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Marijuana Seeds
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White Widow XTRM ® Autoflower Seeds

Kiyoh 8.2/10 from 8,372 shop reviews (Sep 30, 2026) · Read reviews

Number of seeds
From €50.00

Free tracked shipping worldwide · Optional insurance at checkout

  • Sun-kissed genetics: most of our seeds are bred outdoors, under the full spectrum of natural sunlight
  • Trusted seed bank since 1996 · about us
  • Free discreet worldwide shipping · costs and tracking
  • Delivered within 21 business days in Europe, 31 elsewhere, from shipment · FAQ
  • Lost insured parcels are reshipped or refunded · conditions
  • Growing problem? Tell us within 90 days of shipment · FAQ
White Widow XTRM ® Autoflower Seeds
€50.00
THC
Up to 23%
Indoor yield
Up to 400 g/m²
Flowering
Fast (6-10 weeks)
Effect
Creative, Happy, Psychedelic
Difficulty
Easy
Flavor
Earthy, Peppery, Pungent, Woody

Specifications

Seed TypeHybrid
THC LevelHigh THC (Up to 23%)
YieldHigh
Yield (indoor)Up to 400 grams / 14.1 ounces per sq meter
Indica / Sativa60% / 40%
Flowering TimeFast (6-10 weeks)
Height (indoor)Up to 90 cm / 35.4 inch
Plant SizeAverage
ClimateContinental, Mediterranean, Temperate, Tropical, Warm Dry
Grow DifficultyEasy
EffectsCreative, Happy, Psychedelic
FlavorEarthy, Peppery, Pungent, Woody

About White Widow XTRM ® Autoflower Seeds

Amsterdam Finest!

White Widow XTRM. This autoflower is among the strongest weed in the world. Born and bred right here in our beloved Amsterdam. Although many countries claim to have created White Widow, we can state that here in Amsterdam; White Widow first saw the light of a lamp. This weed has won more Cannabis Cups than any other strain before.

There is a reason behind the higher prices of the White Widow XTRM autoflower in most Dutch cannabis dispensaries. In addition to her excellent characteristics, she is the epitome of recreational and medicinal effects.

Here at AMS, it is somewhat daunting to distinguish our White Widow extreme seeds from the original White Widow as the strain seedlings begin to grow. That is what we mean when we say that we like tailoring each of our strains to be a replica of the original while maintaining the desired characteristics.

What are the effects of White Widow XTRM ® Autoflower?

A must for anyone who considers themselves a smoker! It is a super potent Indica-dominant hybrid with a powerful and uplifting high. Its buds can be completely white due to their high THC content; they contain up to 23%.

White Widow XTRM is perfect for a psychedelic effect; it will send you to the Andromeda galaxy and beyond. In short, it is the perfect plant for a stoner who wants the best.

Many of our customers reach for this Indica-dominant strain in the evening, when they're looking to fully unwind before bed. Recreational users, are you there? Bid goodbye to stressors with the White Widow extreme autoflower weed today.

What does White Widow XTRM autoflower taste like?

When smoked, this herb has an earthy, spicy, sweet flavor with a pine aroma.

Strain Characteristics

White Widow XTRM autoflower is a powerful plant that can be grown anywhere. Perfect for novice growers. It is among the strongest strains in the world. Mold and caterpillars tend to avoid attacking this variety due to their robust nature. It is fibrous enough to repel most cannabis predators, and its strength extends to the fact that strong winds rarely adversely affect the plant. As is the case with her mother, the classic but highly regarded White Widow, she maintains her physical attributes, including her prominent white Trichomes.

Yield

The buds are huge, so be prepared to harvest up to 400 Grams (14 Ounces) per 1 m2 (11 ft2) when grown indoors and up to 600 Grams (21 Ounces) per 1 m2 (11 ft2) outdoors. As you probably already know, autoflower plants will enter the flower phase at a defined point in their growth instead of being influenced by daylight hours. This undoubtedly makes them much more predictable when it comes to harvesting.

Height

White Widow XTRM autoflower grows compact; like all autoflowers, the mix with ruderalis affects the height. But not to worry, she does get you plenty high!

For the novice growers

We would like to motivate you to start, believe us; Anyone can grow marijuana seeds!

If you are new to this exciting world, count on us. We are fans and connoisseurs who have dedicated our lives to growing, raising, and spreading seeds around the world because we believe that everyone has the right to experience the benefits of this sacred plant and the best of Mother Nature.

We also like to spread our knowledge, like our grow guide, and we do this for free!

Contact us, with any questions you might have. We would love to share our knowledge and enthusiasm with you.

Join the AMS family and receive our awesome newsletter full of proposals, tips, promotions, and much more so that you never run out of new ideas and can enjoy all the effects these beauties of nature offer us. Below you will find the link.

Product reviews

4.9/5Based on 11 reviews

  • Bob

    Excellent buds!

    This is my 3rd order from AMS and they continue to impress me every time! Seeds arrive, grow and smoke as promised! Will never use anyone else for my seed sourcing. I absolutely love AMS!

  • BUD

    White widow extreme

    Took a couple days to germinate. Now about 2 inches tall and going strong. Can't wait to see the end results. Thank you AMS for your support.

  • Jacko

    my favourite ams strains I recommend to every xtrm grower

    Just a happy review I had to write after growing and smoking this stuff

  • Thomas

    White widow, green crack, blue dream.

    Wonderful in every way. I've been dealing with AMS for over 20 years. Ive used other seed banks. I love these guys over any other. Germination is practically 100% and everything grows well. I love the fruit at the end. I recommend AMS to everyone

  • From

    Still popping

    Ordered these seeds on a buy 10 get 10 in 2019 and seeds still popping and producing.