AK 47
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AK 47

also known as AK, AK47

Sativa-dominantTHC-dominant
Indica 35 % Breeder dataSativa 65 %

AK-47 is a sativa-leaning hybrid of Colombian, Mexican, Thai and Afghan lines, crossed in 1992 by Simon of Serious Seeds.

Research as of 10/08/2026

How far AK-47 stretches after the onset of flowering varies widely in documented indoor grows: in 7 reports the plants grew in height by 167 to 533 %. The sativa-leaning hybrid was crossed in 1992 by Simon, owner and breeder of the Amsterdam seed company Serious Seeds, from Colombian, Mexican, Thai and Afghan lines. It became known among other things through Cup placings in the Sativa, Indica and Hybrid categories.

Cultivation:

The peak values of 400 and 533 % were seen in plants that went into flowering at 10 and 15 cm respectively. From a starting height of 20 to 40 cm they gained 167 to 200 %. Two phenotypes are described, a stretched, slower-flowering one with a sativa influence and a squat, faster-flowering one with an indica influence; several growers assigned their plants to the indica-like type.

Serious Seeds gives 53 to 63 days of flowering for the original version and an outdoor harvest from mid to late October. In 7 of 9 evaluated indoor reports flowering lasted 60 to 63 days; one run ended after 55 days and another after 70. The breeder puts the yield at 350 to 600 g/m², an older strain description based on breeder information at 350 to 500 g/m². One grower harvested 40 g per plant from 6-litre pots under 400 W, another 110 to 120 g per plant with 5 plants in 20-litre pots under 600 W. In a grow described on the breeder's site, regular plants reached 85 to 102 cm and feminized ones 65 to 85 cm.

According to Serious Seeds the flowers are compact, sparsely leafed and densely coated in resin. Grow reports describe the dried buds as hard and compact and rate the flower-to-leaf ratio as good to very good. The breeder warns of an exceptionally strong smell during flowering; Growers Choice also names the odor intensity of its AK47 as a characteristic of the plant.

Serious Seeds rates the strain as easy to grow, another strain description as moderately difficult. Several growers found the plants undemanding in terms of fertilizer and resistant to mold; powdery mildew resistance and good tolerance of early topping are also mentioned elsewhere. One grower supported the heavy side branches during flowering, another observed a tendency toward early flower formation. One report records disappointing harvests.

Genetics and Origin:

According to Serious Seeds, Simon tested thousands of plants from different lines before the F1 hybrid emerged; the breeder gives the ratio as 65 % sativa to 35 % indica. AK-47 was presented publicly in 1994, and in 1999 Simon stabilized the line further to improve uniformity and potency. One strain description differs and places the origins as early as the 1970s.

At the High Times Cannabis Cup, AK-47 took 2nd place among the sativas in 1999, 2nd place among the indicas in 2003 and 3rd place among the hybrids in 2011; a 3rd place in the Hydro category in 1996 and a 2nd place in the Bio category at the Highlife Cup in 2016 came in addition. Readers of High Times voted the strain Plant of the Year in 2003. Older accounts count 16 awards, while Serious Seeds itself now lists 27.

The breeder used AK-47 for its own crosses: White Russian came from AK-47 and a White Widow clone, Strawberry AK from an AK-47 mother and Bubble Gum, Serious Happiness from an AK-47 mother and a Warlock father. In Chronic, Simon crossed in AK-47 genetics in the late 1990s.

Versions from Different Breeders:

Serious Seeds offers the original version in regular and feminized form, plus the feminized Auto AK-47. For this autoflowering variant the breeder gives 70 to 80 days from germination to harvest, 40 to 75 g per plant indoors and a final height of 75 to 100 cm. Growers Choice and Bulk Seeds list AK47 with the same four-part origin statement; for the feminized Bulk Seeds version about 60 days of flowering are given.

Aroma and Flavor:

Serious Seeds describes a spicy scent with a sweet citrus note, plus hints of lemon, butter and skunk. In flavor the strain is mild and slightly sweet with an undertone of sandalwood. Other strain descriptions add earthy, sour, floral and herbal notes as well as tobacco; grow reports mention earth, cookie dough and lime, and in flavor lemon and wood. Two strain descriptions list myrcene as the dominant terpene, followed by caryophyllene and pinene, one of them additionally limonene.

Effects:

The breeder promotes the strain under the nickname “One Hit Wonder” and describes the effect as mentally and physically soothing. User reports are divided: some describe a creative, euphoric head effect that makes people talkative, others quiet relaxation up to couch lock. Growers call the effect strong and long-lasting, and one found it too intense. Reported side effects are dry mouth, dry eyes, dizziness, lethargy and restlessness or nervousness as the effect sets in.

THC and CBD Content:

Serious Seeds states 20 % THC and 1 % CBD. According to the breeder, an independent lab test at the 1999 Cannabis Cup produced a single value of 21.5 % THC, the highest of all entries that year; a High Times article from 2013 gives the same value. Other strain descriptions put the THC content lower, at 13 to 20 %.

This article is for informational purposes only and is not a substitute for medical or therapeutic advice. If you have any health-related questions, please consult a doctor or another qualified professional.

Effects & aroma

From reviews and experience reports — subjective, not a medical statement

Reported as positive
hungry
focused
energetic
Reported side effects
dizzy
anxious
paranoid
Aroma & flavor
Herbs Spicy Butter

No reviews yet — information from the strain description. Rate the strain to see shares.

Cannabinoids & terpenes

Levels vary by batch, phenotype and cultivation — values are indicative

THC
21.5 % Lab value (1 sample)
20 % Breeder data
13–20 %additional figure
0 %35 %
CBD
1 % Breeder data
0 %20 %
Terpene profile
  • #1
    MyrceneHerbs
  • #2
    PinenePine
  • #3
    CaryophyllenePepper
  • #4
    LimoneneCitrus

Cultivation

Indicative values from breeder data and grow reports — varies by phenotype and setup

Flowering & harvest
Breeder data
Flowering time
53–63 days
Outdoor harvest
Mid to late October · Northern hemisphere
Yield & height
Breeder data
Yield indoor
350–600 g/m²
Yield outdoor
600–650 g/plant
Height indoor
80–140 cm
Height outdoor
130–170 cm

Grow reports give the height gain from the start of flowering in percent (167 to 533 %), see community.reported_values; not converted into factors.

Difficulty, environment & climate
Breeder data
Difficulty
Easy
Indoor
suitable
Outdoor
suitable
Greenhouse
suitable
Resistances
Mold
High
Morphology
Bud structure
Dense
Trichome coverage
High
Calyx-to-leaf ratio
High

Breeder: compact, sparsely leafed, resin-coated flowers. Two described phenotypes: stretched, slower flowering, sativa-leaning; squat, faster flowering, indica-leaning. Several grow reports assign their plants to the indica-like type. Dried buds in reports hard and compact, once normally compact; flower-to-leaf ratio good to very good. Grow described on the breeder's site: regular plants 85 to 102 cm, feminized 65 to 85 cm (growing environment unclear).

Training
Topping
Recommended
Support needed
Yes

Good response to early topping according to one strain description; one grower supported the plants during flowering because of heavy side branches.

Other
Breeder data
Odor during flowering
High
Nutrient demand
Low

Genetics & origin

Origin
Breeder data
Cross
Colombian (Kolumbien Sativa) × Mexican (Mexiko Sativa) × Thai (Thailand Sativa) × Afghani (Afghanistan Indica)
Origin
Nicaragua, Amsterdam
First release
1992
Type
Sativa-dominant
Available as seeds
Regular, Feminized, Autoflowering
Flowering types (all versions)
Photoperiod, Autoflowering
Original breeder
Serious Seeds
Awards
  • Highlife Cup 2016Bio · 2nd place
  • High Times Cannabis Cup 2011Hybrid · 3rd place
  • Treating Yourself Expo Toronto 2010Sativa
  • Highlife Cup Barcelona 2005Hashish · 1st place
  • High Times Cannabis Cup 2003Indica · 2nd place
  • High Times Leserwahl Pflanze des Jahres (Plant of the Year) 20031st place
  • High Times Cannabis Cup 1999Sativa · 2nd place
  • High Times Cannabis Cup 1996Hydro · 3rd place

Versions by different breeders

Several breeders sell their own versions under this name. Each figure comes from the respective breeder.

Serious SeedsAK-47
Original
PhotoperiodRegularFeminized
Flowering
53–63 days
Yield indoor
350–600 g/m²
THC
20 %
CBD
1 %

Original version by Simon (Serious Seeds), crossed in 1992, presented in 1994, further stabilized in 1999. Breeder gives 8 to 9 weeks or 53 to 63 days of flowering and an outdoor harvest in mid to late October. In a grow described on the breeder's site, regular plants reached 85 to 102 cm and feminized ones 65 to 85 cm.

Bulk SeedsAK 47
Relation unclear
PhotoperiodFeminized
Flowering
60 days

Same origin statement; listed as discontinued; flowering ±60 days; feminized only.

Serious SeedsAuto AK-47
Relation unclear
AutofloweringFeminizedAutoflowering

Autoflowering version by the original breeder; crossing partner not stated. According to the breeder 70 to 80 days from germination to harvest, 40 to 75 g per plant indoors, final height 75 to 100 cm; feminized only.

More breeders (1): Growers Choice

Lab results

Measurements of individual samples. Values vary by batch, cultivation and phenotype.

Flower · 1999Unabhängiges Labor (nicht namentlich genannt)
THC21.5 %

Community

9 grow and experience reports reviewed Community reports
Consensus

Dried buds hard and compact, good flower-to-leaf ratio; indoor flowering mostly 60 to 63 days (7 of 9 reports); plants undemanding in feeding and resistant to mold; effect strong and long-lasting.

Divergent reports

Height gain from the start of flowering between 167 and 533 %; effect partly stimulating and creative, partly soothing up to couch lock; one grower reported disappointing harvests and found the effect too intense; flowering duration of individual runs 55 and 70 days respectively.

Reported values from individual grows
Height gain from start of flowering, starting height 10 cm (to 50 cm)
400 percent
Height gain from start of flowering, starting height 15 cm (to 95 cm)
533 percent
Height gain from start of flowering, starting height 20 cm (to 55 cm)
175 percent
Height gain from start of flowering, starting height 25 cm (to 75 cm)
200 percent
Height gain from start of flowering, starting height 28 cm (to 75 cm)
168 percent
Height gain from start of flowering, starting height 30 cm (to 80 cm)
167 percent
Height gain from start of flowering, starting height 40 cm (to 120 cm)
200 percent
Flowering duration in a grow report
55 days
Flowering duration in a grow report
70 days
Flowering duration in a grow report
60 days
Flowering duration in a grow report
60 days
Flowering duration in a grow report
60 days
Flowering duration in a grow report
60 days
Flowering duration in a grow report
63 days
Flowering duration in a grow report
60 days
Flowering duration in a grow report
61 days
Yield per plant, 6-litre pot under 400 W
40 g/plant
Yield per plant, 5 plants in 20-litre pots under 600 W
110–120 g/plant

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Similar strains

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