5 Alive Feminized vs Ace of Spades Autoflower — Side-by-Side Comparison

5 Alive Feminized and Ace of Spades 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.

5 Alive Feminized vs Ace of Spades Autoflower at a glance

Spec5 Alive FeminizedAce of Spades Autoflower
THC29%winner20%
Strain split18% Indica / 82% Sativa66% Indica / 34% Sativa
Flowering time8-10 weekswinner
Indoor yield350-500g/m²
Outdoor yield50-200g/plant
Plant height60-100cm
DifficultyIntermediateEasywinner
AutoflowerNoYes
FeminizedYesYes

Effects compared

5 Alive Feminized delivers

euphoricenergeticcalm

Both share

No overlap — these strains hit very different notes.

Ace of Spades Autoflower delivers

relaxedsleepyhappy

5 Alive Feminized and Ace of Spades Autoflower aim at almost completely different effect profiles, so the choice between them is less about strength and more about the kind of session you want.

Growing 5 Alive Feminized vs growing Ace of Spades Autoflower

5 Alive Feminized

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

5 Alive Feminized seeds deliver Euphoric sativa effects at 27-31% THC. incense and floral flavor. Photo genetics.

Ace of Spades Autoflower

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

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

Ace of Spades Autoflower finishes 91 weeks sooner than 5 Alive Feminized, which matters most for outdoor growers chasing the first frost or anyone running back-to-back indoor cycles. On harvest weight, Ace of Spades 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 Ace of Spades Autoflower.

Which should you grow?

The right answer depends on your setup, but the trade-offs are clear:

Best for beginners

Ace of Spades Autoflower

Best yield

Ace of Spades Autoflower

Fastest harvest

Ace of Spades Autoflower

Highest THC

5 Alive Feminized

Frequently asked questions

Which is stronger, 5 Alive Feminized or Ace of Spades Autoflower?+

5 Alive Feminized comes in higher on the lab sheets at around 29%, compared with 20% for Ace of Spades Autoflower. 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, 5 Alive Feminized or Ace of Spades Autoflower?+

Ace of Spades Autoflower pulls ahead on yield with up to 350-500g/m², while 5 Alive Feminized tops out around . If grams per square meter is the deciding factor, Ace of Spades Autoflower is the safer pick.

Which is faster to harvest?+

Ace of Spades Autoflower flowers in around 8-10 weeks, beating 5 Alive Feminized's window. For a quicker turn-around or for outdoor growers fighting an early frost, Ace of Spades Autoflower is the smarter bet.

Which is easier to grow?+

Ace of Spades Autoflower is the more forgiving plant of the two — rated Easy versus Intermediate for 5 Alive Feminized. First-time growers will have a smoother run with Ace of Spades Autoflower, especially in a small tent.

Where can I buy 5 Alive Feminized or Ace of Spades Autoflower seeds in Canada?+

Royal King Seeds carries both 5 Alive Feminized and Ace of Spades 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 5 Alive Feminized page or the Ace of Spades Autoflower page to pick your pack size in CAD.

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