Dutch Passion has been a quality leader since 1987, pioneered feminised cannabis seeds, and is known for award-winning genetics trusted by growers worldwide. Our cannabis seeds are bred for reliability under UK conditions, with feminised, autoflower, regular and medical seeds suited to indoor and outdoor growing.
Not every grower has the same setup or goals. To help you find the right cannabis seeds, the sections below cover the key considerations for UK growers from buying seeds to choosing the right genetics and understanding how local conditions affect plant growth and final harvests. Whether you’re growing indoors or outdoors, just starting out or refining an experienced setup, you can explore the topics most relevant to you or read through for a complete overview.
The original inventors of feminised cannabis seeds.
Over 100 Cannabis Cup wins and industry honours.
A globally respected seed bank relied upon by thousands of cultivators.
Genetics rigorously stabilised for predictable, high-performance results.
Dutch Passion breeding prioritises strains that give dependable development, abundant bud production and solid reliable bloom. A good number of Dutch Passion outdoor feminised seed and autoflower seed varieties are specifically tuned to thrive in cooler Northern European conditions, including those found across the UK.
Buying cannabis seeds in the UK: legality, delivery & what to expect
In the UK, it's perfectly legal to purchase, possess, sell and transport cannabis seeds. However, germinating or growing them requires a Home Office licence.
Most UK growers prefer to buy cannabis seeds online thanks to the privacy, convenience and wider selection of genetics compared to a typical local seed/head shop. Shopping weed seeds online lets you easily compare strains, grow traits, flowering times and suitability for your next grow.
Fast and discreet delivery: Dutch Passion cannabis seeds arrive in plain, unmarked packaging for maximum discretion. The speed, simplicity and privacy of online purchasing makes it the preferred way that most people buy cannabis seeds.
The different types of cannabis seeds
Feminised cannabis seeds
Feminised seed varieties are bred specifically to produce 95%+ female plants - the ones that grow the sought-after buds. Feminised seeds maximise simplicity, without the hassle of growing and then removing male plants.
Feminised seeds remain especially popular among UK indoor growers, eliminating the need to identify and remove males, allowing you to focus on plant/environmental optimisation.
Autoflowering cannabis seeds
Autoflower seed varieties switch to flowering on their own (‘automatically’) typically after a brief approx 4-5 week veg phase, independent of light cycle changes. Indoors, autoflower seed varieties have earned their reputation for being the easiest type of cannabis seeds to grow. They are an easy recommendation to first time growers or those with less experience.
Their simplicity, speed and wide grow-latitude also makes autoflower seeds ideal for outdoor grows in regions with shorter summers, like much of the UK.
Beginners and outdoor enthusiasts often prefer autoflower seed varieties for their faster seed-to-harvest timeline (typically 10-11 weeks), which helps you avoid late-season weather risks.
Regular cannabis seeds
Regular seeds produce a mix of male and female plants in roughly equal quantities. They're often favoured by old-school growers or breeders interested in preserving particular genetic lines.
How to choose weed seeds for the UK
Successful cannabis seed cultivation requires you to match the best, most desirable genetics to your setup (indoor/outdoor) and experience. Dutch Passion blends timeless classics with cutting-edge modern hybrids. All bred for consistency and strong harvests.
Consider your space, lighting, experience, local outdoor weather patterns and goals when deciding which cannabis seeds to buy.
Cannabis seed selection checklist
Factor
What to consider
Genetics type
Which best suit you? Feminised seeds, autoflowering seeds or regular seeds.
Growing environment
Indoors, outdoor or greenhouse growing may mean very different cannabis seed choices. Some strains have been bred specifically for outdoor resilience, others are optimised for indoor excellence.
Climate suitability
For UK outdoor cultivation, faster finishing strains and autoflowering varieties are often more reliable due to shorter summers and unpredictable weather in September/October.
Flowering time
Different strains have different flowering/harvest times. Faster finishing varieties, and especially autoflower seed options, reduce the risk of weather problems outdoors.
Plant size and structure
Indoor growers often prefer compact plants suited to small spaces, while outdoor growers can often accommodate larger plants.
Yield potential
Some marijuana seed varieties are bred specifically for maximum yields. Others prioritise flavour, potency or terpene profiles.
Cannabinoid and terpene profile
Different strains offer different cannabinoid balances (THC, CBD or 1:1). Terpenes shape aroma and flavour and may also influence the experience through the entourage effect.
Grower experience
Wide grow latitude autoflower seed varieties are especially popular with less experienced growers. A high quality feminised seed variety may suit the experienced grower looking to push the limits.
Matching the best cannabis seeds to your environment, experience and goals simplifies the entire growing process.
If the wide array of cannabis seeds options seems confusing you can also use the Dutch Passion Seedfinder tool for personalised strain recommendations. It asks a few quick questions about your grow environment, experience level and preferences (potency, yield, effects, flavour etc) and finds strains that precisely suit you.
The Dutch Passion customer service team can help you choose seeds based on your goals and growing conditions. They can also answer your questions about seed types and strain characteristics.
Choosing cannabis seeds for indoor growing
With complete control over lighting, temperature, humidity and all other environmental factors the indoor grower can expect the finest quality harvests. Especially when growing the best indoor cannabis seeds. When selecting your next strain, consider your preferred plant height, the flowering time, potency, yield and ease-of-growth etc.
Keep these strains in the nutrient and optical sweet-spot from cannabis seed to harvest and expect top-drawer 25%+ THC levels, stunning flavour and XL yields
Top 5 best-selling cannabis seeds for indoor growing in the UK
Auto Melonade Runtz – elite fruity-creamy melon-candy terps with up to 25% THC in a relaxing hybrid autoflower. A connoisseur favourite for intense flavours.
Ice Cream Haze – Potent sativa-dominant Haze with creamy tropical fruit and spicy ice-cream notes, delivering XXL yields and THC peaks up to 25%.
Slush Mint Cake – Ultra-potent indica hybrid (23-27%+ THC) boasting intense creamy candy, sour fruit, and gassy Cali flavors with award-winning terpenes.
Blue Zushi – Mega-potent USA hybrid with exceptional 2.6% terpene load, over 25% THC, and mouthwatering fruity-sour lemon or gassy profiles for elite connoisseurs.
Auto Skywalker Haze– Sativa-dominant autoflower powerhouse, hitting over 26% THC with zesty lemon-haze aromas and an uplifting, mind-bending cerebral high.
Choosing cannabis seeds for outdoor growing in the UK
UK outdoor growing demands resilience to cooler temperatures, damp conditions and variable weather even in summer. Fast-finishing photoperiods and autoflowers tend to deliver the most dependable results.
While indoor success is achievable UK-wide with proper setup, outdoor performance varies by region.
Northern UK & Scotland. Shorter grow season and early autumns favour autoflower seed growers.
Southern UK — Milder, slightly longer seasons allow more success with feminised seed varieties in favourable years, though autoflower seeds still offer the safest bet for speed.
Top 5 best-selling cannabis seeds for outdoor growing in the UK
Frisian Dew: Legendary outdoor hybrid feminised seed variety with exceptional mold resistance, XXL yields, vibrant purple hues and fresh fruity-floral flavours. Perfect for tough climates.
Auto Euforia: Robust, easy-to-grow and the toughest Dutch Passion autoflower seed variety. A robust auto Skunk delivering pungent aroma, high THC potency and a powerful euphoric uplifting high with reliably heavy yields.
Auto Mazar: Award-winning indica-dominant autoflower offering generous yields, strong relaxing body stone, high THC and bulletproof toughness for beginners and pros alike.
Shaman: Tough Sativa-dominant outdoor classic feminised seed variety with fast flowering, high mold/pest resistance, fresh sweet-spicy fruity aroma, and an energetic uplifting cerebral high.
Auto Ultimate: Monster-yielding autoflower seed variety with exceptional vigour, massive XL harvests (up to several hundred grams per plant in good outdoor/greenhouse conditions), fruity-citrus aroma and a potent balanced stimulating yet relaxing effect.
Why UK growers favour autoflowers outdoors
Their automatic flowering and the fast cycle suits unpredictable UK summers perfectly. Autoflower seeds varieties are often planted outdoors in the UK around mid May, ideally after indoor germination and a couple of weeks under 24 hour indoor light. They take around 3 months to complete their grow cycle allowing UK growers to harvest well before the challenges of unpredictable September/October weather.
Best cannabis seeds for different growing goals
Best cannabis seeds for beginners
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Wide grow-latitude autoflower seeds are often the easiest entry point for new growers because they require minimal management and finish quickly.
Autos and fast-finishing photoperiods such as Frisian Dew and Durban Poison provide the best reliability. Growers with the shortest grow seasons should lean more towards autoflower seed varieties.
Some strains are bred specifically for heavy production and can deliver impressive harvests under optimal conditions. Note that well-grown autoflowers really can hold their own against photoperiods especially when training techniques are applied. Auto Critical Orange Punch and Auto Daiquiri Lime have both demonstrated 1Kg+ indoor harvests recently.
Start with healthy weed seeds in a warm (20–25°C), moist setup. They usually germinate in 24–72 hours, but can take longer occasionally - be patient and avoid the temptation to pull the seed casing off the seedling (it should drop off naturally). Keep the grow medium lightly damp as roots establish and the first sets of true leaves appear.
An aerated grow medium and aerated grow container allow good levels of root oxygenation which promotes healthy growth.
Vegetative Stage
Plants build structure here. Indoors, 18–24 hours of light alongside balanced feeding encourages healthy growth. Techniques like topping or LST help create an even canopy and more bud sites. Avoid the rookie errors of overwatering and overfeeding.
Pre-Flowering & Sexing
With regular marijuana seeds, watch for early signs of sex. Pollen sacs form on males, pistils on females. Remove males promptly to avoid pollination.
Flowering Phase
Experienced growers will aim to keep their plants in the nutrient and optical sweet spot all the way through harvest for maximum terpenes and cannabinoids. Buds swell and resin really starts to build during bloom. For photoperiod feminised weed seed varieties, indoor bloom is triggered by switching to a 12/12 daily light cycle.
Maintain stable temperatures and reduce to 40–50% RH as bloom develops to minimise chances of bud rot. Good airflow, steady nutrition and intense LED light levels help push your cannabis seed genetics to their limit.
Harvest, Drying & Curing
Monitor trichomes, milky with some hints of amber often signals peak ripeness. Proper drying followed by curing enhances flavour, potency and the smoothness of your vaping/smoking experience.
Dutch Passion cannabis genetics, trusted since 1987
Dutch Passion has been developing cannabis genetics in Amsterdam since 1987. The cannabis seed collection includes classic originals alongside some of the finest and most potent high THC modern hybrids. All Dutch Passion strains have to pass tough standards for stability, potency and yields.
A trusted seed supplier since the 1980’s, the many decades of breeding and cultivation experience ensures that Dutch Passion cannabis seeds deliver healthy growth, potent bud development and consistent yields. Grow after grow!
The Dutch Passion seed collection includes feminised seeds, autoflower seeds and regular seeds. This includes specialist strains suitable for indoor, outdoor and greenhouse cultivation.
Dutch Passion’s award-winning strains have received over 100 industry awards and are trusted by cultivators worldwide, including first-timers, repeat growers and licensed professionals. Dutch Passion genetics are frequently featured in respected cannabis publications and grower media.
Yes. Cannabis seeds are legal to buy, sell, own and transport in the UK. However, germinating cannabis seeds without a Home Office licence is illegal. Always ensure you understand current UK laws before making a purchase.
Yes. Purchasing cannabis seeds online is legal in the UK, provided they are not germinated without the appropriate licence. Always ensure you are aware of current regulations before ordering.
Weed seeds, marijuana seeds, pot seeds etc are alternative informal terms commonly used for cannabis seeds. They all refer to the same thing.
Feminised seeds are bred to produce female plants only, removing the need to identify and discard male plants.
Regular seeds can produce both male and female plants. They are often chosen by breeders or experienced growers who want to create new genetics or maintain parent plants.
Photoperiod cannabis plants begin flowering when daylight hours reduce. Autoflower seeds flower automatically after a few weeks of growth, regardless of light schedule.
Autoflowers are often better suited to UK outdoor conditions because they flower quickly and do not rely on long summers. Their shorter life cycle can make them more reliable in unpredictable British weather.
Your choice depends on your growing environment, available space, experience level and desired plant characteristics such as flowering time, size and growth speed. Autoflower seeds are often suited to beginners or shorter outdoor seasons, while photoperiod varieties offer greater control and flexibility.
When stored in a cool, dry and dark environment, cannabis seeds can remain viable for several years.
Store seeds in an airtight container in a cool, dark and low-humidity place.
Cannabis seed size and appearance can vary quite surprisingly. Some strains have small pale seeds. Other strains have larger seeds with the more traditional dark brown and stripe patterns. So long as you buy cannabis seeds from a reputable high quality vendor you should be assured of good (90%+) germination rates regardless of their size, shape and appearance.
Most germinate within 24–72 hours. Occasionally they can take a week or even longer.
You should expect 90%+ germination rates with fresh seeds. Poor storage (not in a fridge), immature seeds or incorrect germination conditions are also possibilities.
