Alpha 21 Feminized Seeds (AlphaFem Seeds)

AlphaFem Seeds
Feminized
Photoperiod

Description

Alpha 21 Strain Info

The breeder of this strain, who's come a long way from humble trimmer to the founder of his own seedbank, created this Sativa-dominant marvel with ease of cultivation and product potency in mind. The legendary OG family serves as the backbone of this strain, which explains Alpha 21’s exceptional therapeutic potential and huge demand in the medical community.

Genetics

Alpha 21 is a hybrid resulting from crossing the flagship Totally Alpha OG with a pure Sativa line of Haze IBL, complemented by the addition of the Afghani landrace Zalla. The result is a plant whose clear Sativa dominance isn’t obvious in either its compact size or short flowering time, nor in its body-focused effects.

Flowering Time

The flowering time of Alpha 21 can be as short as 49 days (7 weeks) of 12/12 and rarely takes more than 63 days, so growers looking for fast-finishing cultivars can definitely find a phenotype of a record-breaking speed here.

Yields

Despite some variance in maturation times, the strain consistently produces up to 600 g/m² (2 oz/ft²) in indoor setups. Outdoors, yields depend on climate conditions as much as the love and care you’re willing to provide and may reach 600-800 g (1.3-1.76 lb) per plant.

Effects

Expect a potent full-body relaxation that will take care of anything that might have bothered you before, be it an aching body or nagging anxieties after a busy and stressful day. Alpha 21 is the perfect way to purge all that, stop caring about anything, and eventually fall asleep.

For Sleep
Medicinal
Happy

Medical Properties

The symptom relief generously offered by Alpha 21 includes all the usual suspects like stress, insomnia, anxiety, and of course, pain of any origin.

THC and CBD Levels

Alpha 21 is among the most potent strains bred by AlphaFem Seeds, as its THC content can go as high as 30%, with CBD levels clocking in at under 2%. This intimidating cannabinoid composition is one for long-time habitual smokers, while newbies should tread lightly and have no more than one shallow toke before venturing further.

Smell and Taste

Alpha 21's terpene profile offers spicy and woody notes of caryophyllene in its aroma, complemented by a pleasant sweetness upon the exhale, with delightful hints of citrus and earthiness from limonene and myrcene.

Wood
Sweet
Spice

Grow Tips

Despite the strong Sativa influence, these plants don’t grow taller than 120 cm (4 ft), which is a very convenient feature for limited spaces. However, even in this case, we recommend using ScrOG to train Alpha 21 so that its yields can reach their full potential.

  • Implement training to keep every top at the same distance from the light source.
  • Use trellising to provide support for heavy colas.
  • Ensure adequate ventilation to mitigate the risk of mold.

Alpha 21 Seeds

Get a record-breaking harvest with Alpha 21 feminized seeds, brought to you by Herbies! Guaranteed germination, 20+ years of experience, and top-rated customer service – that's our promise. Buy with confidence and do it today!

delivery Shipping: from 2 days
Reviews
4.9
43 reviews
  • Albert
    14 November 2024
    14 November 2024
    • General impressions

      The plants were resilient and easy to maintain, making this an ideal strain for first-timers like me. Highly recommend!

    0
  • Dime
    2 November 2024
    2 November 2024
    • Advantages
      Super strain, grew outdoors, 1,1 kilo from 3 plants
    • Disadvantages
      No
    • General impressions

      Great, works just as sativa should. Shout out to Herbies!

    1
  • Evelyn
    2 November 2024
    2 November 2024
    • Advantages
      dense buds
    • Disadvantages
      they require careful humidity control to avoid mold in later stages, but otherwise, this is a top-tier strain for growers who want weight and potency.
    • General impressions

      Good

    0
  • Anonymous
    30 October 2024
    30 October 2024
    • Advantages
      It’s one of those cases where the potency isn’t overstated at all, tripping balls almost every time, can’t get used to it
    • Disadvantages
      no
    • General impressions

      excellent variety

    1
  • Rick
    20 October 2024
    20 October 2024
    • Advantages
      The buds are dense and well-formed, vibrant green hues with orange pistils, generously covered with trichomes. It’s visually appealing and feels nice to the touch with a pleasant stickiness when you break it
    • General impressions

      Overall, Alpha 21 is a good hybrid with a pleasant flavor and a balanced effect profile

    0
  • Drop in the ocean
    19 October 2024
    19 October 2024
    • Advantages
      Really simple cultivation, indoor at least
    • Disadvantages
      Effect is more like a strong indica than sativa
    • General impressions

      No problem at all. Was growing as a sativa strain and it worked just fine – the plants liked everything. Lights, fairly abundant watering and feeding. Sativa-like in structure and not tall. In terms of taste and aromatic qualities it’s 100% pure Kush. Got even a little upset cause I didn’t expect such strong relaxation and even sleepiness.

    2
  • Liam
    17 October 2024
    17 October 2024
    • Advantages
      I’ve grown many strains over the years, but Alpha 21 blew me away. The plants were vigorous, resistant to pests, and produced some of the densest, frostiest buds I’ve seen.
    • General impressions

      The high is intense—a perfect mix of euphoria and relaxation. The citrusy, earthy aroma is addictive. Definitely a keeper in my rotation!

    0
  • Eleanor Riggs (Medical Cannabis Patient & Educator)
    15 October 2024
    15 October 2024
    • General impressions

      I’ve been using Alpha 21 primarily for daytime relief from fatigue and low motivation related to fibromyalgia. The effect is clean, uplifting, and emotionally bright — without triggering anxiety. I was impressed by how smoothly the high settles in and how functional I remain. I also cultivated the strain myself: it responds well to LST and doesn't require aggressive feeding. Moderate stretch, manageable height. The end result was a highly aromatic flower with impressive trichome coverage and excellent cure potential. A truly therapeutic cultivar with both recreational and clinical appeal.

    0
  • Jacob
    14 October 2024
    14 October 2024
    • General impressions

      high-quality buds and a solid yield

    0
  • Niko
    5 October 2024
    5 October 2024
    • Advantages
      I really enjoyed growing Alpha 21! Compact. Tasty. Effective.
    • Disadvantages
      Good strain, no downsides.
    • General impressions

      The process was smooth, and the screen advised by you helped spread the branches out for more light. I was surprised by how many buds I got in the end!

    1
  • Melody
    29 September 2024
    29 September 2024
    • Advantages
      Price, good genetics, prompt shipping
    • Disadvantages
      More bonus seeds would be nice
    • General impressions

      Hi all, I’ve recently purchased this strain. Was selecting between Blue Gelato from Barney’s as I’ve cultivated quite some of theirs and this variety. Decided on Alpha 21 as I love to grow new varieties from different seedbanks. It popped within a day in water with peroxide, planted it into coco, is growing great, I’m observing its progress

    4
  • Alex
    2 September 2024
    2 September 2024
    • Advantages
      Deep Relaxation and Stress Relief
    • General impressions

      If you’re looking for something to fully unwind and knock out with, this strain is a must-try!

    0
  • Alan
    15 August 2024
    15 August 2024
    • Advantages
      Grew Alpha 21 outdoors, and the results were insane—easily over 700 g per plant with some pushing 800 g. It thrives in warm climates, but even in cooler conditions, it performed well with proper care.
    • General impressions

      he high is absolutely crushing

    0
Customer Ratings
43 ratings
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