Top 10 Best Outdoor Autoflower Seeds UK 2020

Top 10 autoflowering strains to give you an advantage in the cold and humid UK weather.
Author Enzo Schillaci
14 July 2020
10 min read
Top 10 Best Outdoor Autoflower Seeds UK 2020

Contents:

If you’re an outdoor grower and are looking for the best autoflowering genetics to grow outdoors in the UK, here is our top 10 seeds selection for 2020.

1. Climate In The United Kingdom

The climate in the UK is usually very humid and cold. You have to choose the strains carefully to avoid problems. By knowing the weather for the next couple of months you can plan your cultivation so you start when there's good weather and a good amount of sunlight hours.

By having (and understanding) a chart like this, you will ensure your plants grow in the best climate possible, this way you can predict when you'll have more sunlight for your plants to develop better, an appropriate temperature so your plants develop properly and less humidity so you don't suffer from bugs or plant disease, ultimately resulting in bigger yields, less problems and an overall healthier plant.

 

MonthMax. temperature C°(F°)

Min. Temperature C°(F°)

Sunlight HoursRel. Humidity
 June

 18.6 (65.5)

 9.7 (49.5) 16hs 75%
 Jul

 20.4 (65.5)

 11.7 (53.1) 16:30hs  69%
 Aug

 20.1 (68.2)

 11.5 (52.7) 16hs 72%
 Sep

 17.5 (63.5)

 9.6 (49.3) 14hs 76%

Climate in the United Kingdom month-by-month1.
 

It’s ideal to grow Indica dominant strains and preferably good genetics that are highly resilient for cold and humid climates. 

Cold and humid climates tend to attract bugs and mold, so it’s crucial you take good care of your cannabis plants in climates like this.

Here’s our top 10 strains that will give you an advantage over the harsh climate outdoor growers in the UK suffer from.

2. Gelato Auto

This strain has become a flagship for its delicious flavor, it is a stable plant that takes harsh climates very well.

Gelato Auto
Gelato Auto
Genes
Sativa 55% / Indica 45%
Genetics
Gelato Auto
Flowering
9 weeks
Harvest
XL
Height
70-100cm
THC
Very High - up to 26%
CBD
Low
Autoflowering
Yes
Buy seeds from 13,00 €
 

It's an extremely potent and resilient strain, develops really well in cold and humid climates, and with up to 26% THC.

A great choice to grow outdoors in the UK, not only for the potency but for the high resiliency.

 

Gelato auto

Gelato from our grower Wildeweed from Grow Diaries.
 

Grow Tips

  • Due to her bushy foliage, it is recommended light defoliation or LST training to avoid mold and pests.
  • Her extreme resin production makes her a good choice for making hash or other extractions.

3. Gorilla Cookies Auto

Thanks to its Indica lineage, this strain grows compact, robust, and is extremely resistant to diseases and cold weathers, these traits will give you an advantage when growing outdoors in cold and humid climates like in the UK.

Gorilla Cookies Auto
Gorilla Cookies Auto
Genes
Sativa / Indica
Genetics
Gorilla Cookies Auto
Flowering
10 weeks
Harvest
500-600gr/m2
Height
90-100cm
THC
Up to 27%
CBD
Very Low
Autoflowering
Yes
Buy seeds from 13,00 €
 

By providing an appropriate pH level and good nutrients you’ll be amazed at the insane trichome production, even needing to provide support so the branches don’t snap due to the huge dense buds.

 

Gorilla cookies auto

Gorilla Cookies from our grower Hawkbo.
 

Grow Tips

  • Gorilla Cookies can take a big feeding especially during week 3 and onwards, make sure you feed her properly to increasean autoflowering plants yields and overall quality of your harvest.
  • This incredible producer may need support when flowering, make sure you have bamboo stakes available for the last weeks of flowering.
  • We recommend tying the branches or performing LST to avoid mold and provide more airflow for the buds to develop better.

4. Strawberry Pie Auto

This Indica dominant hybrid is easy to grow, suited for pros and beginners, it’s a great choice to grow outdoors in cold and humid climates like in the UK because of her Indica lineage. 

Strawberry Pie Auto
Strawberry Pie Auto
Genes
Mostly Indica
Genetics
Strawberry Pie Auto
Flowering
8-9 weeks
Harvest
400-550gr/m2
Height
60-100cm
THC
Up to 26%
CBD
Very Low
Autoflowering
Yes
Buy seeds from 13,00 €
 

Have in mind that even though she can resist cold climates, you should perform LST to provide more airflow to the buds, this way you avoid mold and bugs that thrive in humid climates and can attack your plants.

 

Strawberry Pie from our grower Smokinghills_9.
 

Grow Tips

  • This strain prefers light feedings, make sure you water accordingly and let at least 80% of the soil dry before watering, to avoid bugs that reproduce in wet organic matter, like Fungus Gnats.
  • Make sure you flush properly during the final weeks of flowering, this way you make her colors stand out and guarantee a smooth smoke, and a strong aroma and flavor.
  • By low stress training your plant (with LST or other methods), you can yield more than 550gr/m2 in around 8-9 weeks.

5. Zkittlez Auto

Thanks to its Indica heritage, this hybrid grows compact with multiple bud sites and it’s super easy to grow outdoors, requiring low maintenance.

Zkittlez Auto
Zkittlez Auto
Genes
Mostly Indica
Genetics
Zkittlez Autoflowering
Flowering
9-10 weeks
Harvest
XXL
Height
70-100 cm
THC
23%
CBD
Very Low
Autoflowering
Yes
Buy seeds from 13,00 €
 

Because this plant grows a lot of side branches close together with dense buds, we recommend tying them down to avoid problems with mold, due to the humid climate in the UK.

 

Zkittlez from our grower UnkleSkunk.
 

Grow Tips

  • Being one of our hefty producers, we recommend providing support so the branches can withstand the weight of the buds.
  • This strain tends to need a lot of nutrients, so we recommend you feed her quite heavily and with good quality nutrients.
  • To avoid bugs, it is highly recommended you LST, providing more airflow in between the buds and branches.

6. Purple Lemonade

Purple Lemonade is a vigorous and sturdy strain and is a great choice both for indoor and outdoor growers.

Purple Lemonade
Purple Lemonade
Genes
70% Indica / 30% Sativa
Genetics
Purple Lemonade
Flowering
9-10 weeks
Harvest
XL
Height
70-110cm
THC
Up to 22%
CBD
Low
Autoflowering
Yes
Buy seeds from 13,00 €
 

Even though she develops exceptionally well without nutrients, you can have an amazing harvest by providing good quality nutrients and proper usage.

 

Purple Lemonade from our grower bigdaddyk.
 

Grow Tips

  • Flushing during the last two weeks is recommended to make her flavor and smell really stand out.
  • Because this strain can grow up to 110cm, we recommend performing LST of tying down the branches to keep your plants discreet.

7. Lemon Pie Auto

This hybrid is super easy to grow, well suited for beginners, and is very resistant to pests and mold while requiring low maintenance. It is a great choice for outdoor growers, who look for an extremely resinous strain.

Lemon Pie Auto
Lemon Pie Auto
Genes
Mostly Indica
Genetics
Lemon Pie Auto
Flowering
8-9 weeks
Harvest
450-550gr/m2
Height
80-100cm
THC
Up to 24%
CBD
Very Low
Autoflowering
Yes
Buy seeds from 13,00 €
 

Just like the Strawberry Pie Auto, this Indica dominant strain grows dense and bushy, with a lot of side branches, and even though it’s a highly resilient strain, due to the climate in the UK we recommend LST or other forms of plant training to avoid pests and mold.

 

Lemon Pie Auto from our grower Hawkbo 

Lemon Pie from our grower Hawkbo.
 

Grow Tips

  • Remember to always keep an appropriate pH level for the medium you’re growing in, this way you ensure your plant is absorbing nutrients properly and avoid any problems.
  • We recommend growing Lemon Pie in 15L pots to make sure the plant develops to its fullest.
  • By low stress training your plant (with LST or other methods) you prevent mold and can ultimately yield more than 550gr/m2 in around 9 weeks.

8. Stardawg Auto

Stardawg Auto is ideal for new growers and pros, she can easily forgive novice’s mistakes and can put up with training methods.

Stardawg Auto
Stardawg Auto
Genes
Sativa/Indica
Genetics
Stardawg autoflowering
Flowering
9-10 weeks
Harvest
XL
Height
70 - 120 cm
THC
Very High
CBD
Low
Autoflowering
Yes
Buy seeds from 11,00 €
 

Even though this is a robust and resilient plant (ideal for growing outdoors), she grows quite bushy due to her Indica heritage so we highly recommend LST techniques.

Because the UK has a humid and cold climate, the extremely dense buds can get mold if you don’t provide good airflow.

 

Stardawg from our grower Hawkbo from Grow Diaries.
 

Grow Tips

  • We recommend LST techniques not only to improve yields but also avoid any kind of problem with bugs and mold.
  • Beware, this plant reeks of pine and diesel, and the smell can be hard to mask when growing outdoors.

9. Original Auto OG Kush

This is the most powerful strain from Fast Buds Originals. A super easy to grow plant with a powerful terpene profile, perfectly fit for new growers.

Stardawg Auto
Stardawg Auto
Genes
Sativa/Indica
Genetics
Stardawg autoflowering
Flowering
9-10 weeks
Harvest
XL
Height
70 - 120 cm
THC
Very High
CBD
Low
Autoflowering
Yes
Buy seeds from 11,00 €
 

Thanks to her Indica lineage she grows exceptionally well in cold climates (ideal for the UK), as she is used to the cold California night times and doesn’t require a lot of maintenance while yielding up to 550gr/m2 in around 63 days. 

 

Original OG Kush from our grower Fish88.
 

Grow Tips

  • Be careful when growing outdoors, the terpene profile on this strain can be felt from far away.
  • Make sure to give her enough nutrients, as this strain tend to take a lot of nutrients to develop to its maximum.

10. Blackberry Auto

This is one of our cup winner strains, an unbelievably easy to grow autoflowering plant, great for beginners. This Indica hybrid is a very popular choice for growing outdoors in a cold harsh weather like in the UK due to her lineage.

Blackberry Auto
Blackberry Auto
Genes
Mostly Indica
Genetics
Blackberry Kush Autoflowering
Flowering
9 weeks
Harvest
XL
Height
70-110cm
THC
23%
CBD
Low
Autoflowering
Yes
Buy seeds from 11,00 €
 

You will be amazed by her ability to off bugs, and withstand cold weathers, while yielding 500gr/m2 in around 9 weeks.

 

Blackberry from our grower Philindicus.
 

Grow Tips

  • We recommend flushing 2 weeks prior to harvest to remove excess nutrients and reveal her true flavor and aroma.
  • Even though she’s highly resilient to cold and humidity, we recommend LST to provide air flow to avoid bugs when growing outdoors.

11. Original Auto Cheese

Original Auto Cheese is very easy to grow and one of our most productive strains, a great strain to grow in the UK because thanks to her Indica heritage she can yield up to 550gr/m2 even in cold climates.

Cheese Auto
Cheese Auto
Genes
Sativa / Indica
Genetics
Cheese Autoflowering
Flowering
9 Weeks
Harvest
400-550 gr/m2
Height
70-110 cm
THC
Up to 21%
CBD
Very Low
Autoflowering
Yes
Buy seeds from 9,00 €
 

Even though she can withstand harsh climates, we recommend LST techniques to provide more airflow to the buds, because they are extremely dense, water can get stuck in them and that is where mold thrives.

 

Original Cheese from our grower PharmaZ.
 

Grow Tips

  • Be extremely careful when growing outdoors as she reeks of a pungent smell and can bother your neighbors.
  • This plant grows short and stout, perfect for a discreet outdoor grow.

12. In Conclusion

If you’re thinking of starting your next growing cycle outdoors you can’t go wrong with these strains. Have in mind that even if they’re resistant to disease and cold climates, they still need a minimum amount of maintenance and care so you avoid any problems.

We hope our 2020 strain selection will help you to prepare for your outdoor growing season in the UK and if you have grown autoflowering strains in the harsh climate before share your experience in the comment section.

EXTERNAL REFERENCES

   1. UK Met Office:

 http://www.meteomont.gov.it/infoMeteo/jsp/mwablx812I.jsp 

Top 10 Strains For Cold Climates

Cheese Auto
Cheese Auto
One of the most unique autoflowering terpene profiles we’ve ever created!
Buy seeds from 9,00 €
Gelato Auto
Gelato Auto
Our most powerful strain yet. 26% THC lab reports, and distinct Ice cream flavours. 
Buy seeds from 13,00 €
OG Kush Auto
OG Kush Auto
Next level potency and delicious Kush flavor
Buy seeds from 9,00 €
Show more strains (5)