Amsterdam Seed Supply – Buy Marijuana Seeds Online – ✓ Buy Cannabis Seeds Online ✓ Great Customer Service ✓ Cannabis Cup Winners ✓ Worldwide Discreet Shipping High quality weed seeds for outdoor growing. At i49 Genetics Seed Bank you can buy an amazing selection of outdoor feminized and autoflower cannabis seeds. Successful outdoor growing is achievable in a wide variety of climates. Choosing the best cannabis seeds for your local growing conditions is vitally important.
Outdoor cannabis seeds
Make use of our handy ‘Climate Map’ that shows the three key areas that marijuana will grow into select the growing conditions. In all areas, the summer months are best suited for marijuana cultivation. So, the right time for growing marijuana is April – October in the northern hemisphere and October – April in the southern hemisphere. The weed usually blooms into shorter days and a majority of the strains are pushed into the blooming process with less than twelve hours of light.
On the other hand, in the warm tropical regions, where light is always around for twelve hours per day, marijuana can be grown all year long. Growers can provide their plants with an additional day-length in the beginning to give a chance for the plant to grow. If the plant does not get extra light, it will bloom right away, though with a very low yield. Amsterdamseedsupply has an excellent assortment of a wide range of outdoor strains for meeting all your cannabis cultivation needs.
Outdoor cannabis seeds for cool climate
All cannabis seed strains don’t offer the same kind of results across all the climatic conditions. Different strains are suitable for varying climates. When considering the best strains to be grown under colder climates, the topmost considerations need to be the ability of the seeds to resists pests and moulds that are common in such conditions and a short flowering time so that they can finish before the extreme weather conditions.
The collection of our outdoor cannabis seeds for cool climate possesses all these properties. They score high when it comes to pest and mould resistance. Secondly, they also have quick flowering periods, which means you are ready to harvest your cannabis plants at just the right time.
Each strain in this category is hand-picked by our expert cannabis breeders and they are sure to provide great results. Simply browse through our collection of cannabis strains for cold climates and choose the one that you like the most.
Outdoor Cannabis Seeds
Head-focused, creative, and physically energizing. Feel more alive than ever with this strain.
AK-47 delivers an energetic and uplifted cerebral-buzz that also can bring on alertness, creative and social enhancements and a general feeling of euphoria.
It’s energizing high is more likely to leave you wired than sleepy, so smoking shortly before bedtime is not recommended.
Hailing from the Hindu Kush mountain ranges near Afghanistan, this ancient strain has always been known for its deeply relaxing and sedating effects and aromatic, resinous buds.
Patchwork genetics produce a stimulating Sativa capable of skyrocketing thoughts and actions into the most spectacular of realms!
A high-yielding, fierce and fast flowering Sativa with spicy floral notes.
This easy to grow autoflowering strain yields 350 – 400g indoors and is extremely potent.
Amnesia like the name promises with get you lifted and forgetting all your woes. Award winning strain that can have strong cerebral effects – uplifting and mellow.
Retaining the Diesel taste from its OG lineage along with the famous flavor of its Cheese parent. The strain for those wanting an uplifting and energetic high.
A bubblegum you can smoke and reach the high heavens with.
Fragrant and mouthwatering. Tease your palate with a burst of bubblegum.
Buy this strain for a potent, resinous plant that has an amazing fruity taste. You can enjoy 10 weeks from seed to harvest from this auto feminized strain.
This is a great strain to try if looking for an easy grow. This Indica is sure to cause long lasting relaxation with a mellow effect.
Auto Blue Fruit is a moderate THC Indica dominant hybrid with a blueberry pie bouquet!
Bruce Banner, but faster. Get high on your favorite strain with less fuss and more fun!
This automatic flowering Sativa provides a sweet slice of relaxation with a scoop of cognitive stimulation.
This perfectly blended hybrid is a favorite as it produces the stickiest dense buds. Plan for an average yield of 400-550 g/m2 indoors.
Smash negative thoughts out of your head with Bruce Banner x Kali Mist.
A fun, euphoric, and energetic high lends to being effective any time of day.
A relatively short plant with high-yielding flowers will bud quickly and give you lots of relaxing, and appetite-stimulating effects. High doses will promote psychedelic effects, even sleepiness.
Resin coated buds grow close together but a high flower:leaf ratio means this plant is still very resistant to humidity.
This beautiful blend will grow tall with deliciously resinous buds and reward you with a well-balanced cerebral high and body relaxation.
Auto Critical 2.0 has next level moisture, disease, and pest resistance!
Expect a dreamy, euphoric, and happy influence with a side-order of forgetfulness.
Boost your mood and mental faculties with this positively euphoric strain.
Cerebral high? Check. Fast-growing? Check. Healing effects of CBD? All checks across the board!
Auto Kush CBD Fem is a gentle and therapeutic auto flowering strain that provides psychedelic effects, sweet aromas, and moderate yields.
You can combine work with chilling out? Balance your life with CBD Kush.
A deliciously fruity strain tailor-made for the medical marijuana community.
A Dutch coffee shop menu staple that has been enhanced with healthful CBD.
Relaxing yet euphoric. Wrap up your day with this highly delectable treat.
Experience a therapeutic and highly relaxing journey like no other.
Experience intense relaxation and calm while luxuriating in the sweet vanilla scent.
A medicinal strain that is as glamorous as it is powerful.
The first few tokes treat you very sativa – happy and uplifted, then when the Indica creeps in later, you will find yourself searching for a couch to lean on!
Bippity boppity boo. Experience the magic of Cinderella99 faster than before, no spells needed!
Clear your schedule for the biggest and baddest nuggets you will ever encounter.
Mild THC levels offer a lighter high for daytime use, although you will still notice the effects both mentally and physically.
It will tolerate most environments as long as its friends and family tolerate the smell of putrid, smelly socks.
A safe bet for those who want to be certain to obtain a heavy yield.
Mentally stimulating with a touch of physical relaxation. Conquer the day with this strain.
Delight your senses with a sweet earthy smell. Envelope your body with deep relaxation.
Be in awe as your mental stimulation and sociability soar through the roof.
Stress-free nights with Auto Cream are sweet and sedating, infused with 19% THC.
The biggest buds you’ve ever laid eyes on, coupled with a heavenly stone.
The benefits of this cannabis strain are crystal-clear: outstanding aroma and euphoric relaxation.
This plant is very compact (60-80 cm) and easy to grow both indoors and outdoors.
Puts a smile on your face and a spring in your step.
This funky Skunk doused will make you want to welcome it into your home.
You don’t need a fairy godmother to get your hands on this chocolate orange cannabis.
Let the Widow wash away your anxiety and soothe your body.
She’s a royal flower who tastes like a fruity, mocha-drizzed truffle.
Supremely decadent with an intense cerebral buzz and relaxing aftermath.
A fruity tropical treat that can share branch-breaking yields.
This one creeps up on you with a full-body high that comes on like a wave.
Considered a fairly stable and reliable strain. Even if you grow multiple plants, you’ll generally find that their size, appearance and yields should be pretty similar across the board.
Big Devil XXL provides consistently large yields for an auto flowering strain and a few puffs will invite you to face your fears and share with your peers!
This bud is your panacea!
Bringing Skunk potency, heavy harvest, and easy to grow quality without the stink!
Eternally mysterious, but its potency will surely answer all of life’s questions.
Wake up to the greatness of two top-shelf crowd-pleasers today.
Creative, energetic, and focus-enhancing. Perfect for daytime use.
A recipe for double the flavor and double the fun.
Intensely fragrant and flavorful. Experience the glorious blend of cerebral uplift and profound body stone.
Tasty and wonderfully balanced. Perfect for your recreational and therapeutic needs.
Also knows as “Original Glue”, this powerful hybrid strain is created through crossing the infamous Chem’s Sister x Sour Dubb x Chocolate Diesel strains.
Like baking cookies, growing this strain is easy, but requires time and attention. Your childhood wishes have all finally came true: cookies now do grow on trees.
Proof that you can never have too much of a good thing.
Awesome gets awesomer with the combination of two cannabis classics.
The high is very uplifting, energizing, and happy although the user may get a sense of “brain-fog” when consumed in high levels.
What happened in Spain did not stay in Spain – luckily!
It has calming medicinal properties that relieve stress and pain, promoting a good night’s rest.
A medicinal marijuana masterpiece that delights with a tropical flavor.
A true cannabis classic.
Just like the full moon over the Hawaiian islands, mysteriously serene and unexpectedly exciting.
Named after the Cannabis activist Jack Herer, this strain will also keep you active! Very uplifting high prompting creativity and daydreaming.
Captures the cerebral stimulation of Sativas and the resin factory of Indicas.
Expect robust cerebral and euphoric effects, unlike any other.
Lavender is what the Garden of Eden smells and feels like.
Lemon OG gives new meaning to the term presidential.
The easy-to-grow hybrid for afternoons that need uplifting and some cerebral, lemon-flavored fun.
This prized weed is now in easy-to-grow autoflowering form.
The effects come on slowly as you’re hit with this full body-high wave that will chill you right out.
A refreshing bouquet of eucalyptus and pine fills the air with this automatic flowering, medium THC Indica dominant beauty.
Growing cannabis from seed outdoors
There are a number of reasons why thousands of cultivators choose to grow marijuana outside in their gardens.
For starters, you’re not limited by space, meaning you can raise multiple crops at once. You also don’t have to worry about the height of your cannabis plants, allowing them to reach their maximum size.
One of the biggest benefits of choosing outdoor weed seeds is their ability to produce bigger yields compared to indoor setups. As a result, you get more bang for your buck and ensure you have enough buds to last through the winter.
Another reason this cultivating method is popular is that it’s budget-friendly. You don’t need to buy any expensive lights or other growing equipment as crops rely solely on the sun to mature.
Even though raising high yield outdoor seeds is easy, you’ll still need to give your cannabis plants plenty of attention. We suggest pruning your marijuana crops regularly to maintain air circulation and prevent bud rot from ruining your harvests.
When it comes to germinating your weed seeds, we recommend using the paper towel technique over planting directly into the soil. This method is simple to perform, making it ideal for beginners, and it cuts the waiting time down to five days.
Mineral-rich soil is a fantastic choice of medium for outdoor cannabis seeds as it provides your plants with essential nutrients. Not only will it keep your marijuana crops strong and healthy, but it also enhances the strain’s signature flavor profile.
The only downside to using soil from your garden is that it’s a potential breeding ground for pests. Many cultivators opt for a sterile option for their outdoor weed seeds like coco coir to eliminate this issue.
This type of soilless medium also retains moisture very well, ensuring your crops won’t dry out quickly. Since coco coir doesn’t contain any minerals, you’ll need to add a balanced fertilizer when feeding plants to keep them healthy.
When raising high yield outdoor seeds , you’ll need to plan your growing schedule according to the warmer months. Cultivators that live in the Northern Hemisphere should start the germination process in April.
Your cannabis crops can then soak up the Summer sun and start flowering before the start of Fall. Most photoperiodic strains are then ready for harvest by late September or October, just missing out on the first frost.
It’s crucial to give your outdoor marijuana seeds as much light as possible once they’ve germinated, regardless of their genetics. Cannabis plants need an average of 10–12 hours of sunlight every day in order to provide generous yields.
The key to growing weed outside in your garden is giving your crops enough water. Most beginners end up overwatering their outdoor cannabis seeds in fear of them drying out. As a rule of thumb, it’s best to wait 2–3 days before feeding your plants again.
Another way of preventing overwatering if you’re growing in pots is to learn the dry weight of your container. That way, you’ll know if your marijuana plants are hungry or if you should wait longer before watering them.
We also recommend investing in a pH meter to keep an eye on the health of your high yield outdoor seeds . Cannabis requires a slightly acidic medium to ensure roots can absorb nutrients.
These devices also tell you how much moisture is in the soil, making it easier to determine when to feed crops.
Choosing the best location to grow cannabis
Finding the optimal spot for your outdoor weed seeds in your garden will improve your chances of harvesting big yields. Here we take you through the steps necessary to find the perfect location for your cannabis crops.
The first variable you need to take into account is the amount of exposure your marijuana plants have to the sun. As we’ve mentioned, crops need as much light as possible, so find an area that’s southern-facing for optimal results.
The next aspect to consider when finding an area for your high yield outdoor seeds is the presence of structures. If your region experiences strong winds, try planting your cannabis crops next to a natural windbreak to avoid broken branches.
Cultivators living in colder climates should grow marijuana plants near brick walls to help retain the warmth. Just make sure the structure doesn’t cast a shadow and prevent sunlight from reaching your crops.
On the other hand, consider erecting shade cloth to protect plants from overheating if you’re growing outdoor cannabis seeds in a hot climate. Remember to keep the humidity under control by ensuring there are enough gaps for air to get in.
When choosing a spot for your marijuana crops, make sure there’s enough space to erect a trellis net. This type of structure becomes important when plants start flowering as it supports the weight of the heavy buds.
If you live in an area that regularly experiences strong storms, we suggest raising your outdoor weed seeds in pots. Using containers for your plants allows you to bring them undercover for extra protection.
The size of your pot will also determine how large your plants can grow. It’s possible to raise photoperiodic crops in small containers, moving them to bigger ones towards the end of their vegging phase.
As for outdoor autoflower seeds , it’s best to plant them in large pots to prevent you from damaging the roots. Most experienced cultivators opt for containers over five gallons as they ensure crops can reach their full potential.
Best outdoor cannabis seeds for cultivation
When it comes to choosing the best outdoor marijuana seeds for high yields, there are various things you need to consider.
The most important aspect to take into account is the type of climate in your area. Cultivators who live in colder environments will find the most success with indica strains. These types of cannabis crops thrive in lower temperatures and can resist strong winds.
If you live in a hot, humid environment, you’re better off selecting high yield outdoor seeds dominated by sativa genetics. These marijuana plants are less likely to be affected by moisture-related issues like mold and mildew.
It’s also important to ensure your selected cannabis strain isn’t susceptible to pests or pathogens. That way, you eliminate having to use any insecticides that may affect the taste of your buds.
Another factor to consider when choosing outdoor marijuana seeds is how long they take to grow. Most photoperiodic crops take around 26–30 weeks to germinate and produce a harvest.
Picking an autoflower strain cuts this average time in half, awarding yields in around 12–14 weeks. Although this cannabis variety generally doesn’t offer very heavy yields, you’re able to grow multiple crops throughout the year.
Top 8 cannabis seeds to grow outdoors
Our wide selection of amazing outdoor weed seeds can sometimes make it hard to decide which ones to buy. That’s why we’ve put together a list of the eight most popular cannabis cultivars in our store to help you along.
The iconic Big Bud strain has always promised effortless yields ever since it entered the market in the 80s. This fast version is no different, making these high yield outdoor seeds perfect for beginners.
Although these marijuana crops only take 6–8 weeks to flower, they still rely on light to enter this blooming stage. It’s best to raise this indica-dominant strain in a Mediterranean climate, resulting in outdoor yields of around 25–26 oz./plant.
Consuming these 14–17% THC buds triggers a powerful, relaxed sensation in your mind and body. It’s best to save the marijuana from these outdoor seeds for evening sessions as they tend to leave you feeling sedated.
If you’re looking for a mellow smoke that’ll keep you relaxed throughout the day, Critical Mass is the one for you. This indica-dominant strain only has 5–8% THC and 8–12% CBD, making it a popular option amongst medicinal users.
Anyone can grow these high yield outdoor seeds , even if it’s your first time cultivating cannabis. Crops have a flowering time of 8–9 weeks and produce 21–26 oz./plant by October, depending on your climate.
These attractive buds emit a sweet fragrance once mature, filling the room and your mouth with fruity goodness. Once consumed, any tension or discomfort dissipates, and you’re left feeling calm yet alert.
Take your afternoons to the next level with Chronic outdoor weed seeds and the balanced effects their buds offer. Unlike most indica-dominant hybrids, these succulent nugs give you a boost of energy before slowly relaxing your body.
It owes its potent 23% THC content and thick trichome coating to its legendary parent White Widow. After 8–10 weeks of flowering, these dazzling crops net a massive harvest of 30–32oz./plant.
Anyone can grow these high yield outdoor seeds from home, including beginners. Lighting these buds up releases a strong earthy musk into the air, followed by a wave of spice as you take a puff.
When it comes to late-night snacks, it’s hard to compete with the Black Widow strain and its 24–28% THC content. These indica-dominant outdoor cannabis seeds are also responsible for creating gorgeous crops and flowers that’ll win any beauty contest.
If this cultivar’s fruit and pine fragrance doesn’t seduce your senses, its powerful effects sure will. These buds pack a punch, delivering a sedating blow to every inch of your body, sending you swiftly to sleep.
Raising these female seeds outdoors is an exciting process that anyone can experience, regardless of their skill. Once crops begin to flower, you’ll need to wait 8–10 weeks before harvesting your buds and bagging 11–14 oz./plant.
There’s nothing like starting your day on a high note with the 19–23% THC buds from the White Widow strain. These iconic outdoor seeds are the result of mixing an Indian and Brazilian landrace and hold multiple cannabis awards.
It’s easy to tell these flowers apart from any other weed strains as their thick snowy coat gives them away. While many fans use these buds for an energy boost, they also tend to enhance your creative side.
Beginners love growing these outdoor marijuana seeds as they’re able to resist mold and pests, ensuring a quality harvest. Crops have a flowering time of 7–8 weeks, after which they produce yields of up to 25 oz./plant.
Power Plant is the queen of wake and bake strains, with its ability to improve your mood as you get out of bed. These high yield outdoor seeds entered the market after breeders managed to stabilize an African sativa landrace.
It only takes a few seconds before you start feeling the stimulating effects of these 13–21% THC buds. Expect a sudden cerebral rush to send you into a world of bliss as the sweet licorice flavors dance on your tongue.
These outdoor cannabis seeds are perfect for first-time cultivators as their resilient nature makes them maintenance-free. After 8–9 weeks of flowering, you’re rewarded with a hefty yield measuring around 28 oz./plant.
Kick stress to the curb with the Master Kush strain and its ability to lift your spirits while locking you to the couch. These outdoor weed seeds come from mixing Hindu Kush with Skunk genetics to create an indica masterpiece.
Flowers release a strong earthy aroma that tastes like refreshing pine every time you have a toke. It’s best to keep your dose of these tantalizing buds low, as their 20–24% THC content can knock out the most seasoned smokers.
Cultivating these outdoor cannabis seeds isn’t difficult, making them a solid choice for beginner growers. Crops take 8–10 weeks to flower, producing a respectable harvest of around 4–7 oz./plant.
Super Silver Haze
Shake those morning blues with the Super Silver Haze strain and its stimulating buds with 15–19% THC. The powerful cerebral effects take hold within seconds of consuming these nugs, sending your mind on a euphoric journey.
These high yield outdoor seeds are almost maintenance-free, making them a suitable option for beginners. After flowering for 9–10 weeks, cultivators can expect to harvest 21–25 oz./plant from this sativa-dominant hybrid.
Lighting up these raw buds releases a thick plume of smoke that gives off their signature citrus and metallic smell. Each puff fills your mouth with a sweet flavor, followed by a spicy aftertaste.
Buy outdoor marijuana seeds
The best place to buy high yield outdoor seeds is right here, from our convenient online store. We have a wide variety of quality cultivars with stabilized genetics that promise a 99% germination rate.
Once you’ve found your favorite cannabis strain, use one of the various secure payment methods to complete your order. There is even the option to track your outdoor marijuana seeds straight to your door.
Our discreet delivery procedure also means you don’t have to worry about any disgruntled neighbors giving you a hard time. Plus, if you need any additional assistance, our customer support lines are open 24/7.
Frequently asked questions about outdoor seeds
Not sure if high yield outdoor seeds are the right choice for your growing setup? Here are answers to a few frequently asked questions to put your mind at ease.
What are outdoor seeds?
Outdoor seeds refer to cannabis strains that flourish in natural conditions, making them the perfect option for your garden. These types of crops can resist harmful pests and pathogens, producing generous yields come rain or shine.
Although you’re restricted to cultivating during the warmer months, this type of growing technique is cheaper than indoor setups. They’re also a fantastic way for beginners to learn before attempting a more challenging strain.
What is the highest yielding outdoor strain?
While there are various high yield outdoor seeds , nothing can compete with the output of the Blue Headband feminized strain. This balanced hybrid has become increasingly popular in the marijuana market due to its gigantic harvests measuring 35–141 oz./plant.
Its powerful 20% THC buds trigger a powerful cerebral buzz that clears your mind and improves your mood. After a while, its signature relaxing qualities swoop in, releasing stress from your body as you melt over the sofa.
What is the best outdoor autoflowering strain?
Fans of outdoor seeds looking for high-yielding autoflower strains will adore Northern Lights x Mazar . These crops don’t rely on light to start blooming, meaning they’ll produce harvests measuring 16–21 oz./plant year-round.
Anyone can grow this autoflower strain from home without too much fuss. They don’t require any training and can resist harmful pests and pathogens. Plus, these high yield outdoor seeds only take 12–14 weeks to offer a succulent harvest.
Cannabis Seeds for Outdoor growing
Outdoor cultivation is the simplest method of growing cannabis, as nature will do most of the hard work. For successful outdoor cannabis growing, it is important to select the right strains for the climate. Choosing the right seeds can make or break a grow! It is difficult to achieve good results with a cannabis strain such as Silver Haze in a cold climate with few hours of sunlight.
How hard is it to grow cannabis outside?
Outdoor cultivation is the simplest method of growing cannabis, as nature will do most of the hard work. For successful outdoor cannabis growing, it is important to select the right strains for the climate. Choosing the right seeds can make or break a grow! It is difficult to achieve good results with a cannabis strain such as Silver Haze in a cold climate with few hours of sunlight. However, the same strain will thrive if growing outdoors in a sunny, Mediterranean kind of environment. To help you work out which seeds are best for you, we’ve collected all the types of cannabis suitable for growing outside in cooler climates in this Outdoor Cannabis Seeds section.
How do I know which outdoor cannabis seeds are best for my climate?
The wide range of cannabis varieties from Sensi Seeds and the White Label Seed Company have been categorised by the type of environment they require to produce optimum results. This information is shown as icons next to the seed strain description (and on the seed packaging), enabling you to see at a glance whether a specific cannabis variety is recommended as Outdoor Cannabis Seeds for growing outside, and in which climates. More detailed information is found in the seed descriptions.
This system of labelling enables growers to see at a glance whether a specific strain is suitable for outdoor growing in their climate, or whether it will require an indoor or greenhouse environment in order to grow, thrive and fulfil its genetic potential. You can also use the filters in this section to view seeds according to indica / sativa balance, predicted height, yield, price, and (most importantly in this section) climate.
In order to find out which seeds are the best ones to grow in an outdoor garden, simply check the climate zones on the map on this page. Whether you have a cool, wet, northern environment with short summers, a warm and more European type climate with average summers, or are blessed with Mediterranean to tropical conditions and hot summers that are many months long, in this section you will be able to find the right seeds to plant and grow in your area.
What do I need to grow cannabis outdoors?
Cannabis can thrive in almost any type of soil, as long as each plant gets enough water and enough light, and the seeds are appropriate for the outdoor climate. If you only have a balcony or yard rather than a garden, using large pots filled with earth will give a very satisfying and simple yield.
There are also plenty of autoflowering and feminized seeds in this category, so even growing just one plant at a time can still give you a reliable crop without the risk of it turning out to be a male. Having to weed out the males from the ‘marijuana’ is not a problem thanks to the advances that have been made in breeding since the early days, when the only method of procuring your own was farming it naturally!
Outdoor cannabis cultivation can be ideal for beginners
One of the great advantages of soil growing is that the nutrient requirements of the plants are more easily met that when using artificial mediums like rockwool, and even other natural substrates such as coconut fibre. It can be beneficial to add some fertilizer or use natural compost to really give your harvest an extra boost, but using good earth will often allow the roots to simply draw up the levels of nutrition and trace elements that they require. Along with this capacity, the pH level of soil seldom requires adjusting, and this makes for a much simpler gardening experience that novices and people with limited time or energy can greatly benefit from. All the bud with hardly any of the effort!
Whether you are an experienced cultivator with many years of successful plant care behind you or an enthusiastic amateur who is just learning the difference between indica and sativa, there is a plant type in this category to suit both your level of expertise and your particular climate. When deciding to grow cannabis outdoors, many gardeners in the colder and wetter parts of the world are justifiably concerned about problems such as frost and fungus. To combat these worries, we have various hybrids that can resist the latter and have a short enough flowering time that the former does not get the chance to affect them. For those people lucky enough to enjoy plentiful sunlight throughout a long hot summer, everything from skunk to kush will grow very well indeed. Choosing the right variety of plant is the most essential decision for ensuring a pleasing and rewarding crop of buds with a high thc level without having to grow indoors.