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
43 reviews
  • Thumpz
    3 April 2025
    3 April 2025
    • General impressions

      This strain had me gigglin’ like a kid watchin’ cartoons. Real talk. Bright flavor, clean burn. Not too couchy, just right for chillin' with the crew. Ain’t had this much fun since high school

    0
  • BudLord
    1 April 2025
    1 April 2025
    • General impressions

      Alpha 21 is pure rocket fuel, fam. Grew tall, fat colas and smelled like citrus with that earthy punch. Smoked it before a hike - felt like I was flying. Definitely a go-to for active sessions.

    0
  • Sofia Khalid
    28 March 2025
    28 March 2025
    • General impressions

      From a medicinal standpoint, Alpha 21 works well for patients dealing with fatigue and mood imbalances. It’s uplifting without overstimulation. Easy to grow, even in smaller indoor setups. I used all the guides and tips from the blog on this site. Thank you!

    0
  • Gerald
    14 March 2025
    14 March 2025
    • General impressions

      The growth was steady, and they finished flowering right on schedule. The buds were dense, resinous, and smelled amazing! Definitely a great strain!

    0
  • Matthew
    4 March 2025
    4 March 2025
    • General impressions

      Perfect for a First-Time Grow! As a beginner, I was nervous about growing, but Alpha 21 made it so easy! Ordering from Herbies was smooth, and my package arrived discreetly and quickly (about 8 days). Every seed germinated with no issues, and the plants were surprisingly forgiving—I made a few rookie mistakes, but they still thrived.

    0
  • Brie000
    4 March 2025
    4 March 2025
    • General impressions

      It’s rare that a sativa-dominant strain doesn’t cause me anxiety but Alpha 21 is smooth sailing. Excellent energy boost without the crash. Bonus: it smells incredible while curing. A+.

    0
  • Sharon
    27 February 2025
    27 February 2025
    • Advantages
      I had an issue with my payment not going through, so I reached out to customer service. They responded within a few hours and walked me through the process. Once my order was confirmed, it shipped out quickly and arrived in under 10 days.
    • General impressions

      Super Fast Processing & Discreet Packaging

    0
  • Jade
    21 February 2025
    21 February 2025
    • General impressions

      Fast Shipping & Stress-Free Growing

    0
  • James
    10 February 2025
    10 February 2025
    • Advantages
      The buds were rock hard and covered in trichomes.
    • General impressions

      the smoke is smooth, and the high is uplifting but still relaxing.

    0
  • Glenn
    9 February 2025
    9 February 2025
    • General impressions

      They grew fast and strong, and I ended up with some frosty, dense buds. The smoke is smooth, and the effects are just right. I’ll definitely be buying again!

    0
  • Chef Dabbs V
    31 January 2025
    31 January 2025
    • General impressions

      Bruh. This is wake-n-bake royalty. I whipped up pancakes high on Alpha 21 and tasted colors. Flavor's lemony with a piney twist. I call it “Liquid Sunshine.”

    0
  • Stoney Rick
    28 January 2025
    28 January 2025
    • General impressions

      Grew three of these babies outdoor. No mold, no fuss. They THRIVED. Citrus diesel funk that turns heads. And the buzz? mmmmmm... Clean, focused, no paranoia. Love it for early mornings.

    0
  • Hitman
    27 January 2025
    27 January 2025
    • General impressions

      The packaging was discreet, no extra fuss, all as I like

    0
  • Professor
    13 January 2025
    13 January 2025
    • General impressions

      Structurally impressive genetics. Alpha 21 displayed consistent phenotypic expression, minimal intersex traits, and high trichome density. The high is stimulating, cerebral, and does not impair motor skills - ideal for focused tasks.

    0
  • Sultan
    10 January 2025
    10 January 2025
    • General impressions

      Nice mild effect but most of all I enjoyed its taste :) Very fragrant buds. Tried while still in curing – no bitterness, the taste is enjoyable

    0
  • Tasha
    7 January 2025
    7 January 2025
    • General impressions

      Alpha 21 makes me wanna clean the whole house and then paint a mural. It’s like espresso but with smiles. Seriously potent head high, but it plateaus nicely. Would grow again in a heartbeat!!!!!

    0
  • Nathan
    5 January 2025
    5 January 2025
    • General impressions

      I’ve tried growing before with mixed results, but Alpha 21 was my first true success! The ordering process was simple, and my seeds arrived in discreet packaging within a week. Every seed popped quickly, and the plants handled my beginner mistakes without issues.

    0
  • Heather
    4 January 2025
    4 January 2025
    • Advantages
      I got what I was looking for, fast delivery and easy payment methods
    • Disadvantages
      None so far
    • General impressions

      Will order again in your shop

    0
  • Balthazar
    3 January 2025
    3 January 2025
    • Advantages
      Decent THC content, yet might not be 30%. But hits really hard
    • General impressions

      Grows well and matches the description in terms of smell and effect. Only the yield is mid. And the height is average. But it flowers fast and blooms in a week. Will definitely find its admirer

    0
  • Marco C.
    31 December 2024
    31 December 2024
    • General impressions

      Solid yield, fast veg, and strong stretch during week 3 of flower. I defoliated twice, she handled it well. Smells like lemon cleaner and spice rack had a baby. High is zippy. Motivating AF.

    0
  • Real
    22 December 2024
    22 December 2024
    • Advantages
      still in veg
    • Disadvantages
      still in veg
    • General impressions

      so far all good, all 3 germinated within 2 days, now 2 weeks in veg

    0
  • Pharmacy
    16 December 2024
    16 December 2024
    • Advantages
      Good potent strain
    • Disadvantages
    • General impressions

      In general, you get what is promised. No complaints. Can recommend it and will try something else from them

    0
  • Michelle
    7 December 2024
    7 December 2024
    • Advantages
      The buds are dense and well-structured, coated in a thick layer of frosty trichomes. When smoked or vaped, the flavor is smooth and citrusy, with hints of pine and herbal notes on the exhale
    • General impressions

      Good resin production and the whole experience was satisfying for me

    0
  • Foam
    7 December 2024
    7 December 2024
    • Advantages
      30% THC, yield
    • Disadvantages
      Don’t know
    • General impressions

      Want to try this 30%, will experience it and share 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, great structure, and the buds are super dense. The high is powerful—hits hard but keeps you functional. Definitely running this again!

    0
  • Cole
    26 November 2024
    26 November 2024
    • Advantages
      Tasty and potent. Not hard to grow
    • General impressions

      Purchased to try as I wasn’t familiar with this new seedbank. All good, I’ll try something else from them for sure. The description is true to reality or very close to the truth

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

      Ordered 10 seeds, only 7 sprouted, but I got a replacement. And I chose a different seeds. But these seven... oh, my God, it's pure joy.

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


    • General impressions

      Great strain!

    2
Customer Ratings
43 ratings
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