303 OG Feminized vs 5th Element Autoflower — Side-by-Side Comparison
303 OG Feminized and 5th Element 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.
303 OG Feminized vs 5th Element Autoflower at a glance
| Spec | 303 OG Feminized | 5th Element Autoflower |
|---|---|---|
| THC | 24% | 25%winner |
| Strain split | 58% Indica / 42% 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 | Intermediate | Easywinner |
| Autoflower | No | Yes |
| Feminized | Yes | Yes |
Effects compared
303 OG Feminized delivers
Both share
5th Element Autoflower delivers
303 OG Feminized and 5th Element Autoflower both bring euphoric to the experience, but 303 OG Feminized leans more into relaxed territory while 5th Element Autoflower pushes harder on creative effects.
Growing 303 OG Feminized vs growing 5th Element 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.
5th Element Autoflower
- Flowering: 8-10 weeks
- Indoor yield: 350-500g/m²
- Outdoor yield: 50-200g/plant
- Height: 60-100cm
- Difficulty: Easy
5th Element Autoflower delivers relaxing indica effects in a fast-finishing autoflowering format — seed to harvest in 9-11 weeks.
5th Element 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, 5th Element 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 5th Element Autoflower.
Which should you grow?
The right answer depends on your setup, but the trade-offs are clear:
Best for beginners
5th Element Autoflower
Best yield
5th Element Autoflower
Fastest harvest
5th Element Autoflower
Highest THC
5th Element Autoflower
Frequently asked questions
Which is stronger, 303 OG Feminized or 5th Element Autoflower?+
5th Element Autoflower comes in higher on the lab sheets at around 25%, compared with 24% for 303 OG 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, 303 OG Feminized or 5th Element Autoflower?+
5th Element 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, 5th Element Autoflower is the safer pick.
Which is faster to harvest?+
5th Element 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, 5th Element Autoflower is the smarter bet.
Which is easier to grow?+
5th Element 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 5th Element Autoflower, especially in a small tent.
Where can I buy 303 OG Feminized or 5th Element Autoflower seeds in Canada?+
Royal King Seeds carries both 303 OG Feminized and 5th Element 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 5th Element Autoflower page to pick your pack size in CAD.
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