3 Kings Autoflower vs A-Train Feminized — Side-by-Side Comparison
If you have narrowed your shortlist down to 3 Kings Autoflower and A-Train Feminized, 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.
3 Kings Autoflower vs A-Train Feminized at a glance
| Spec | 3 Kings Autoflower | A-Train Feminized |
|---|---|---|
| THC | 16% | 21%winner |
| Strain split | 13% Indica / 87% Sativa | 79% Indica / 21% Sativa |
| Flowering time | 8-10 weekswinner | — |
| Indoor yield | 350-500g/m² | — |
| Outdoor yield | 50-200g/plant | — |
| Plant height | 60-100cm | — |
| Difficulty | Easywinner | Intermediate |
| Autoflower | Yes | No |
| Feminized | Yes | Yes |
Effects compared
3 Kings Autoflower delivers
Both share
A-Train Feminized delivers
3 Kings Autoflower and A-Train Feminized both bring happy to the experience, but 3 Kings Autoflower leans more into energetic territory while A-Train Feminized pushes harder on relaxed effects.
Growing 3 Kings Autoflower vs growing A-Train Feminized
3 Kings Autoflower
- Flowering: 8-10 weeks
- Indoor yield: 350-500g/m²
- Outdoor yield: 50-200g/plant
- Height: 60-100cm
- Difficulty: Easy
3 Kings Autoflower delivers uplifting sativa effects in a fast-finishing autoflowering format — seed to harvest in 9-11 weeks.
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.
3 Kings 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, 3 Kings 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 3 Kings Autoflower.
Which should you grow?
Picking between these two comes down to four practical questions:
Best for beginners
3 Kings Autoflower
Best yield
3 Kings Autoflower
Fastest harvest
3 Kings Autoflower
Highest THC
A-Train Feminized
Frequently asked questions
Which is stronger, 3 Kings Autoflower or A-Train Feminized?+
A-Train Feminized comes in higher on the lab sheets at around 21%, compared with 16% for 3 Kings 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, 3 Kings Autoflower or A-Train Feminized?+
3 Kings 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, 3 Kings Autoflower is the safer pick.
Which is faster to harvest?+
3 Kings 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, 3 Kings Autoflower is the smarter bet.
Which is easier to grow?+
3 Kings 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 3 Kings Autoflower, especially in a small tent.
Where can I buy 3 Kings Autoflower or A-Train Feminized seeds in Canada?+
Royal King Seeds carries both 3 Kings Autoflower and A-Train 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 3 Kings Autoflower page or the A-Train Feminized page to pick your pack size in CAD.
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