Alpha 21 Feminized Seeds (AlphaFem Seeds)

AlphaFem Seeds USA
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 2oz/ft² (600g/m²) in indoor setups. Outdoors, yields depend on climate conditions as much as the love and care you’re willing to provide and may reach 1.3-1.76lb (600-800g) 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.

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.

Grow Tips

Despite the strong Sativa influence, these plants don’t grow taller than 4ft (120cm), 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!

Customer Ratings
4,9
Based on 43 ratings
  • 5
    40 rating
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    3 rating
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    0 rating
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  • avatar
    Chef Dabbs V
    5
    31 January 2025
    31 January 2025
    • General impressions

      Dude. This is the king of wake-up calls. I made pancakes under Alpha 21 and tasted the colors. The taste is lemony with a hint of pine. I call it "Liquid Sunshine."

    0
  • avatar
    Stoney Rick
    5
    28 January 2025
    28 January 2025
    • General impressions

      I grew three of these babies outdoors. No mold, no fuss. They thrived. A citrusy, diesel scent that turns heads. And the buzz? Mmmmm… Clean, focused, no paranoia. I love it for early mornings.

    0
  • avatar
    Hitman
    5
    27 January 2025
    27 January 2025
    • General impressions

      The packaging was discreet, no fuss, just the way I like it.

    0
  • avatar
    Professor
    5
    13 January 2025
    13 January 2025
    • General impressions

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

    0
  • avatar
    Sultan
    5
    10 January 2025
    10 January 2025
    • General impressions

      Pleasant and mild effect, but I especially enjoyed the taste :) Very fragrant buds. Tested while still ripening, no bitterness, the taste is pleasant.

    0
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