9 Pound Hammer Autoflower vs Ace of Spades Feminized — Side-by-Side Comparison

9 Pound Hammer Autoflower and Ace of Spades Feminized 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.

9 Pound Hammer Autoflower vs Ace of Spades Feminized at a glance

Spec9 Pound Hammer AutoflowerAce of Spades Feminized
THC23%winner20%
Strain split66% Indica / 34% Sativa66% Indica / 34% Sativa
Flowering time8-10 weekswinner
Indoor yield350-500g/m²
Outdoor yield50-200g/plant
Plant height60-100cm
DifficultyEasywinnerIntermediate
AutoflowerYesNo
FeminizedYesYes

Effects compared

9 Pound Hammer Autoflower delivers

relaxedsleepyhappy

Both share

relaxedsleepyhappy

Ace of Spades Feminized delivers

relaxedsleepyhappy

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

Growing 9 Pound Hammer Autoflower vs growing Ace of Spades Feminized

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.

Ace of Spades Feminized

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

Ace of Spades Feminized autoflower seeds — indica genetics at 18-22% THC. Relaxed effects with herbal flavor. Ships across Canada.

9 Pound Hammer Autoflower finishes 91 weeks sooner than Ace of Spades 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, 9 Pound Hammer Autoflower or Ace of Spades Feminized?+

9 Pound Hammer Autoflower comes in higher on the lab sheets at around 23%, compared with 20% for Ace of Spades 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, 9 Pound Hammer Autoflower or Ace of Spades Feminized?+

9 Pound Hammer Autoflower pulls ahead on yield with up to 350-500g/m², while Ace of Spades 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 Ace of Spades 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 Ace of Spades Feminized. First-time growers will have a smoother run with 9 Pound Hammer Autoflower, especially in a small tent.

Where can I buy 9 Pound Hammer Autoflower or Ace of Spades Feminized seeds in Canada?+

Royal King Seeds carries both 9 Pound Hammer Autoflower and Ace of Spades Feminized 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 9 Pound Hammer Autoflower page or the Ace of Spades Feminized page to pick your pack size in CAD.

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