501st OG Feminized vs 9 Pound Hammer Autoflower — Side-by-Side Comparison

501st OG Feminized and 9 Pound Hammer Autoflower keep showing up in the same buyer questions, and the reason is simple: they overlap in popularity but not in payoff. The comparison underneath uses real cultivar data — THC, indica/sativa split, flowering time, indoor and outdoor yield, height, and difficulty — so the decision becomes a matter of fit, not hype.

501st OG Feminized vs 9 Pound Hammer Autoflower at a glance

Spec501st OG Feminized9 Pound Hammer Autoflower
THC18%23%winner
Strain split74% Indica / 26% Sativa66% Indica / 34% Sativa
Flowering time8-10 weekswinner
Indoor yield350-500g/m²
Outdoor yield50-200g/plant
Plant height60-100cm
DifficultyIntermediateEasywinner
AutoflowerNoYes
FeminizedYesYes

Effects compared

501st OG Feminized delivers

relaxedsleepyhappy

Both share

relaxedsleepyhappy

9 Pound Hammer Autoflower delivers

relaxedsleepyhappy

501st OG Feminized and 9 Pound Hammer Autoflower both bring relaxed, sleepy, happy to the experience, but 501st OG Feminized leans more into relaxed territory while 9 Pound Hammer Autoflower pushes harder on relaxed effects.

Growing 501st OG Feminized vs growing 9 Pound Hammer Autoflower

501st OG Feminized

  • Flowering: Not specified
  • Indoor yield: Not specified
  • Outdoor yield: Not specified
  • Height: Not specified
  • Difficulty: Intermediate

Grow 501st OG Feminized in Canada — 74/26 indica with pine terpenes. 16-20% THC. Feminized seeds.

9 Pound Hammer Autoflower

  • Flowering: 8-10 weeks
  • Indoor yield: 350-500g/m²
  • Outdoor yield: 50-200g/plant
  • Height: 60-100cm
  • Difficulty: Easy

9 Pound Hammer Autoflower delivers relaxing indica effects in a fast-finishing autoflowering format — seed to harvest in 9-11 weeks.

9 Pound Hammer Autoflower finishes 91 weeks sooner than 501st OG Feminized, which matters most for outdoor growers chasing the first frost or anyone running back-to-back indoor cycles. On harvest weight, 9 Pound Hammer Autoflower edges ahead, especially when you give it a full SCROG net. If you are still building muscle memory around feeding and humidity control, lean on 9 Pound Hammer Autoflower.

Which should you grow?

So which strain wins?

Best for beginners

9 Pound Hammer Autoflower

Best yield

9 Pound Hammer Autoflower

Fastest harvest

9 Pound Hammer Autoflower

Highest THC

9 Pound Hammer Autoflower

Frequently asked questions

Which is stronger, 501st OG Feminized or 9 Pound Hammer Autoflower?+

9 Pound Hammer Autoflower comes in higher on the lab sheets at around 23%, compared with 18% for 501st OG Feminized. That said, real-world potency depends on phenotype, cure, and grow conditions — both strains can deliver a serious hit when grown well.

Which yields more, 501st OG Feminized or 9 Pound Hammer Autoflower?+

9 Pound Hammer Autoflower pulls ahead on yield with up to 350-500g/m², while 501st OG Feminized tops out around . If grams per square meter is the deciding factor, 9 Pound Hammer Autoflower is the safer pick.

Which is faster to harvest?+

9 Pound Hammer Autoflower flowers in around 8-10 weeks, beating 501st OG Feminized's window. For a quicker turn-around or for outdoor growers fighting an early frost, 9 Pound Hammer Autoflower is the smarter bet.

Which is easier to grow?+

9 Pound Hammer Autoflower is the more forgiving plant of the two — rated Easy versus Intermediate for 501st OG Feminized. First-time growers will have a smoother run with 9 Pound Hammer Autoflower, especially in a small tent.

Where can I buy 501st OG Feminized or 9 Pound Hammer Autoflower seeds in Canada?+

Royal King Seeds carries both 501st OG Feminized and 9 Pound Hammer Autoflower as feminized seeds shipped discreetly across Canada. Each strain ships with our germination guarantee and tracked Canada Post delivery in plain unmarked packaging. Visit the 501st OG Feminized page or the 9 Pound Hammer Autoflower page to pick your pack size in CAD.

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