Alpha 21 Feminized Seeds (AlphaFem Seeds)

AlphaFem Seeds
Feminized
Photoperiod
USA

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
61 reviews
  • Hen123
    7 December 2024
    7 December 2024
    • General impressions

      Strong genetics, but a bit picky in vegetation; mine was sensitive to overfeeding, even at half strength. However, once fed well, it took off and the buds were incredible. Just needs a little monitoring at first.

    0
  • Eric
    7 December 2024
    7 December 2024
    • General impressions

      What a delightful experience! Easy to manage in the garden, the end result allowed me to relax and keep my mind clear.

    0
  • Foam
    7 December 2024
    7 December 2024
    • Advantages
      30% THC, yield
    • Disadvantages
      I don't know
    • General impressions

      I want to try this 30%, I will experience it and share my impressions with my friends

    0
  • Aaron
    4 December 2024
    4 December 2024
    • Advantages
      Ease of growing. A lot of THC, guaranteed to hit hard, no matter your tolerance
    • Disadvantages
      None so far
    • General impressions

      Seeds are excellent, and the resin is of high THC – simply a monster. Genetics did a great job! Have grown nothing comparable in potency. All good. Undemanding hybrid. Flowers in 8 weeks

    0
  • Lan
    3 December 2024
    3 December 2024
    • General impressions

      Smooth process from start to finish. The germination rate was 100% and the plants grew quickly without any major issues.

    0
  • Paul
    1 December 2024
    1 December 2024
    • Advantages
      Nice terpene profile
    • General impressions

      Super easy to grow, excellent structure and super dense buds. The high is powerful: it hits hard while keeping you functional. I would definitely use it again!

    0
  • Cole
    26 November 2024
    26 November 2024
    • Advantages
      Tasty and powerful. Not difficult to grow.
    • General impressions

      Bought to try because I didn't know this new seed bank. Everything is fine, I will definitely try something else from them. The description is true to reality or very close to the truth.

    0
  • OG Scope
    24 November 2024
    24 November 2024
    • General impressions

      I ordered 10 seeds, only 7 sprouted, but I received a replacement. And I chose other seeds. But these seven... oh my God, what bliss!

    0
  • Jaguar
    23 November 2024
    23 November 2024
    • General impressions

      A taste of lemon and pine, a feeling of happiness. Grown in a small tent, after light defoliation, it responded very well. Perfect for beginners!

    0
  • Michael
    19 November 2024
    19 November 2024
    • Advantages
      One of the best things I've ever grown! She forgave me all my mistakes and droughts :) Still, she made me really happy with the yield and effect – 5/5
    • General impressions

      Superb strain!

    2
  • Albert
    14 November 2024
    14 November 2024
    • General impressions

      The plants were resilient and easy to care for, making them ideal for beginners like myself. Highly recommended!

    0
  • Tyler
    11 November 2024
    11 November 2024
    • General impressions

      This one is fire. Grown in coco coir under LEDs, I took LST like a champ. It smells like lemon, like death, in the best sense of the word.

    0
  • Isa
    6 November 2024
    6 November 2024
    • General impressions

      Having used and grown cannabis for over 15 years, I can say that Alpha 21 stands out in several ways. From a grower's perspective, it's a well-bred strain: a solid structure, not prone to pests or mold, and it responds perfectly to LST and defoliation. The effect is very cerebral yet grounding, making it suitable for both medical and recreational use. What impressed me most, however, was its terpene profile—rich in limonene and myrcene, from what I could tell—which gives it a delicious tangy, piney flavor. I've already cloned it for a new experiment.

    0
  • Dime
    2 November 2024
    2 November 2024
    • Advantages
      Super strain, grown outdoors, 1.1 kilos from 3 plants
    • Disadvantages
      Non
    • General impressions

      Awesome, works exactly like a sativa should. Big thanks to Herbies!

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

      GOOD

    0
  • Tomás
    2 November 2024
    2 November 2024
    • General impressions

      Very satisfied with this strain. The buds were dense, the trichomes were like snow. The smell is strong, with citrus notes. Grown at 27°C and 50% relative humidity, it gave excellent results indoors. Thank you!

    0
  • Anonymous
    30 October 2024
    30 October 2024
    • Advantages
      This is the case when the power is not at all overestimated, you stumble almost every time, you can't get used to it
    • Disadvantages
      Non
    • General impressions

      excellent variety

    1
  • Robin
    23 October 2024
    23 October 2024
    • General impressions

      Excellent effect and incredible taste, but flowering took a little longer than expected. Over 10 weeks. I may have missed something, but overall I'm satisfied.

    0
  • Rick
    20 October 2024
    20 October 2024
    • Advantages
      The buds are dense and well-formed, with vibrant green hues accentuated by orange pistils and a generous coating of trichomes. It's visually appealing and tactile, with a pleasant sticky sensation when you pull it apart.
    • General impressions

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

    0
  • Drop in the ocean
    19 October 2024
    19 October 2024
    • Advantages
      Really simple growing, indoors at least
    • Disadvantages
      The effect is more like a strong indica than a sativa
    • General impressions

      No problem. I grew it as a sativa strain and it worked very well—the plants loved everything. Fairly abundant light, watering, and fertilization. Sativa-like structure and not tall. In terms of taste and aromatic qualities, it's 100% pure Kush. I was even a little upset because I didn't expect such a strong relaxation and even drowsiness.

    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, pest-resistant, and produced some of the densest, most frost-resistant buds I've ever seen.
    • General impressions

      The effect is intense, a perfect blend of euphoria and relaxation. Its lemony, earthy aroma is addictive. A must-have in my collection!

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

      I use Alpha 21 primarily to relieve daytime fatigue and low motivation related to fibromyalgia. The effect is pure, uplifting, and emotionally bright, without triggering anxiety. I was impressed by the smooth onset of the effect and my functional maintenance. I've also grown this strain myself: it responds well to LST and doesn't require aggressive fertilization. Its stretch is moderate and its height is manageable. The end result is a very aromatic flower, with impressive trichome coverage and excellent maturation potential. A truly therapeutic cultivar, both recreational and clinical.

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

      high quality buds and solid yield

    0
  • JayCee420
    14 October 2024
    14 October 2024
    • General impressions

      I rolled it in a RAW and almost forgot my name 💀 Clean smoke, smooth taste, but the punch? Devastating (in a good way). Buy it. Trust me.

    0
  • Linds
    10 October 2024
    10 October 2024
    • General impressions

      I loved it! Sweet and lemony, with a hint of spice. It makes me feel calm yet alert—great for painting or writing. I grew it outdoors and the plant was absolutely beautiful!

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

      The process went smoothly and the screen you recommended helped me spread out the branches for more light. I was surprised at how many buds I ended up with!

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

      Hello everyone, I recently purchased this strain. I was torn between Barney's Blue Gelato, as I've grown quite a few, and this strain. I decided on Alpha 21, as I love growing new strains from different seed banks. It germinated in one day in water with peroxide, I planted it in coco, it's growing well, I'm watching its progress

    4
  • Mike (25 years grower)
    11 September 2024
    11 September 2024
    • General impressions

      This is a solid strain. Robust stems, good internodal spacing. Training techniques (LST and topping) mastered brilliantly. High resin production. Its terpene profile is lemony with earthy undertones. Keep without hesitation.

    0
  • Alex
    2 September 2024
    2 September 2024
    • Advantages
      Deep relaxation and stress relief
    • General impressions

      If you're looking for something to completely relax and escape, this strain is a must-try!

    0
  • Sasha
    1 September 2024
    1 September 2024
    • General impressions

      Alpha 21 is like a gentle, smoky embrace. A gentle vibe, no anxiety, and a hint of euphoria. It's now my favorite evening smoke.

    0
Customer Ratings
61 ratings
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