Amsterdam Seed Supply – Auto Flowering Seeds – Find the best Auto Flowering seeds at the best prices – Buy Auto Flowering Marijuana seeds Buy marijuana seeds online from the best USA seed bank. Autoflower, feminized, and regular cannabis seeds for sale. Germination guarantee, fast tracked-delivery Autoflower seeds with fast USA delivery. Autoflowers produce plants that flower in 2-4 weeks with minimal effort from your side. Here you’ll find high-quality autoflower cannabis seeds that are already feminized.
Amsterdam Seed Supply offers a large range of award-winning ‘Auto-flowering’ cannabis strains. When a marijuana plant is “Auto-flowering”, it will flower automatically when it reaches a given maturity, regardless of photoperiod. Auto-flowering cannabis seeds are in almost all cases crossings (hybrids) between Cannabis ruderalis and Cannabis indica and/or Cannabis sativa, these Ruderalis strains come from the far east, where there are limited light hours that force the plant into flowering as quickly as possible to thrive and reproduce. As said before, they start to flower automatically, this in comparison to the ‘classic’ Cannabis sativa and Cannabis indica which need a reduction of sun hours a day in order to flower.
Choose Amsterdam’s Legendary AutoFlowering Seeds
Autoflowering cannabis seeds are also well suited to be grown outdoors in regions that do not have many hours of sunlight per year. Places like the northern and southern hemispheres are great to grow autoflowering cannabis seeds since the limited amount of light will not affect the growth and flower cycle of the plant, nor will it get stressed into flowering less or interrupting the flower cycle altogether. This means that all our autoflowering cannabis seeds will make for great balcony plants that can be planted in the spring and harvested by the end of the summer.
Cannabis Ruderalis, the AutoFlowering Genetic
Autoflowering marijuana seeds with Cannabis Ruderalis heritage simply start to flower when they reach a certain age. These strains originate from Ruderalis genetics that includes strains like “Low Rider” (which you might spot in the genetic make-up of many autoflowering cannabis seeds) combined with the normal Indica and Sativa strains and are native from extreme regions of the world like Siberia. Most autoflowering cannabis seeds start to flower around week 3 and although autoflowering cannabis seeds have already been on the market for a while, in the last few years, the popularity of autoflowering seeds has skyrocketed thanks to the ease of growing them. It is the go-to plant of choice for up and coming growers that are looking to experiment with growing cannabis as a hobby.
It is possible that one of the few downsides to growing Autoflowering seeds is the little yield that they produce, compared to a feminized strain that can have its growth controlled to make it larger, autoflowering cannabis seeds need to be grown as quickly as possible since they will immediately begin to flower and in the worst-case scenario the plant will be so small that it would have only one cola.
Autoflowering Marijuana Seeds Usa
Tony was super helpful and friendly so awesome !! Hooked me up with lots of seeds!so excited to start my journey as a grower and I couldnt have done it without him ❤️❤️❤️
Great staff, deals, and quality product. One stop shop for all seeds/plants! Recommend everybody to check out!
Hey 4/20 all I can say is that it was very impressive what the Retail store manager James and his staff put on there. To make your experience awesome. I had a very good time. Door prizes give away to free Jamba juice served to all customers. They a food truck with fantastic array of dishes food. They had a big tent for customers to keep the sunshine off of you while you waited to come in it was indeed a hot day. The crowd was insane. Really great time a really great experience.. Once again this is Sunny side what more can I say. James is the man he get my salute thank you sir for a awesome great time my brother keep up the great work. My peeps will be back. Love you guys.
Excellent costomer service. Had 2 seeds out of 12 not germinate. Called and Dante replaced them with no problem. Good freebies everytime I go in. All around great place to get seeds
How To Choose Weed Seeds?
There are three broad classifications of Pot strains to choose from: auto-flowering pot seeds, Feminized weed seeds & Regular marijuana seeds.
Autoflowering pot seeds – don’t need a light shift to start flowering. If you are new to cannabis growing, then Autoflower cannabis strains are your pick. They grow into medium plants, fit for an indoor grow space, have good yields, and get ready for harvests fast. We only sell female autoflower weed seeds.
Feminized weed seeds. Our feminized marijuana seeds are guaranteed to germinate into female cannabis plants with dense buds.
Regular marijuana seeds – regular seeds come in both and female genders. Therefore, every batch of seeds you buy has a 50:50 chance of germinating into male or female marijuana plants.
If growing pot for buds for consumption, choose either the autoflower cannabis seeds or feminized cannabis seeds.
Choose cannabis seeds based on genetics
For genetics, you can choose between Sativa seeds and Indica Seeds or from the hybrids with varying proportions of Sativa and Indica.
Sativas are known for their sedative and medical properties
Indicas are known for the higher THC content – thus giving a more potent high.
Choose weed seeds based on THC/CBD content
Different marijuana strains have differing THC/CBD content.
If you want hard-hitting weed, then go for weed seeds with high THC content.
For weed that doesn’t overpower, low THC and high CBD pot are preferable.
This easy to grow autoflowering strain yields 350 – 400g indoors and is extremely potent.
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!
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.
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.
Auto Critical 2.0 has next level moisture, disease, and pest resistance!
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.
A Dutch coffee shop menu staple that has been enhanced with healthful CBD.
Experience intense relaxation and calm while luxuriating in the sweet vanilla scent.
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.
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.
This plant is very compact (60-80 cm) and easy to grow both indoors and outdoors.
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!
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.
The high is very uplifting, energizing, and happy although the user may get a sense of “brain-fog” when consumed in high levels.
Named after the Cannabis activist Jack Herer, this strain will also keep you active! Very uplifting high prompting creativity and daydreaming.
This prized weed is now in easy-to-grow autoflowering form.
A refreshing bouquet of eucalyptus and pine fills the air with this automatic flowering, medium THC Indica dominant beauty.
Say goodbye to stress, anxiety, and body tensions.
Get lit and liberated just like the Statue of Liberty with this sour flower!
Better than the classics. Enjoy sweet tropical goodness while lounging on cloud nine.
Allow your mind to expand with creative insights, while also relieving chronic pains and fatigue.
When smoking it, expect to me met with an uplifting and racy head high.
Who needs superpowers to fly high and calm the storm when Auto Super Skunk is around?
Full body high starting with an uplifting sense or euphoria.
Your no-fail daily grind companion. Guaranteed to help you accomplish all your tasks.
As an Indica dominant, get ready for supreme relaxation with this powerful strain.
Auto White Widow is an Indica dominant automatic flowering strain that delivers a moderate yield of creativity inducing flowers high in THC.
This is a rare but also a very strong strain, giving users a warm fuzzy feeling behind the eyes that soon transcends to a full-body relaxation.
The golden ticket that grants access to the land of euphoria.
A giant among the world’s most famous marijuana strains, but in a compact form.
An essential for mind and body rejuvenation
As beautiful and serene as a literal purple sunset
Auto AK-47 provides a stress-free growing experience with positive and relaxing effects.
An oldie but goodie, now in easy-to-grow autoflowering form.
This strain will start you out feeling focused and motivated with an energy lift, and leaves you feeling introspective and relaxed in a calm haze.
Very potent THC levels that affect the user in both mental and physical realms with sativa-like creativity and euphoria.
Large, bulky buds have a pale-green, sometimes purple color and offer the user tranquilizing effects – helping with muscle pain and melting away your stress.
This high THC Auto-flowering tropical scented strain delivers pain relief in 8 to 9 weeks.
An after-dinner treat for berry lovers and cheese connoisseurs.
A perfect blend for butter recipes if you’re the type to wake and bake and make cheesecake!
The perfect union of delicious flavor and outstanding relaxation. Incredibly easy to grow as well.
Blueberry and lemon, what a deliciously mouthwatering combination! Another great 50/50 Hybrid option that presents high yields of sticky resinous buds.
A mighty relaxing weed to help you unwind at the end of a long and stressful day.
Automatically fine-tune those discernment skills with some critical relaxation to the mind and body.
The effects from Auto Cheese CBD are as delightful as aged cheddar cheese served in the rose garden. Relax, darlings.
A very potent body-stone will get you horizontal in high doses. Helpful to treat stress, anxiety.
An increasingly popular mash-up of classic strains Afghani and Skunk #1.
Bright and resinous buds will offer an active and creative high for an Indica. Effects will trail off into relaxed euphoria without becoming sedated. Excellent yields to be expected from this slightly taller plant.
Heavily relaxing effects that soothe the body and mind
A dense plant with bright buds and dark and broad Indica leaves. This strain offers relaxation with the mental euphoria brought on by the sativa genetics.
Rumor has it, a top-secret Mississippi lab engineered the genetics for G13, and now the super strain is easier to grow with the addition of auto flowering Ruderalis genetics!
Despite the 55% Indica dominance, effects are very cerebral: happy, euphoric, focused, and creative.
Uplifting and cheerful strain that has virtually no burn-out.
Extremely large and resinous buds take a little longer to develop, but the high THC levels will leave your brain buzzing for hours.
The aroma of these plants will fill your senses with glee, while the resinous and plentiful buds will bring a grin to your face.
The high, like the smell, is very zesty and uplifting. Great companion for creative ventures.
Being bred for 9 generations this strain Is sturdy and can survive harsh or cold climates very well.
A magnum opus of a strain – high-yielding and easygoing.
Few Indicas have achieved cult status as fast as Mazar. Grow this auto version to find out why.
High THC and elevated euphoria bloom from this sea-green creature!
A full body buzz that will leave you feeling nicely medicated.
Just when you thought it can’t get any better, here comes the best version of Northern Lights.
You get all the perks of the Northern Lights strain with the speed and forgiving nature of the blueberry genetics
The plant itself is very easy to care for and you will enjoy the tell-tale deep purple buds that develop.
Auto White Widow x Crystal Meth Fem is a high THC, Indica dominant, resinous strain that induces euphoria and smells like lemons.
Expect to see buds so covered in white crystal that they appear like a snow-capped mountain range!
The effects on the mind are focused, alert, and happy, while your body will soon become deeply relaxed.
One hit, and you will forget all your troubles and discomforts.
Two remarkable Indicas in one – and in an easy-to-grow, fast-yielding form.
What are autoflowering marijuana seeds?
Autoflowering seeds are your ticket to harvests in half the time. These marijuana strains are small, sturdy, fast-flowering, and non-photoperiod . They automatically bloom after several weeks of vegging, finishing their entire life cycle in around ten weeks.
Autos are a favorite among impatient stoners and growers in cold areas. They let you taste test new cultivars after a short waiting period. You can grow two batches per season and cultivate stretchy strains even with limited vertical space. What’s not to love?
Drop the waiting game and fill your mason jars with cannabinoid-rich buds fast. As a bonus, our auto cultivars are already feminized . There’s no need to worry about complicated light setups or males in your garden. Order seeds from i49 and set yourself up for gardening success.
How fast do autoflowering seeds grow?
Fast development is the number one selling point of autoflowering cannabis seeds . Expect your crops to run the entire seed-to-harvest course in short ten weeks . Some sativa strains need more, while indica plants tend to be ripe and ready in as early as seven or eight weeks.
If you’re an outdoor cultivator, autoflowering seeds let you plant two batches of cannabis per season. Alternatively, start late and still collect colas in August or September. There’s no reason to worry about frost and bad weather ruining your harvest.
Indoor growers can maintain summer temperatures all year long. Over a year, these beauties leave you with more buds than you’d get from a photoperiod garden. Mix things up with strains with varying environmental requirements or keep an always-fresh stash of your go-to.
Why do cannabis growers like autoflower seeds?
Autoflowering seeds are ideal for dedicated cultivators of all levels. More people are catching on to the trend and growing non-photoperiod. Why is that so?
The main appeal stands in the name— these beauties flower automatically . You’re never left wondering when to flip the lights or whether your outdoor crops need lamp supplementation.
The non-photoperiod heritage of autos offers further benefits. Ruderalis genetics produces short and squat marijuana plants . There’s no concern about space restrictions for towering sativa or especially aggressive indica strains.
This ruderalis genome originated in central Russia, developing resistance to adverse weather and common diseases . Standard gardening practices get autoflowering marijuana to produce vigorously in response to your TLC.
Like all cannabis varieties, autoflower seeds come with pros and cons. Let’s explore both sides to help you determine whether this is the best option for you.
What are the benefits of autoflowering seeds?
Autos are the top choice of growers with some experience . These cannabis gardeners collect harvests sooner and try new strains before dedicating six months to them. Cool-climate outdoor cultivars and those who always have a fresh stash also go auto.
If you’re reluctant about jumping on the bandwagon, consider the following benefits of auto flowering strains .
- Lightning-fast flowering and harvest
Autos don’t count on long-lasting sunshine and warm temperatures, courtesy of their Russian genetics. Evolution made the growing cycle much shorter , helping crops make the most of their short growing season.
Hybrids combined with ruderalis maintain this growth pattern. Their preferences are strain-dependent, but they develop rapidly indoors and outdoors.
Most autos are harvest-ready in ten weeks. Some cultivars take even less to produce cannabinoid-rich buds.
Photoperiod cannabis goes through life cycles depending on the amount of light outside. Shortening days are its sign to enter flowering, and it’s only then when the bud production commences. Indoors, it’s on you to mimic these conditions and induce ripening.
There’s no worry about light signals with autos.
These crops grow under any light schedule , moving from vegging to flowering. It’s good to keep light exposure high to encourage the bud site, bud, and cannabinoid development. Still, messing up the program doesn’t mean plant stress and hermaphroditism.
Autoflowering seed -grown crops stretch much less than their photoperiod counterparts. There’s more to this advantage than taking up less space in your grow room.
The stealthy stature makes your growing operation much more discreet . We at i49 would never suggest illegal growing, but growers have various reasons for wanting to keep their grow a secret.
Small auto crops blend with other plants in your backyard and don’t stretch to the skies. You avoid nasty looks from landlords and neighbors.
Cannabis produces all cannabinoids, but the market is overflowing with high-THC strains. As a result, high-CBD varieties remain limited unless you shop for strains popular for their CBD production.
This tendency is great for high-tolerance recreational stoners. Medical marijuana users and people looking to tame their high with a non-psychoactive substance find themselves in a bind.
That’s where autoflower seeds come into play. Crops with these genomes are weaker in THC, but they still amp up cannabinoid production. An average non-photoperiod flower is higher in CBD , making the high less aggressive and more therapeutic.
The ruderalis genome originated in barren Russian lands, and crops still developed! They could only do so with excellent resistance to the cold, diseases, and pests . This quality translates to ruderalis crosses too.
It’s much harder to make a mistake with autoflowering seeds . Of course, specific climate and environmental requirements depend on its family tree.
You should always provide optimal conditions, but these marijuana plants remain patient towards rookie errors.
Do autoflowering seeds have any cons?
Plants modified by ruderalis bring numerous benefits, but not all cultivators choose autos. In particular, absolute beginners tend to face issues with these strains . Their short lifecycle doesn’t leave plenty of room to fix any errors you may have made along the way.
Commercial growers and other high harvest-seekers also go photoperiod more often. Let’s discuss why you might skip this variety and choose an alternative.
Autos are smaller in size and able to carry fewer flowers , reducing the size of your overall yield. Of course, the exact figure is different for each strain. You can find quick high-yielders, but in general, you’ll need fewer mason jars for your harvest.
Low yields aren’t unavoidable, though. The right conditions, strains, and growing techniques optimize the harvest potential.
Plant stress stunts development and reduces output. That risk is always possible, but there’s more time to fix the burn or deficiency with long-flowering photoperiods.
It’s a different story if you mess things up with autos. Their short life cycle makes them extra vulnerable to stress . Be careful with lights, nutrients, trimming, and transplanting to avoid damaging your harvests.
Crops increase in potency with time spent in the sun. As a result, those from autoflowering seeds stand slightly lower on the cannabinoid scale.
You can get the best of both worlds by increasing light exposure during their life cycle. This approach requires higher energy expenditure, though.
Powerful lamps that run all day long help the buds fatten and produce cannabinoids. Luckily, the seed-to-harvest period is short enough that you’ll only have to pay higher utility bills for a month or two.
What yield can I expect from autoflowers?
Compared to photoperiods, autos offer small harvests. Autoflowering variants of high-yielding strains produce average harvests.
There’s massive variance between different strains , though. Some autoflower seed -grown crops might yield 3 ounces, while others produce over 24 ounces per plant. If you’re striving for harvest bulk, start with quality genetics.
Get high-yield autoflower seeds in the USA and start there. Combine good genetics with good gardening practices. You can increase the quantity and quality of your harvest and achieve it in under three months.
What gardening practices suit autos best, then? How to take your yields to double digits? Let’s explore two key factors here.
Autoflowering cannabis seeds and the best light for their growing
Cannabis is a light-hungry plant, and that requirement doubles with autos. Your crops don’t rely on the light schedule to start flowering, but they enjoy basking in the sun just the same . Since you won’t have to change your light schedule, which one works best for these crops?
Cultivators keep the lamps on their autos running for 18 or 25 hours a day. The former gives your autoflowering marijuana some downtime, while the latter prompts continual growth. There’s no consensus on which works better, so choose according to what other growers have found success with as a start.
Once you have your schedule down, it’s time to consider equipment. Power savings are a bonus here, but any grow lamp type will do. If you use LEDs, switch the spectrum from blue in vegging to red in flowering.
Our final tip has to do with exposure rather than light itself. Trimming, topping, side lamps, and the Sea of Green technique maximize the amount of light for each bud site. These methods help all flowers fatten, even those on lower levels.
What kind of soil should I buy for autoflower seeds?
You can grow your autoflower seeds in the soil and hydroponic setups. The latter promotes harvest size, but it requires some experience and additional equipment on your end. It’s better to stick to traditional methods and focus on providing optimal conditions if you’re a beginner. How do you do that?
Start by ensuring there are plenty of nutrients in whichever medium you choose. Deficiencies in the short life cycle are bad news, reducing the quantity and quality of the output. Organic soil is an ideal low-maintenance option that guarantees root health and tasty, sticky buds.
Choose an airy medium. Compact soil can constrict the roots , stunting the growth of autoflowering cannabis . You can easily increase aeration by adding coco coir, perlite, or biochar to your medium.
The cultivation environment determines how much your crop eats and stretches. Cannabis can grow in most soil types, but why not go the extra mile? Providing quality goes a long way in improving your harvests.
Buy autoflowering cannabis seeds: Expert recommendations
The scope of autoflowering seeds at your disposal is massive. You can now get most superstar and obscure strains as fast-flowering non-photoperiods. This variety is exciting, but it can be hard to pinpoint the best place to start.
No more googling ‘best seeds near me’—i49 is here. We sell quality autofems that cater to everybody, from party-going sativa lovers to introspective indica enthusiasts. Our dispensary guarantees germination, worldwide shipping, and fast delivery.
The seed library brings new options to indecisive rookies and veterans stuck in a rut. We understand that choosing can be an overwhelming task, though. That’s why we rounded up our top sellers in an easy-to-browse selection below.
Check out our favorite autoflowering strains . We’ll run through our bundles first, then move to individual top picks.
Autoflower seed bundles
Our seed bundles are the perfect choice for growers looking to mix things up . Our packs always share a theme, such as growing style or expected cannabinoid levels. These variety packs help you step outside the box and add an element of surprise to your cultivation journey.
You’ll find the following auto flower seed bundles on i49:
- The Al Fresco bundle is all about natural, outdoor growing. All three strains are autoflowering and feminized, making cultivation a breeze. We have you covered with indica, sativa, and hybrid cultivars.
- The Blast-off bundle puts power first! It combines three THC-rich autoflowering cannabis strains into one bag. You get a blend of the most potent family trees to suit your days and nights.
- The Indoor bundle ’s name says it all. This pack consists of three autoflower seed types perfect for indoor growers. Hint—there’s a classic VIP here, as well as a niche strain guaranteed to become your number one.
- The Roadrunner bundle takes the top quality of autoflowering seeds and amplifies it! You get three fast-flowering strains that further speed up the seed-to-harvest period with this pack. These autofem cultivars are a joy to grow, and all promise a good time.
- The Wellbeing bundle is a counterpart to our blast-off pack, focusing on high-CBD strains. These three legends deliver CBD-rich versions of classic strains with magnified therapeutic value.
- The Patriot bundle is an all-American cannabis seed pack that showcases three marijuana legends. These most popular cultivars don’t need any introduction, repping the best of the 420 industry.
Autoflower cannabis seeds
If bundles aren’t your jam, pick one strain and simply run with it. This option is better for rookies and people still unsure about autos. You’re free to give your undivided attention to one cannabis beauty and all it has to offer.
These bestsellers on i49 are the perfect place to start exploring autoflowering cannabis seeds :
is a clear favorite of cannabis enthusiasts everywhere, a true THC powerhouse, and the ideal morning smoke. This diesel-smelling sativa stress-buster ripens in 9 weeks and produces 21 oz./m² of buds when provided with optimal indoor conditions.
is another heavy-hitter with incredible THC levels. This hybrid takes nine weeks to ripen, emanating a complex perfume of strawberries and fuel. Its smooth one-two punch delivers the best of sativa and indica. You get 19 oz./m² of bud indoors.
is as tasty as it sounds! These saccharine buds promise a rush that doesn’t leave you crashing. Instead, sativa energy melts into indica relaxation. Grow these autoflowering seeds indoors for 17 ounces of dessert-tier flowers per square meter.
looks so good that you almost won’t want to collect its sweet colas. Flowering in short eight weeks, it adorns your garden with purple streaks and scents of sweet citrus. Its 14 oz./m² of buds bring powerful relaxation to your entire system.
might sound intimidating, but it’s smoke provides a balanced experience. Buds drip in cannabinoids, inducing mind-and-body effects through their skunky, herbal smoke. You gather 21 ounces of flowers per square meter in indoor setups. is a powerful sativa-dominant blend ideal for daytime use. The sweet smoke delivers moderate THC doses, perfect for all-level tokers. Yields are around 10 oz./m ² , more than enough to brighten your days all winter long.
Visit i49 and buy autoflower seeds for a cultivation journey that never stops giving.