Autoflower · Lowryder Seeds / The Joint Doctor
Auto AK-47
Auto AK-47 is one of the original commercial autoflower lines, developed by Lowryder Seeds and The Joint Doctor in the mid-2000s by crossing AK-47 with Lowryder #2 ruderalis stock to bring the canonical AK terpene profile into autoflower format. The strain helped define the autoflower category in its early commercial years, alongside Lowryder, Easy Ryder, and Diesel Ryder, and it remains one of the most-recognized auto names two decades after release. The total cycle runs nine to eleven weeks from seed under 18-to-20-hour light, with plants staying compact at 60 to 100 centimeters indoors and producing the sharp, earthy, slightly skunk terpene profile that AK-47 growers expect. The high is sativa-leaning with a clear, energetic cerebral lift and minimal body heaviness — closer to the original AK character than most autoflower conversions of sativa-dominant photoperiod lines. The Lowryder release is the canonical Auto AK-47 source, with numerous downstream banks releasing their own Auto AK selections that trace back to the original Joint Doctor work.
Reviewed 2026-05-23· Sources: seedfinder.eu, Lowryder Seeds catalogue
Potency
- THC range
- 14–18%
- Typical THC
- 16%
- CBD
- up to 0.5%
Flowering
- Indoor weeks
- 9–11 wk
- Difficulty
- Easy
- Climate
- temperate, Mediterranean, indoor
Yield & size
- Indoor
- 350-450 g/m²
- Outdoor
- 100-200 g/plant
- Height
- 60-100 cm
Indica / sativa ratio
Terpene profile
The aromatic compounds below shape how Auto AK-47 smells, tastes, and ultimately feels in the body.
- dominant
Caryophyllene
Peppery and spicy — the only terpene that binds CB2 receptors, studied for anti-inflammatory action.
- secondary
Myrcene
Sedating, musky, herbal — commonly linked to couch-lock effects.
- secondary
Humulene
Hoppy and earthy — appetite-suppressing and shared with hops and sage.
- minor
Pinene
Alert and pine-forward — associated with mental clarity and bronchodilation.
Reported side effects
Lineage
Auto AK-47 traces to AK-47 × Lowryder #2. The cross sits in the AK-47 x ruderalis family, which influences both the terpene profile and the flowering structure described above.
Genetic family tree
Documented parents and grandparents for Auto AK-47 based on breeder catalogues. Library entries are clickable; ancestors not yet documented on this site appear in a lighter, non-linked box.
Grow profile
Grow profile
- Indica / sativa
- 35% / 65%
- Flowering days
- 63–77 days
- Stretch
- Low
- Pest resistance
- High
- Mold resistance
- High
- Training methods
- lst
Feed schedule for Auto AK-47
These EC and NPK targets are starting points calibrated for the strain's Hybrid lean and easy difficulty rating — not gospel. Drop 15-20% off any EC ceiling on your first run and let the plant tell you where it actually wants to feed.
Suggested feed schedule
- Late veg
- 1.0-1.2 EC
- Early flower
- 1.1-1.3 EC, NPK 2-2-4
- Mid flower
- 1.4-1.6 EC, NPK 1-3-5
- Late flower
- 1.2-1.4 EC
- Final week
- Plain pH-balanced water for the last 5-7 days.
Full breakdown of feed math, runoff testing, and salt buildup in our nutrient guide.
What to expect through the grow cycle
Auto AK-47 is documented with a 10-week flower split across the standard hybrid phases. The visual below maps a documented 14-week cycle built from 4weeks of vegetative growth and the strain's published flowering window.
Published grow reports for Auto AK-47 concentrate the most observational notes on the mid-to-late flower transition. This timeline is descriptive — it reflects what reports document, not a how-to. Actual week-to-week behaviour varies with phenotype, light intensity, pot size, and environment.
Phase details
- Veg (weeks 1-4)
- The documented vegetative period for Auto AK-47. Plants establish root structure, leaf canopy, and node count before flower triggering, with a easy difficulty rating shaping how forgiving the early canopy work tends to be.
- Stretch (weeks 5-8)
- Auto AK-47 is documented as having low stretch. Reports describe the plant roughly doubling in height during this phase as the hybrid structure establishes its final flowering frame.
- Bud sites (weeks 9-10)
- Pre-flowers form at the nodes and calyxes begin to develop. Grow reports for Auto AK-47note this as the window where the canopy's eventual bud distribution becomes visible.
- Bud development (weeks 11-12)
- Flowers thicken and calyxes fatten through this phase. Documented Auto AK-47 runs show the bulk of visible flower mass accumulating here, with resin production accelerating toward the end.
- Ripening (week 13)
- Trichomes transition from clear toward cloudy and amber. Reports for Auto AK-47 describe the Caryophyllene-led terpene profile maturing through this window, with aroma sharpening week over week.
- Final (week 14)
- Calyx swelling is documented as complete and the harvest window opens. Published Auto AK-47 runs end here, within the 9-11 week flowering range reported by the breeder.
Flavor & aroma
Reported effects
Common questions about Auto AK-47
Is Auto AK-47 the original commercial AK autoflower?
Yes — The Joint Doctor at Lowryder Seeds developed one of the earliest commercial AK-47 autoflower conversions in the mid-2000s by crossing AK-47 stock with Lowryder #2. Most other Auto AK seeds on the market are downstream selections rather than the original Joint Doctor work.
Why is the THC lower than photoperiod AK-47?
Autoflowers from the early commercial years generally produced lower THC than their photoperiod parents because of the shorter vegetative period and the ruderalis input's dilution of cannabinoid expression. Modern autoflower breeding has narrowed the gap, but Auto AK-47 still expresses around 14-18% THC versus 18-22% for photoperiod AK.
Breeder of record
Lowryder Seeds / The Joint Doctor
View breeder profile and other strains →
Strains similar to Auto AK-47
These picks lean on the same terpene profile and parent genetics as Auto AK-47 — shared dominant terps, overlapping lineage, and matching indica/sativa lean. No star ratings or popularity contests, just overlap on the traits that actually drive a similar grow and smoke.
