When you think of AMS XTRM, you think of stability, amazing yields and excellent quality. The buds are covered with nice sticky resin. After rolling your AMS weed into a perfect joint, just light it up and experience the sensation of all the amazing flavors. Sounds pretty amazing doesn’t it? Check out Amsterdam Marijuana Seeds newest AMS strain, which is part of the haze family.



AMS XTRM strain isn’t something we would recommend for absolute beginner growers, it is a pretty easy strain to cultivate – so, good news, you don’t have to be an expert! Being a sativa-dominant hybrid, you can expect lengthy leaves and fat buds smothered in a lovely, frosty layer of resin. Your harvest will come full circle in around ten weeks, and it will be worth it so don’t get impatient and harvest too early! How worth it, you ask? Well, if growing inside, your yield from these seeds will be about 400 grams, and if you were to grow outside then it will almost double! What are you waiting for?

AMS XTRM seeds also produce strains that won’t break your heart should the weather conditions become adverse. Her stability enables her withstand strong winds, strong sunlight, and of course, optimum growth inhibiting factors such as caterpillars and molds. We like seeing her as the beauty that living organisms cannot call a home.


AMS Xtrm is made by us, for you. Not to toot our own horn or anything, but we definitely deserve a pat on the back for this one. This strain boasts fantastic yields that are sure to be top quality every single harvest.

AMS XTRM seeds give plants with up to 750gms per square meter, and this is an assurance that our creation is typically what you cannot afford to miss in your pot farm. We surely feel that this is like our agape love for you, if at all enormous yields are anything to go by.


Despite the fact that this strain is great for getting the creative juices flowing, it is also amazing at relieving pain and other symptoms of a variety of ailments. Xtrm is super relaxing, and so is ideal for treating pain related to physical illnesses as well as pain that isn’t so physical. That’s right, Xtrm has the potential to help with anxiety, ADHD, ADD and more because it is incredibly calming. It has also been said to help aid those who suffer from insomnia and other sleep related problems.

Being 80% Sativa, we can’t be wrong to say that this is your ultimate go-to if you would like to start your day high, focused, and with a sense of mental clarity. If mood swings describe your attitude, especially during the morning hours, then we can also agree that you will be on point if you take your favorite hit of this Sativa-dominated pot.


AMS XTRM is one of the most stable strains to grow, so if you are looking for your first strain, this is the one. You will be able to breed this feminized strain without any problems. It has long-fingered leaves and the dense, sweet bud formations appear light green due to the frosty resin coating. AMS seed needs 9 to 11 weeks before you can harvest. Don’t harvest too soon, because the desired sticky resin will cover the buds in the last 3 weeks.

Tip: while growing, keep in mind that our strain absorbs nutrients from the soil very fast, so make sure to provide it with our marijuana fertilizer.

If you can, also be sure to supplement the XTRM seeds after germination with coffee grounds before the application of the artificial marijuana fertilizer. This will undeniably help you in ensuring that your ganja plant will always have sufficient nutrients should it grapple the artificial fertilizer faster than anticipated.


Just as this strain probably isn’t for beginner growers, it isn’t really for beginner smokers either. In fact, Xtrm packs a powerful punch with its THC level of 23%! Don’t worry though, this isn’t the kind of weed that will have you glued to the couch. Instead, Xtrm will induce masses of creativity and euphoria.

And, no! It would be best if you don’t get discouraged at this point if you are an absolute beginner. We also have a plentitude of marijuana strains with THC levels averaging between 5 and 15%. For instance, think of our equally fantastic Super Skunk Auto.


There are some kinds of weed that aren’t exactly pleasant to smoke, but luckily this isn’t one of them. Xtrm tastes exotic, with spicy notes and citrus flavours that’ll leave you wanting more. It really is a beautiful smoke, so why not try your hand at growing some today?


As a Sativa hybrid strain, it has a very high THC level. You can grow this plant indoor and outdoor. If you prefer indoor growing, the harvest can add up to 400 grams per square meter. Outdoors it almost doubles: 750 grams of buds on the same surface. The best period to harvest it is in the early fall.

We mostly advise our growers to order their weed seeds well in advance to avoid uncertainties associated with delayed shipping times or in case of rare occurrences such as damaged seeds during shipping. You need to sort the time factor in such a way that should there be any inconvenience and replacements have to get done, then that should follow right before summer.


Your creativity will be sparkling after smoking our latest strain XTRM. And besides that, this strain will boost your energy day after day. Order your precious cannabis seeds online and enjoy growing a stable and beautiful strain. You’ll be rewarded with the strong and long-lasting high of your own weed.

Secondly, these ganja plants are truly beautiful, and you will have killed two birds with a single stone – your visitors will undeniably praise you for what they can ultimately see in your grass garden, and secondly, you will proud that you will have done all the work yourself – tending your pot strain from germination to harvest.


The characteristics of this strain are perfect for a happy afternoon or night of smoking, socializing with friends and an ultimate way to relax. If you are looking to grow some medical strains, AMS XTRM is the one for you. Just give these seeds a shot and find out what it does for you. If you suffer from anxiety, ADD, ADHD, XTRM is just perfect. Grow your own calming medicine with AMS seeds.


Master breeder Relaximo from Amsterdam Marijuana Seeds is the mastermind behind AMS XTRM. As an experienced grower, Relaximo is always looking to improve the best strains. AMS seed is the Dutch answer to Haze and Jack Herer. AMS weed is better, stronger and more potent, at least, that’s what Relaximo’s experience is. Buy his AMS strain now and discover it for yourself.


AMS is one of the best seed banks in the world. We are located in the celebrated marijuana capital of the world and our hometown is world renowned for its weed. Most popular are AK47, White Widow and Amnesia Trance. Many of our strains won prizes, such as the Cannabis Cup. By selective breeding for decades our growers succeeded to optimize the genetics of marijuana seeds. So there’s no doubt you have to try AMS XTRM.

Thankfully, you can also benefit from our 10% off after you buy your packet of XTRM seeds using Bitcoin. The adoption of cryptocurrency by AMS is to a greater extent tailored explicitly to make our customer save, while also stay comfortably knowing that their transactions are anonymous, and that no one can ever access their financial information. How sweet!


You will never get bored of smoking AMS weeds; every joint is a delight. AMS XTRM has a taste of fresh and spicy lemon and a sweet, buttery aroma. You can smoke this weed during daytime, it will not make you sleepy or couch locked. This XTRM AMS seed is easy to grow. Do you need some help? Check out our grow guide for advice.


If you have more specific questions about our AMS seeds, please do not hesitate to contact us. AMS is here to save the day! Your day. Because we want you to have a successful crop of AMS weed. And we want you to be a happy customer. Whatever your question is: if we can help you, we sure will. Mail us or fill out the contact form. Want to read up on growing your first batch of seeds? Check our Grow Guide.


“Shiny happy people holding hands, shiny happy people laughing.” The way R.E.M. pictured people in a shiny world, that’s the way we want to see you! Satisfied, shiny, happy, together. In the end, that is our goal for our tot customers to feel after growing AMS seeds into a bud you can smoke together. That is the reason the whole process, from ordering seeds up to getting high, is important to us.


We have mentioned it before: if there is anything we can do to make the whole process easier, better or more fun for you: let us know and we will take action. Many customers already experienced that, as you can read on the independent review website Kiyoh. Feel free to write about how we served you. We would love to see your tips and suggestions.


Do you yearn for AMS XTRM like Smeagle does to the Ring? Order your seeds online now at AMS. We guarantee delivery of these highly unique beans. No matter where you live, how far away from Amsterdam it may be, AMS weed is coming to you with our worldwide delivery. Your seeds will be packaged discretely in a non suspicious way, just like when you receive your normal mail. Our special envelopes do not contain any marijuana-related content.


Before you order your AMS strain, do not forget to check out the rest of our assortment. Did you know AMS offers over 100 different weed seeds? Whatever your all-time favorite is, we’ve got it. And most likely your future number one as well: you only have to try before you discover it. Are you having difficulties choosing other weed seeds? Have a look at our marijuana seeds table to help you decide.


We are law-abiding, and hopefully you are. If your country legalizes the cultivation of pot seeds, then pleasure is all yours to note that we are borderless and deliver all the way from Europe to USA in blanc packaging materials. No one needs to know what’s getting delivered your way, and it’s not our duty to showcase the goodies for you, our valued customer.

Additional information



THC Level

Up to 26%





Yield Outdoor

Up to 750 grams / 26.5 ounces per sq meter

Height Indoor

Up to 170 cm / 66.9 inch

Flowering Time Indoor

9 – 11 weeks

Grow Difficulty



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