303 OG Feminized vs Afghan Autoflower — Side-by-Side Comparison
Choosing between 303 OG Feminized and Afghan Autoflower? Both are heavyweights in the modern cannabis catalog, but they pull in different directions on potency, growth rhythm, and end-user experience. This side-by-side breaks down the genetics, growing data, and effects so you can pick the right packet of seeds for your tent or garden.
303 OG Feminized vs Afghan Autoflower at a glance
| Spec | 303 OG Feminized | Afghan Autoflower |
|---|---|---|
| THC | 24%winner | 18% |
| Strain split | 58% Indica / 42% Sativa | 70% Indica / 30% Sativa |
| Flowering time | — | 8-10 weekswinner |
| Indoor yield | — | 350-500g/m² |
| Outdoor yield | — | 50-200g/plant |
| Plant height | — | 60-100cm |
| Difficulty | Intermediate | Easywinner |
| Autoflower | No | Yes |
| Feminized | Yes | Yes |
Effects compared
303 OG Feminized delivers
Both share
Afghan Autoflower delivers
303 OG Feminized and Afghan 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 303 OG Feminized vs growing Afghan Autoflower
303 OG Feminized
- Flowering: Not specified
- Indoor yield: Not specified
- Outdoor yield: Not specified
- Height: Not specified
- Difficulty: Intermediate
303 OG Feminized autoflower seeds — hybrid genetics at 22-26% THC. Relaxed effects with earthy flavor. Ships across Canada.
Afghan Autoflower
- Flowering: 8-10 weeks
- Indoor yield: 350-500g/m²
- Outdoor yield: 50-200g/plant
- Height: 60-100cm
- Difficulty: Easy
Afghan Autoflower delivers relaxing indica effects in a fast-finishing autoflowering format — seed to harvest in 9-11 weeks.
Afghan Autoflower finishes 91 weeks sooner than 303 OG Feminized, which matters most for outdoor growers chasing the first frost or anyone running back-to-back indoor cycles. On harvest weight, Afghan 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 Afghan Autoflower.
Which should you grow?
Here is the short version of the verdict:
Best for beginners
Afghan Autoflower
Best yield
Afghan Autoflower
Fastest harvest
Afghan Autoflower
Highest THC
303 OG Feminized
Frequently asked questions
Which is stronger, 303 OG Feminized or Afghan Autoflower?+
303 OG Feminized comes in higher on the lab sheets at around 24%, compared with 18% for Afghan 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, 303 OG Feminized or Afghan Autoflower?+
Afghan Autoflower pulls ahead on yield with up to 350-500g/m², while 303 OG Feminized tops out around . If grams per square meter is the deciding factor, Afghan Autoflower is the safer pick.
Which is faster to harvest?+
Afghan Autoflower flowers in around 8-10 weeks, beating 303 OG Feminized's window. For a quicker turn-around or for outdoor growers fighting an early frost, Afghan Autoflower is the smarter bet.
Which is easier to grow?+
Afghan Autoflower is the more forgiving plant of the two — rated Easy versus Intermediate for 303 OG Feminized. First-time growers will have a smoother run with Afghan Autoflower, especially in a small tent.
Where can I buy 303 OG Feminized or Afghan Autoflower seeds in Canada?+
Royal King Seeds carries both 303 OG Feminized and Afghan 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 303 OG Feminized page or the Afghan Autoflower page to pick your pack size in CAD.
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