A-Train Feminized vs Ace of Spades Autoflower — Side-by-Side Comparison

If you have narrowed your shortlist down to A-Train Feminized and Ace of Spades Autoflower, you are weighing two genuinely different growing personalities. One leans toward the kind of plant that forgives a beginner; the other rewards a grower who already understands their environment. The data below makes that gap obvious.

A-Train Feminized vs Ace of Spades Autoflower at a glance

SpecA-Train FeminizedAce of Spades Autoflower
THC21%winner20%
Strain split79% Indica / 21% Sativa66% Indica / 34% Sativa
Flowering time8-10 weekswinner
Indoor yield350-500g/m²
Outdoor yield50-200g/plant
Plant height60-100cm
DifficultyIntermediateEasywinner
AutoflowerNoYes
FeminizedYesYes

Effects compared

A-Train Feminized delivers

relaxedsleepyhappy

Both share

relaxedsleepyhappy

Ace of Spades Autoflower delivers

relaxedsleepyhappy

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

Growing A-Train Feminized vs growing Ace of Spades Autoflower

A-Train Feminized

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

A-Train Feminized: 79/21 indica seeds, 19-23% THC. Relaxed and Sleepy effects, mossy flavor. Feminized.

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 A-Train 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?

Picking between these two comes down to four practical questions:

Best for beginners

Ace of Spades Autoflower

Best yield

Ace of Spades Autoflower

Fastest harvest

Ace of Spades Autoflower

Highest THC

A-Train Feminized

Frequently asked questions

Which is stronger, A-Train Feminized or Ace of Spades Autoflower?+

A-Train Feminized comes in higher on the lab sheets at around 21%, 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, A-Train Feminized or Ace of Spades Autoflower?+

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

Where can I buy A-Train Feminized or Ace of Spades Autoflower seeds in Canada?+

Royal King Seeds carries both A-Train 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 A-Train Feminized page or the Ace of Spades Autoflower page to pick your pack size in CAD.

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