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best cannabis seeds to grow outdoors in the uk

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.

Best cannabis seeds for UK climate

The climate of the UK is 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 UK climate.

The climate of the UK

Before we share our top 5, it’s important to explain the climate of the UK. In this way you understand the growing conditions better and you start your breeding well prepared.

With the exception of autoflowers, 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

Below you will find our top 5 with the best cannabis seeds that grow in the UK climate. Per type you find important information and simply click through to the relevant product.

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.

2. Sexxpot

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.

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.

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 a 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 in the UK? Please read our blog “ Cannabis seeds UK: is it legal? “

Best cannabis seeds to grow outdoors in the uk
The indica growth form allows for excellent light penetration throughout the whole plant with little self-shading as with sativas. The broad leaves are ideal for catching and using the shy UK sun. Short internode spacing and dense layering act as insulation. Indicas originated in cold mountainous climates, which makes them hardy in the face of European winters.

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The Best Outdoor Cannabis Strains To Grow In The UK

Sometimes growing cannabis in the UK or Ireland can be troublesome if you choose an unsuitable strain. Here, we check out some cannabis, that will let you cultivate a world class crop of potent trouble-free weed easily in those short grow seasons.

England and Ireland have weather that is influenced mainly by the sea, so they share a mild humid climate that can fluctuate rapidly. With temperatures rarely getting warmer than 25 degrees celsius at the height of summer and often below zero with snow in winter.

When talking weather, the further south the better. Longer warmer days in general are appreciated by all plants, including of course cannabis. Gulf Stream country with a less punishing winter and more humid springs would let growers plant earlier than elsewhere.

The gentle English summers cannot burn the hardy cannabis plant and they will revel in being planted in full sun when hardened off properly.

Rainy old England may be a dreary cliche, but it does need serious consideration when growing cannabis. Make sure your soil or pots drain well to avoid water logging. Cannabis dislikes too much wet for too long.

Growing cannabis in tropical climates requires knowledge and correct genetics. Check out the perfectly-suited strains for tropical climates.

Resins produced by cannabis are hydrophobic and help keep the delicate flowers dry. These terpene-rich compounds also act as anti-fungal agents, but not indefinitely. After continuing rain or fog during the later stages of flowering, when dense calyx clusters become susceptible to moulds and fungus, check your plants regularly for any signs of rot or water stress.

BEST CANNABIS SEED STRAINS FOR UK & IRELAND

Indica-dominant strains will always dominate when the grow season is short. Indica harvests are usually well and truly ready in early October.

The indica growth form allows for excellent light penetration throughout the whole plant with little self-shading as with sativas. The broad leaves are ideal for catching and using the shy UK sun. Short internode spacing and dense layering act as insulation. Indicas originated in cold mountainous climates, which makes them hardy in the face of European winters.

Sometimes growing cannabis in the UK or Ireland can be troublesome if you choose an unsuitable strain. Here, we check out some cannabis, that will let you cultivate a world class crop of potent trouble-free weed easily in those short grow seasons.

DURBAN POISON

Mould resistant and quite quick to mature. Two things a sativa loving grower likes to hear in the UK. Sativas can be a challenge to grow in countries that don’t have very long autumns to let plants mature for fourteen or sixteen weeks.

That classic licorice taste of South Africa can be yours in a very reasonable flowering time of seven to nine weeks. Being resistant to mould is a bonus in a damp climate and it makes for fungus free greenhouse growing.

BLACK WIDOW

Black Widow will certainly be a one metre tall stinky baseball bat when finished if grown indoors and may reach a strapping two metres outdoors. If treated ideally she will give you a generous 300 grams of the sticky icky. Indica all the way this stout and heavily flowering plant produces resinous buds that will surely satisfy the most demanding indica aficionado.

EARLY SKUNK

Harvesting Skunk quicker is always a bonus. Skunk has certainly become mythic over the decades. As a stand-alone stand out itself in growability and effects and as a parent for many outstanding strains of weed. Early Skunk delivers that distinctive knuckled central cola that hearkens to the sativa echoes in the skunk genetic makeup.

ORANGE BUD

When Skunk was being developed, the mountain bred Afghani indicas used to shorten the flower time of the tropical Sth American sativas left an enduring legacy in the cannabis breeding world. Short flower times for sativa dominant hybrids using Skunk.

Orange Bud is Skunk all the way with years of careful breeding producing what can honestly be called an Amsterdam classic. Easy to grow, pest and fungus resistant and ready very quickly compared to other sativa dominant strains makes Orange Bud ideal for the sativa loving UK grower.

PURPLE OG 18

Leaves that look like they have been cut from purple felt. Knotted calyxes swollen out of shape. All smothered with a tangle of resin swollen trichomes are what you can expect after 8-9 weeks with this indica dominant gem. Purples are fascinating to watch grow and by harvest time the cold UK weather would see your plants going the colour of smoke on the water under a full moon. Unbeatable solid nuggets of 18% THC purple potency.

BEST TIME TO GERMINATE SEEDS

Plants are usually germinated in April ready for spring vegetation, but this may still be too cold in many places and waiting until May to avoid late frosts can be prudent. The spring equinox barely brings sufficiently strong daylight hours for proper vegetation if you are growing outdoors. Harvest is generally around October. Of course maturing times are species-dependent and you may be enjoying indica buds early or sativa late.

Germination and early vegetation under supplemental lighting prior to spring can increase end yields substantially. Saving young plants the struggle of staying alive in colder weather makes for a longer vegetation time and more prolific flower sites on larger plants.

Harden off plants under lights a few weeks prior to putting them in their final outdoor growing space. When hardening off cannabis seedlings, introduce them to a protected outdoor space for a few hours per day. Increasing their amount of exposure per day until they are outdoor ready.

Written by: Zamnesia
Zamnesia has spent years honing its products, ranges, and knowledge of all things psychedelic. Driven by the spirit of Zammy, Zamnesia strives to bring you accurate, factual, and informative content.

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