Best cannabis seeds for UK climate
The UK climate is generally cold and wet. Not ideal for the cultivation of a weed plant. Of course you don’t suffer from this when you grow indoors, but if you want to grow outdoors in the UK, it can be a challenge. Fortunately, breeders have developed varieties that can produce good yields even in the climates of the UK. Good results do I hear you think? We actually mean excellent results!
In this blog we show you our top 5 best cannabis seeds for the UK climate so continue reading and check it out!
Tip: check our full range of weed seeds
The UK climate
Before we share our top 5, it’s important to understand the climate of the UK when it comes to growing cannabis outdoors. In this way you understand the growing conditions better and you start your breeding well prepared.
With the exception of autoflowering cannabis seeds, the flowering of marijuana strains is seasonal, which means that outside growers in the UK germinate their seeds between April and May and, depending on the species, harvest between mid-September and the end of October.
Although the climate in the different regions of the UK is not very different, it’s important to realize that the climate in the UK is not the same everywhere. However, in general you can say that the UK climate is characterized by cold and wet winters with relatively cool summers. That are precisely the greatest negative factors for the growth of a cannabis plant. Both cold weather and frost can have an adverse effect on the harvest. The UK climate is therefore not ideal for outdoor growing. Nevertheless, it’s possible to realize a qualitative outdoor cultivation in the UK. Especially if you choose the right strain.
In our top 5 you will therefore find the five most robust types of weed that can produce excellent results even in the most ruthless circumstances.
Our top 5 with the best cannabis seeds for the UK climate
Curious to the best outdoor weed strains for the UK? Buy a pack of the presented cannabis seeds below to make sure your grow in the UK will be a success!
Check our top 5! For each specie you find important information. Want to get the information of a strain fast? Simply click on one of the products below.
1. Northern Lights autoflower
The Northern Lights autoflower is probably one of the most robust species in our range. Instead of flowering during the transition from summer to autumn it flowers based on age. Because this species is strong and also less dependent on the weather, this species is suitable for outdoor growing in the UK.
Our Sexxpot feminized cannabis seeds are a big hit in the USA, but also gain popularity in the UK. That isn’t strange at all. Sexxpot is a strong strain that can take a beating.
Note: these are non-autoflowers and therefore need shorter days to flower. In order to harvest in October, the seeds will have to be planted in April or May.
Tip: check our feminized Sexxpot cannabis seeds
3. OG Kush
OG Kush contains 75% Indica genes. It’s a very strong strain that can be grown in almost any climate. From cold climates to warm climates. This species is robust and is capable of producing high quality weed even in the deplorable outdoor conditions of the UK.
Note: out OG Kush seeds are non-autoflowers and will therefore have to be planted between April and May to be ready for harvest in October.
Tip: check our feminized OG Kush strain seeds
4. Big White Widow autoflower
Do you want to limit the risk of a failed harvest and do you think the production of a normal autoflower is too low? We have some good news. Our Big White Widow auto can grow up to 180 cm high. Besides, they produce high yields and aren’t dependent on the transition between summer and autumn to bloom. Moreover, the Big WW is a very strong and reliable strain, suitable for outdoor cultivation in the UK climate.
5. Critical autoflower
Critical autoflowering is one of our fastest flowering autoflowers and produces a high quality weed production. With its strong genetic background (50% Indica, 30% Sativa and 20% ruderalis genes), Critical is a very strong autoflower that will develop well in harsh conditions. In short: suitable for the UK climate.
Want to know more about the law concerning cannabis seeds and growing in the UK?
Hunting the best cannabis seeds for UK climate? Check our top 5: the best cannabis seeds for outdoor growing in the UK. Buy via Weedseedsexpress!
Growing Cannabis Outdoors In The UK: Month-By-Month Guide 
Don’t let the heavy rain and seasonal humidity put you off. It’s perfectly possible to raise a healthy and vibrant crop of cannabis plants outdoors in the UK. Follow our in-depth guide below to find out how.
A complete month-by-month guide to growing cannabis outdoors in the UK.
Growing outdoors comes with a unique set of challenges per location. Everything needs to be considered, from local pest species to the best strain for the job. Simply follow the growing guide below to boost your chances of a successful outdoor harvest in the UK.
GROWING CANNABIS OUTDOORS IN THE UK IN 2021
Growing cannabis outdoors in the UK usually involves (at least) one consistent weather condition: rain! Your plants will rarely go thirsty or wilt from the heat. The UK experiences a temperate climate defined by cool, wet winters and warm, wet summers. The country rarely experiences extreme weather events, although flooding and droughts do occur from time to time. The UK sees an average of 133 days of rain and around 1,350 hours of sun per year. This fine balance of rain and sun gives plants plenty of the key resources to develop properly.
The UK features four climate segments:
• South-east: This region experiences cold, biting winters along with warm, dry, and pleasant summers. Continental winds keep things relatively dry in general. South-east UK encompasses London, Brighton, Cambridge, and Norwich.
• South-west: This area of the country sees mild and very rainy winters contrasted by warm and wet summers. Tropical winds from the south extend the growing season. Includes Cornwall, Devon, Bristol, and Cardiff.
• North-west: The north-west experiences mild winters and cool summers. Maritime winds bring a whole load of rain all year round. This region covers Northern Ireland, northern Wales, and western Scotland.
• North-east: Arctic winds from the north bring cold winters, cool summers, steady rain, and a shorter growing season. Includes Newcastle, York, Edinburgh, and Aberdeen.
IS WEED LEGAL IN THE UK?
Unfortunately, the United Kingdom is lagging behind more progressive European nations when it comes to cannabis legislation. The government categorises cannabis as a class B substance, meaning mere possession can lead to a maximum 5-year prison sentence, an unlimited fine, or both. Growing and supplying cannabis can lead to the more extreme punishments of up to 14 years in prison, an unlimited fine, or both.
Despite the draconian nature of UK cannabis laws, things are improving. CBD products are widely available over the counter in stores, so long as they possess no more than 0.2% THC. The government also allowed doctors to start prescribing cannabis products to patients in 2018. In 2019, the NHS received the all-clear to start prescribing cannabis-based products for Lennox–Gastaut syndrome and Dravet syndrome.
The UK has a long way to go to match the more relaxed approaches of certain American states and European nations.
A GUIDE ON GROWING CANNABIS OUTDOORS IN THE UK
Below, we’ll generalise and focus on the south-east, south-west, north-east, and north-west, while touching on specific locations along the way. It’ll help if you do a little more research on your specific area just to make sure you have all the bases covered.
• Day length March 1st: 10h 57m
• AVG temperature: 3–10°C
March marks the official start of spring. However, things are still pretty chilly in most of the country. But this doesn’t mean growers can’t get a head start indoors. Start germinating your seeds and placing emerging seedlings under LED lights or on a sunny windowsill.
Start weeding your beds and dressing them with high-quality compost. Layer them with straw or wood chip mulch to trap moisture and prevent weeds from returning. If you’re growing in containers, dress them with good compost, too. Start cleaning out and preparing your polytunnel or greenhouse, if you’re lucky enough to have one. Scrub down any algae from the glass panels, brush out debris, and get it ready to host your cannabis plants in the coming weeks.
Certain microclimates around the UK allow lucky growers to plant outside during March. Cultivators in the Scilly Isles, Anglesey and Dungeness usually see the last frost around late February.. Pay close attention to the forecast and decide whether the risk might pay off. Make sure to keep a backup crop growing indoors just in case.
• Day length April 1st: 12h 59m
• AVG temperature: 5–13°C
April brings a significant improvement in weather and sunlight. Bluebells, wild garlic, and other aromatic spring flowers lead the charge of emerging plant life. Although April brings a nice, warm heat, frost still poses a significant risk. Growers in most regions will need to keep their plants indoors under lights and on windowsills for a couple more weeks to be safe. However, cultivators with greenhouses or polytunnels will be able to safely move their plants to these structures during April.
Only water your seedlings when the top inch of soil dries out, being careful not to overwater. Head out into the garden and keep the “bad weeds” under control. You’ll be able to sow hardy companion plants during April, such as peppermint, yarrow, coriander, and marigold. These plants will start flowering in the coming months, helping to distract pest insects and attract beneficial ones. Take a stroll around your beds, look out for weeds, and remove them by hand if you stumble across any.
Follow this month-by-month guide to grow a crop of healthy and productive cannabis plants outdoors in the UK in 2021.