to flower. Photoperiod marijuana seeds tend to rely on a 12/12 cycle of lighting, with 12 hours on and 12 hours off – hence the name! The benefits to collecting 12/12 photoperiod marijuana seeds include being able to add feminised or regular seeds that are known for being cloneable, high-yielding, and generally of a higher value to your collection.

                                                                                      Here at Seed City you’ll find a huge choice of photoperiod cannabis seeds to choose from, including famous favourites such as AK 47, THC Bomb, Euforia, LSD, Purple Haze, and more! With our price match guarantee you’ll get your photoperiod weed seeds at the lowest prices anywhere online!

                                                                                      12/12 Photoperiod Seeds

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                                                                                      SALE - Pink Sherb - Karma Genetics - Karma Genetics

                                                                                      0 Stars
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                                                                                      Pink Sherb by Karma Genetics is the result of crossing the special elite cut of the Sherb IX with the exotic female they've used for a number of special new hyb...

                                                                                      $85.46
                                                                                      $94.96
                                                                                      You Save:  10.00%

                                                                                      Auto Stardawg - Short Stuff Seeds

                                                                                      0 Stars
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                                                                                      Highly potent strain with cerebral and relaxing effects. Harvest in 9-10 weeks, yields up to 250g/plant.

                                                                                      $30.86
                                                                                      $34.29
                                                                                      You Save:  10.00%

                                                                                      Lemon Haze - Royal Queen Seeds

                                                                                      5 Stars
                                                                                      1

                                                                                      Sativa-dominant strain with zesty lemon aroma and flavor. High THC, moderate CBD. Award-winning. Uplifting effects, energizing, creative. High yields.

                                                                                      $21.88
                                                                                      $24.31
                                                                                      You Save:  10.00%

                                                                                      Jean Guy - House of the Great Gardener

                                                                                      0 Stars
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                                                                                      Quebec-born legend with pungent citrus/skunk smell, strong buzz. Sativa dominant with THC 25%, CBD 1.4%, CBN 0.08%. Grows quickly with heavy colas.

                                                                                      $63.18

                                                                                      Highway Harmony - Karma Genetics

                                                                                      0 Stars
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                                                                                      Resilient hybrid strain with high yields and exceptional quality. Ideal for all cultivators.

                                                                                      $75.84

                                                                                      G13 Haze - Barneys Farm Seeds

                                                                                      0 Stars
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                                                                                      G13 x Hawaiian Sativa: dense, resinous flowers with fruity, spicy flavors. Ideal for SOG and ScrOG gardens.

                                                                                      $8.03

                                                                                      Future #1 - Anesia Seeds

                                                                                      5 Stars
                                                                                      6

                                                                                      Highly potent strain with 37% THC, stimulating high, fruity flavors, strong resin production. Suitable for relaxation, creativity, and medical use.

                                                                                      $42.54

                                                                                      Rocky Melon - Karma Genetics

                                                                                      0 Stars
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                                                                                      Hybrid strain with potent smell and taste, outstanding mold resistance, vibrant colors, complex flavor profile.

                                                                                      $88.50

                                                                                      Super Lemon Haze - Green House Seeds

                                                                                      5 Stars
                                                                                      2

                                                                                      70% Sativa - 30% Indica. THC: 19.33% CBD: 0.21% CBN: 1.15%. Citrus-like haze with balanced effects. Effective for pain and appetite. High yielding.

                                                                                      $33.93

                                                                                      THC Bomb - Bomb Seeds

                                                                                      4 Stars
                                                                                      6

                                                                                      Potent strain with high yields, short flowering time, and strong effects. Ideal for commercial growers and connoisseurs seeking high THC levels.

                                                                                      $3.18

                                                                                      Mimosa EVO - Barneys Farm Seeds

                                                                                      5 Stars
                                                                                      1

                                                                                      Sativa dominant strain with tropical lemon and citrus flavors. High-quality seeds with discreet shipping and educational resources.

                                                                                      $34.44

                                                                                      LSD - Barneys Farm Seeds

                                                                                      5 Stars
                                                                                      4

                                                                                      Hardy, disease resistant plant with powerful high. Easy to grow, high yield buds. Euphoric, psychedelic effect. Earthy chestnut flavor.

                                                                                      $34.44

                                                                                      Hindu Runtz - Karma Genetics

                                                                                      0 Stars
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                                                                                      Potent, unique hybrid with tight flowers and distinct smell. Medium yield, finishes in 8-9 weeks. Created by Karma Genetics.

                                                                                      $94.96

                                                                                      Black Beard - Karma Genetics

                                                                                      0 Stars
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                                                                                      Powerful hybrid with narcotic effects, sturdy stems, tight buds. Nighttime strain with high sedation levels. Flowering in 9-10 weeks, medium-high yields.

                                                                                      $94.96

                                                                                      Sweatband OG - Karma Genetics

                                                                                      0 Stars
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                                                                                      OG Kush hybrid with elite offspring, heavy smoke, knockout effects, true OG flavor.

                                                                                      $94.96

                                                                                      Gelato - Blackskull Seeds

                                                                                      5 Stars
                                                                                      1

                                                                                      Indica dominant with sweet, fruity flavor. Uplifting, euphoric effects. Balanced for pain, fatigue, headaches. High THC.

                                                                                      $17.98

                                                                                      Sour Diesel - DNA Genetics Seeds

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                                                                                      High-yielding strain with stretchy growth, light green, frosty, sour flowers. Recommended 10-week flowering period, suitable for all growers.

                                                                                      $82.30

                                                                                      Kushi Melon - Karma Genetics

                                                                                      0 Stars
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                                                                                      Karma Genetics releases Kushi Melon seeds, known for dense buds and easy growth with a lemon pinesol terp profile.

                                                                                      $88.63

                                                                                      GH Cheese - Green House Seeds

                                                                                      0 Stars
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                                                                                      Sativa-dominant strain with 18.5% THC. Long-lasting effects for pain, appetite, and insomnia. Indoor flowering in 8 weeks, outdoor ready in September.

                                                                                      $10.84

                                                                                      Choco Bud - Vision Seeds

                                                                                      0 Stars
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                                                                                      High THC and CBD levels, energetic and uplifting effects. Suitable for anxiety, migraines, ADD/ADHD, and PMS. Harvest in 80 days.

                                                                                      $5.96

                                                                                      Frisian Duck - Dutch Passion Seeds

                                                                                      4 Stars
                                                                                      4

                                                                                      Distinctive leaf shape, ideal for outdoor growing in populated areas. Ready to harvest in October, grows up to 2.5 meters outdoors. Spicy aroma, Sativa high.

                                                                                      $9.67

                                                                                      GeloTini - Karma Genetics

                                                                                      0 Stars
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                                                                                      New strain from Karma Genetics, LemonTini collection. Fast-flowering, potent lemon gelato flavors. Good branching, 8-9 weeks flowering.

                                                                                      $88.50

                                                                                      Skywalker Kush - DNA Genetics Seeds

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                                                                                      High yielding strain with OG Kush taste, increased yield, great for concentrates. Flowering in 9 weeks, multiple crops a year.

                                                                                      $82.30

                                                                                      Sour Diesel - Royal Queen Seeds

                                                                                      5 Stars
                                                                                      1

                                                                                      Premium genetics from reputable breeder. Pungent, potent strain with global popularity and awards. Strongly Sativa effects, complex flavors.

                                                                                      $26.08

                                                                                      SALE - Sherb Biker - Karma Genetics - Cannabis Seed Sale Items

                                                                                      0 Stars
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                                                                                      Potent purple-green strain with fruity, berry, and pungent terpenes. Great for extraction artists.

                                                                                      $35.40
                                                                                      $70.80
                                                                                      You Save:  50.00%

                                                                                      WIFI - Flavour Chasers

                                                                                      0 Stars
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                                                                                      Strong OG strain with long-lasting effects. Combines resin production, sour taste, and power. Good for daytime use and medicinal purposes.

                                                                                      $105.59

                                                                                      Freakshow - Humboldt Seed Company

                                                                                      5 Stars
                                                                                      1

                                                                                      Novel creation by Humboldt Seed Co, Freakshow has unique morphology. Breeder "Shapeshifter" spent years selecting for oddities. Flowering time is 65 days.

                                                                                      $67.10

                                                                                      Pink Payton - Karma Genetics

                                                                                      0 Stars
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                                                                                      New strain with hard buds, resin coverage. Powerful high, sweet flavor, deep lung expansion.

                                                                                      $94.96

                                                                                      White Widow - Nirvana Seeds

                                                                                      0 Stars
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                                                                                      High THC resin production. Sativa-dominant hybrid with energizing, social buzz. Indoor cultivation, medium height, 8-10 week flowering period.

                                                                                      $18.74

                                                                                      IMPERIUM X - Anesia Seeds

                                                                                      4 Stars
                                                                                      3

                                                                                      Potent strain with THC levels up to 36%. Provides intense euphoric effects, high yields, and sweet, fruity aroma.

                                                                                      $42.54
                                                                                      Last Updated Was Exactly: Wednesday, 26 February 2025 01:54
                                                                                      Cannabis Seed Cart



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