Diesel Berry - Auto Seeds By Auto SeedsFrom: US$26.67- THC: 15%-18%
- Yield: 300-400gr/m²
- Flowering Time: 6-8 Weeks
Trans Siberian - Auto Seeds By Auto SeedsFrom: US$29.21- THC: 15%-18%
- Yield: 300-400gr/m²
- Flowering Time: 6-8 Weeks
Sucker Punch - Auto Seeds By Auto SeedsFrom: US$29.21- THC: 19%-22%
- Yield: 300-400gr/m²
- Flowering Time: 6-8 Weeks
Purple Stilton - Auto Seeds By Auto SeedsFrom: US$49.53- THC: 15%-18%
- Yield: 300-400gr/m²
- Flowering Time: 6-8 Weeks
Auto Chemdog - Auto Seeds By Auto SeedsFrom: US$29.21- THC: 15%-18%
- Yield: 300-400gr/m²
- Flowering Time: 6-8 Weeks
Auto Pounder - Auto Seeds By Auto SeedsFrom: US$31.75- THC: 15%-18%
- Yield: 500-600gr/m²
- Flowering Time: 6-8 Weeks
Ultra Lemon Haze - Auto Seeds By Auto SeedsFrom: US$29.21- THC: 15%-18%
- Yield: 300-400gr/m²
- Flowering Time:
Wedding Cake Auto Feminized 5 Seeds By 420 SeedbankFrom: Now US$33.88 Was US$58.42- THC: 18%-20%
- Yield: 500-600gr/m²
- Flowering Time: 6-8 Weeks
Sale42% OFF
Runtz Auto Feminized 5 Seeds By 420 SeedbankFrom: Now US$33.88 Was US$58.42- THC: 24%-26%
- Yield: 500-600gr/m²
- Flowering Time: 6-8 Weeks
Sale42% OFF
Do Si Dos Auto Feminized 5 Seeds By 420 SeedbankFrom: Now US$33.88 Was US$58.42- THC: Over 25%
- Yield: 500-600gr/m²
- Flowering Time: 6-8 Weeks
Sale42% OFF
Bruce Banner Auto Feminized 5 Seeds By 420 SeedbankFrom: Now US$33.88 Was US$58.42- THC: Over 25%
- Yield: 500-600gr/m²
- Flowering Time: 8-10 Weeks
Sale42% OFF
Amnesia Flash Autoflower - Anesia Seeds By Anesia SeedsFrom: US$32.39- THC: 18%-20%
- Yield: 200-300gr/m²
- Flowering Time: 8-10 Weeks
Gelato #33 Autoflower - Advanced Seeds By Advanced SeedsFrom: US$19.81- THC: Over 22%
- Yield: 450-550gr/m²
- Flowering Time: 8-10 Weeks
Cherry Pie Autoflower - Advanced Seeds By Advanced SeedsFrom: US$21.59- THC: Over 22%
- Yield: 500-600gr/m²
- Flowering Time: 6-8 Weeks
Biodiesel Mass XXL Autoflower - Advanced Seeds By Advanced SeedsFrom: US$21.59- THC: 15%-18%
- Yield: 400-500gr/m²
- Flowering Time:
Bruce Banner Autoflower - Original Sensible Seeds By Original Sensible SeedsFrom: US$24.77- THC: 18%-20%
- Yield: 450-550gr/m²
- Flowering Time: 8-10 Weeks
Wedding Cake Autoflower - Original Sensible Seeds By Original Sensible SeedsFrom: US$24.77- THC: 18%-20%
- Yield: 500-600gr/m²
- Flowering Time: 8-10 Weeks
Purple Haze Autoflower - Original Sensible Seeds By Original Sensible SeedsFrom: US$18.42- THC: 15%-18%
- Yield: 300-400gr/m²
- Flowering Time: 8-10 Weeks
Critical Autoflower - Kera Seeds By Kera SeedsFrom: US$21.59- THC: 15%-18%
- Yield: 450-550gr/m²
- Flowering Time: 6-8 Weeks
Gorilla Glue Autoflower - Kera Seeds By Kera SeedsFrom: US$29.21- THC: 24%-26%
- Yield: 450-550gr/m²
- Flowering Time: 8-10 Weeks
Zkittles Autoflower - Kera Seeds By Kera SeedsFrom: US$39.37- THC: 24%-26%
- Yield: 450-550gr/m²
- Flowering Time: 8-10 Weeks
Vanilla Latte Autoflower - Humboldt Seed Company By Humboldt Seed CompanyFrom: US$37.47- THC: Over 25%
- Yield:
- Flowering Time: 10-12 Weeks
Sour Apple Autoflower - Humboldt Seed Company By Humboldt Seed CompanyFrom: US$37.47- THC: Over 22%
- Yield:
- Flowering Time: 10-12 Weeks
Chunkadelic Autoflower - Humboldt Seed Company By Humboldt Seed CompanyFrom: US$37.47- THC: 19%-22%
- Yield:
- Flowering Time: 8-10 Weeks
Autoflower Seeds
Want to grow weed fast? Autoflowers contain the Cannabis Ruderalis genetics which cause them flower based on age rather than light cycle. Our selection of autoflowering seeds can grow from seed to harvest in as little as 8 weeks and reach average heights of 100cm, making them perfect for indoor grows.
Read MoreWhat are autoflower seeds?
Autoflowering seeds are a type of cannabis seed that automatically switch from the vegetative stage to the flowering stage with age, rather than by light schedule adjustments. Autoflowers genetics can be traced back to Cannabis ruderalis, a species of plant that originally grew in Siberia, Russia and Eastern Europe. The Ruderalis species is known for its hardiness and ability to flower automatically.
Noticing the potential from a strain that flowers based on age, cannabis breeders in the late 90’s combined these traits with the more potent cannabis sativa and indica strains. The result is autoflowering cannabis strains that are easy to grow, have a shorter life cycle, and require less maintenance, making them ideal for both beginners and experienced growers looking for a quick, hassle-free cultivation process.
Advantages of growing autoflower seeds:
Indoor Growing: Autoflower seeds are great for small indoor grows, their compact size, makes them perfect if you are a bit tight on space.
Fast Flowering: Autos grow incredibly fast, often flowering within 2-4 weeks from germination and growing seed to harvest in 10 weeks. This quick turnaround allows for multiple harvests in a single season.
Hardy Ruderalis Genetics: Originating from the robust Cannabis ruderalis, autoflowers inherit resilience to harsh climates and common plant diseases, reducing the need for pest and disease and temperature control.
Same Light Cycle: Autoflowers don't require changes in the light cycle to flower. They can be grown under the same light schedule throughout their life, simplifying the growing process.
How much do autoflower strains yield?
Autoflower strains typically yield between 30-100 grams per plant. However, with high-yield genetics and optimal growing conditions, some plants can produce as much as 200 grams.
How potent are autoflowers?
Autoflowers have significantly increased in potency over the years. Traditionally, they had THC levels around 10-15%, but recent advancements in selective breeding have led to autoflowering strains that can reach up to 26% THC.
How long do autoflowers take to grow from seed?
Autoflowers typically take about 8 to 10 weeks to grow from seed to harvest. This short veg and flowering stages is one of their main advantages, shaving months off your schedule and allowing for quick turnover and multiple growing cycles within a single season.
What is the best light cycle for autoflower strains?
Most growers choose a lighting schedule of either 18 hours of light and 6 hours of darkness (18/6) or 20 hours of light and 4 hours of darkness (20/4). These cycles offer a balance of optimum light absorption and enough nightly recovery time. However, autoflowers are adaptable and can grow under almost any light cycle. Some growers even opt for 24 hours of continuous light to maximize growth, although this can stress plants.
Are all autoflower seeds feminized?
All of our autoflowers at 420 Seeds are feminized, ensuring they grow into bud-producing female plants. While it is possible to find regular autoflower seeds, they are less common and not as popular due to the higher likelihood of male plants that don't produce buds.
What is the best way to store autoflower seeds at home?
Autoflower seeds should be stored in an airtight container, placed in a cool, dark, and dry area away from temperature fluctuations. This environment keeps them fresh for longer ensuring their viability. If you plan to store them for longer than six months, it's best to keep them in a refrigerator at 6°C - 8°C.
Best Sellers
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Zkittlez Gum Bomb Feminized - Bomb SeedsFrom: US$40.64- THC: Over 22%
- Yield: 500-600gr/m²
- Flowering Time: 10-12 Weeks
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THC Fritters Autoflower - Bomb SeedsFrom: US$40.64- THC: Over 25%
- Yield: 300-400gr/m²
- Flowering Time: 8-10 Weeks
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THC Fritters Feminized - Bomb SeedsFrom: US$40.64- THC: Over 25%
- Yield: 400-500gr/m²
- Flowering Time: 8-10 Weeks
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Ghost Train Bomb Feminized - Bomb SeedsFrom: US$46.99- THC: Over 25%
- Yield: 500-600gr/m²
- Flowering Time: 8-10 Weeks
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Mango Cookies Autoflower - Auto SeedsFrom: US$29.85- THC: 19%-22%
- Yield: 300-400gr/m²
- Flowering Time: 6-8 Weeks
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Do Si Dos Autoflower - Auto SeedsFrom: US$29.85- THC: Over 25%
- Yield: 500-600gr/m²
- Flowering Time: 8-10 Weeks
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Godfather OG Autoflower - Auto SeedsFrom: US$35.56- THC: Over 25%
- Yield: 400-500gr/m²
- Flowering Time: 10-12 Weeks
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Moonrocks Autoflower - Auto SeedsFrom: US$35.56- THC: Over 25%
- Yield: 400-500gr/m²
- Flowering Time: 6-8 Weeks
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White Runtz Feminized - Anesia SeedsFrom: Now US$30.99 Was US$38.74- THC: Over 25%
- Yield: 400-500gr/m²
- Flowering Time: 8-10 Weeks
Sale20% OFF - Wedding Cake Auto Feminized 5 SeedsFrom: Now US$33.88 Was US$58.42
- THC: 18%-20%
- Yield: 500-600gr/m²
- Flowering Time: 6-8 Weeks
Sale42% OFF