Autoflowering Seeds

Amnesia XXL Autoflowering


Sativa-like potency, XXL yield and autoflowering speed

Amnesia XXL Autoflowering is a cannabis seed the team of Dinafem Seeds feels extremely proud of. Why? Because this 3rd generation marijuana strain will scupper all prejudices normally held about autoflowering genetics. She’s amazingly productive and her THC content and taste are exactly what we’d expect from such a legendary lineage. Read more >
  • Dominance: Sativa

  • THC: High

  • Outdoors:

    • 100-250 g/plant

    • 0.75-1.7 m

    • Early April / Late October

  • Indoors:

    • 450-500 g/m2

    • 75-90 days

  • Original Amnesia
  • x
  • Original Amnesia Auto

Perfect for: Outdoors, in regions with continental climates where the lack of space or the presence of nearby neighbours is not a problem and obtaining big yields is a priority. Highly suitable for commercial purposes.

Born from an Original Amnesia and an Original Amnesia Autoflowering, Amnesia XXL Autoflowering is a clearly Sativa-dominant plant that will bring joy to all those who love going through highly creative psychedelic experiences accompanied by typically Haze flavours.


Amnesia XXL Autoflowering cannabis seeds turn into Sativa-shaped plants, i.e. slim, sturdy and elongated plants with large internodal spacing and elegant leaves with thin, jagged leaflets. Amnesia XXL Autoflowering may grow up to 1.70 m, which could become a real issue when cultivating indoors. In order to control her vertical growth, we recommend tying up the top of the plant –the highest cola- with a thread to a lower part, such as the tent's bars. This will force the plant to bend a bit. Don’t forget you’re dealing with a living being, so treat her well, without breaking any stalks or stressing her out.


Amnesia XXL Autoflowering is a heavy yielder that scuppers all prejudices generally held about autoflowering genetics, and, all this, honouring her legendary lineage. She produces typically Sativa airy, elongated, fox tail-shaped buds that are rather resistant to mould and botrytis.

Aromas and flavours

Amnesia XXL Autoflowering showcases an intense and delicious scent of Haze, lemon, incense and pine.


As one would expect given her Sativa dominance, Amnesia XXL Autoflowering delivers a purely cerebral and psychedelic effect of long duration. Inexperienced users shouldn’t trifle with her high THC content, which makes her more suitable for daytime use or creativity-requiring activities rather than for bedtime.


In true Sativa spirit, Amnesia XXL Autoflowering is a very sturdy plant that withstands extreme humidity conditions thanks to her large internodal spacing and her thin leaves that improve perspiration. And, on top of that, she’s got all the advantages of autoflowering genetics. Both traits, her resistance to moisture and her fast life cycle, make Amnesia XXL Autoflowering highly suitable for growing in rainy climates where the hot-dry season is not especially long. With her, the likelihood of being affected by botrytis, mould or fungi is substantially reduced.

Best results are obtained with pots of at least 10 L or even of 20 L if you’ve got enough room available. If working with soil, it is paramount you make sure it is well aerated and roots can take up all the nutrients. For that, you’ll have to add 1/3 of coco coir to the substrate.

As for the best irrigation regime, as good autoflowering, Amnesia XXL Autoflowering needs to be irrigated more frequently than a photoperiod strain, but try to make sure the soil doesn’t end up full of standing water.

If you’re cultivating indoors, the most suitable light schedule for your Amnesia XXL Autoflowering would be 20 h of light and 4 hours of darkness during her entire life cycle. Remember that autoflowering genetics don’t depend on the photoperiod and so flower automatically without shifting the light schedule. However, the more hours of light they receive, and the more intense they are, the healthier they’ll grow and the more bountiful their crops will be. That’s why, for outdoors, we recommend doing so during the warmest months of the year.

Concerning the fertilization rates, Amnesia XXL Autoflowering will need more nutrients than other plants, because of her Sativa status. Giving accurate EC and pH figures is very difficult because they are subject to many conditions. However, what we do recommend is providing a slightly higher fertilization than with other strains and varying it little by little until you get the right amount for your plant.

Characteristics of
Amnesia XXL Autoflowering cannabis seeds

CrossOriginal Amnesia x Original Amnesia Auto
Comprehensive life cycle75-90 days
Indoor yield450-500 g/m2
Outdoor harvest timeEarly April / Late October
Outdoor yield100-250 g/plant
Outdoor height0.75-1.7 m

*Cannabinoid content (THC, CBD…) may vary depending on external factors such as the growth medium, the grower’s experience, the growing technique (SOG, SCROG…), the environmental conditions and genetic variation.

What do our customers think?

152 customer reviews
4.91 out of 5 (based on 152 ratings)

All reviews about Amnesia XXL Autoflowering:

  1. GroweR

    5 out of 5
    Chek This Out... 65 Days.
  2. Gift seed was useless.

    1 out of 5
    Got this as a gift seed last year when growing auto cbd og kush from dinafem. planted this year, seed sprouted just fine but plant is week and started to flower at 2 inches tall. :( growing other seeds from different breeders and dinafem "purple orange cbd" and there doing great. strong, tall, lush, green, bushy. weird part is I'm using the same setup, same lights same soil same everything. bad seed, not impressed, wish I didn't waist my time with it.
  3. quality

    5 out of 5

    Dinafem is my go to! I’ve never had a miss and the quality of their products always come through! I can’t wait to try out the critical+ 2.0 Here is a photo of the super silver haze in week 8

  4. Amnesia xxl auto

    5 out of 5
    I have always been a fan of dinafem seeds for years so of course they were my first choice for this run , I picked up a pack of amnesia xxl and off to the races , she has been a pleasure to grow , extremely easy going plant , very vigorous growth all through veg and flower has been a continuos push of buds stacking up , she lives the nutes , dutch nutrients and big bud have both completemented this beauty and I have been able to push her as high as 1800ppm with zero burn or negative reaction, she is a beast and smells of a powerful lemon pinesol dank The buds are super dull and covered in resin Shes has a few weeks left but definitely has a place in my heart and will be ordering more when the next round is finished she will be a staple in my grow room for some time to come Great job dinafem for always bringing the
  5. Mr

    5 out of 5
    Excellent autoflower a little bit stretchy , but responded well to l.s.t . Quality flower nearly as nice as photopiriod original amnesia. 3 seeds 2 different phenotypes that's the only down side.
  6. almost ready! 70 days...

    5 out of 5
    My Baby Amnesia Xxl Autoflower 70 days
  7. Amnesia xxl auto

    5 out of 5
    Minha primeira auto a mais top que tive até hoje, sem duvidas quero muitas dessas. Facil de cultivar com bom rendimento super saborosa
  8. amnesia Xxl auto

    5 out of 5
    very serious #not for beginners#heavy stoned#like small pots outside#super tasty (particular
  9. Amnesia Haze XxL

    5 out of 5
    First time growing this strain ...first time with Autos..She seems to be doing great! Almost 1 month old Healthy and growing well..TLo organic Soil Super teas!keep it green 420!
  10. Amnesia haze XXL auto

    5 out of 5
    38 days from seed sprouted in 3” coco jiffy block then into this pot don’t no size used some canna coco and mykos fed them on really low ec always, using ghe micro and bloom only 4ml micro 8ml bloom 3 ml cal mag start ec at 0.8 strait out the tap ph 6.0 until 3rd set of leaves then start nutes work ec up slowly or you’ll burn them less is more very easy to grow I’ve had it in with the blues in dwc under 2x 600w but 300w vipaspectrum led would be good this auto was purely for fun and expirement tall Sativa would also go well from seed into 9 litre air pot then just leave it I only used this small pot as it’s all I had to put the lanky lady in she’s gorgeous smells lovely deffo recommended remember Sativa genetic are taller then indica so you would would some nice room for her to grow can’t wait to smoke her
  11. Lemon Monster Yield Auto

    5 out of 5
    Lemon taste, easy to grow, wonderful fat buds, beautiful smell and aroma. I tried more autos from Dinafem, but Amnesia XXL Auto and OG Auto are my totally top strains, both because of arome, nice look, health strong plants, fat buds result and fresh lemony taste.
  12. Surprising

    5 out of 5
    This is my favorite daytime lady. I smoke this girl and i'm in the mood to clean my tent and the whole apartment. Great head high, the plant is pretty and crystal coated. Foxtailing like hell., easy to grow. Recommended!
  13. growing

    5 out of 5

    Hi, I'm a newbie and I want to have big yields with this train outdoors.does any one grow it outdoors and how many grams per plant does get?

    1. 5 out of 5

      Hi, in optimal conditions, you could obtain 200-250g/plant (dried flowers). Regards

  14. Excellent genetics

    5 out of 5
    I am a novice but this strain was forgiving of my mistakes and delivered me a good yeald, thanks ti its eccellent
  15. Very fast growing speed

    5 out of 5
    Only 28 days from she get out of the ground. Amazing branches and veins !!! She grow very fast. 70 W Sodium light and 2 side pannels led for full spectrum cover . Everything is BIG, steams, leafs ...i hope and the buds be the same. Thanks Dinafem !!!
  16. M r

    5 out of 5
    Great growing speed
  17. Seeds

    5 out of 5
    The seeds are the best ever they have really good buds very good to smoke
  18. Mr

    4 out of 5
    They were big and full, but I didn't do them justice. Have a lot of very nice hash though!
  19. Auto Amnesia xxl

    5 out of 5
    One of the greatest auto i ever grown
  20. Boom weed great smell, taste, yeild

    5 out of 5
    Was onto a winner with this one finished within 90 days with hard colas of great tasting and smelling weed with big yeilds, it was a pleasure to grow can't wait to do the rest of the auto range
  21. Fresh

    5 out of 5
    Quickly, vigorous and easy to grow , perfectly for Nobels growers ,
  22. Dank weed great high good yeild

    5 out of 5
    Grows quite talk but and fat long buds that stank of goodness and great yield, always got a reliable dinafem in the mix rfor reliability
  23. Massive Yield

    5 out of 5
    Over 6 Ounces fantastic smoke
  24. The Tall Ones

    5 out of 5
    wOw they really grow tall :) Will plant again for sure :)
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