Forum Stomper vs 3 Bears OG: Complete Grower's Comparison
You want to try Mephisto Genetics and you're asking Reddit "which strain should I grow first?" The answer almost always comes down to Forum Stomper or 3 Bears OG. While Batch 1 covered the specialist picks (Double Grape for potency, Sour Stomper for flavor), these two are Mephisto's all-rounders — the strains that do everything well. Forum Stomper brings the cookies and the yield. 3 Bears OG brings the classic OG experience in the easiest auto package Mephisto makes. Here's which one to grow first.
| Spec | Forum Stomper | 3 Bears OG |
|---|---|---|
| Type | Balanced Hybrid Auto (50/50) | Indica-Leaning Hybrid Auto (65/35) |
| THC | 22–27% | 20–25% |
| Genetics | Forum Cookies × Sour Stomper | Triangle Kush × 3 Bears (Bear OG lineage) |
| Difficulty | Easy | Easy (Mephisto's most beginner-friendly) |
| Flower Time | 65–75 days seed to harvest | 65–75 days seed to harvest |
| Yield (Indoor) | 80–150g/plant | 100–200g/plant |
| Height | Medium (50–90cm) | Medium (60–100cm) |
| Effects | Balanced, happy, relaxing, social | Classic OG, relaxing body, clear mind, evening |
| Flavor | Sweet cookies, doughy, dessert, creamy | Earthy, piney, OG Kush, lemon hints |
| Best For | Cookie terp lovers, training-friendly autos, versatile grow | First-time growers, OG Kush fans, low-maintenance auto |
Why These Two?
Mephisto's catalog is deep — 40+ strains can be overwhelming for a first-time buyer. Forum Stomper and 3 Bears OG are the two strains most consistently recommended on r/MephHeads for first-time Mephisto grows. They're easy, reliable, and represent different sides of what Mephisto does best.
Growing Comparison
Both are genuinely easy to grow — among Mephisto's most forgiving strains. 3 Bears OG has a slight edge for absolute beginners. It grows like a Christmas tree (dominant main cola with shorter side branches), requiring almost zero training. Drop the seed, water it, feed it occasionally, and harvest. It handles overwatering, minor nutrient issues, and temperature swings better than most autos.
Forum Stomper is equally easy but rewards a bit more attention. It develops a bushier structure with more lateral branching, which means it responds well to LST. If you tie down the main stem early, you can create an even canopy that produces multiple large colas instead of one dominant one. It's the perfect "first training project" for growers who want to learn LST without risking an expensive grow.
Potency and Effects
Forum Stomper runs slightly higher in THC (22–27% vs 20–25%), but the difference in experience is more about the type of high than the intensity. FS delivers a balanced, happy high — it's social, uplifting, and relaxing without being sedating. You can smoke it anytime and be comfortable. It's the "everyone likes this" strain at a session.
3 Bears OG delivers a more traditional OG Kush experience — relaxing body effects with a clear, functional mind. It's more indica-leaning in its effects, making it better for evening use. The classic earthy, piney OG flavor is immediately recognizable if you've ever smoked OG Kush or any of its descendants. It's not a couch-lock strain, but it's definitely more chill than Forum Stomper.
Flavor Profile
Forum Stomper inherited the Forum Cookies parent's dessert terps — sweet, doughy, cookie-flavored with creamy undertones. It's a crowd-pleaser that appeals to anyone who likes modern dessert strains (Gelato, Cookies, Wedding Cake). The Sour Stomper parent adds just enough sour candy to keep it interesting.
3 Bears OG is old-school in the best way — earthy, piney, with lemon hints and that unmistakable OG Kush funk. If you grew up smoking OG or anything in the Kush family, this flavor profile will feel like coming home. It's less trendy than cookie terps but deeply satisfying for OG enthusiasts.
Yield Comparison
3 Bears OG is the higher yielder — 100–200g per plant, with some growers reporting even more in larger pots. The Christmas tree structure funnels energy into one massive main cola that can get impressively large. It's one of Mephisto's best yielders overall.
Forum Stomper produces 80–150g per plant — solid but slightly less than 3BOG. The bushier structure distributes yield across more bud sites. With LST, you can push FS toward the upper end of its range. The buds are dense and frosty — what they lack in quantity compared to 3BOG, they make up in quality and bag appeal.
Growing Tips
🌱 Forum Stomper
Forum Stomper is the perfect LST training auto. Start bending the main stem at day 15–18 (when it has 4–5 nodes). Tie it down at 90 degrees and the side branches will catch up, creating 4–6 main colas. Use 3–5 gallon pots. Light feeding schedule — 75% strength of what the nutrient brand recommends.
🌱 3 Bears OG
3 Bears OG is Mephisto's most hands-off strain. Grow in a 5-gallon pot with quality soil, water when dry, and let it do its thing. Minimal training needed — the natural Christmas tree shape works great. If anything, just remove a few fan leaves at day 40 to let light reach lower buds. Harvest when trichomes are mostly milky with 10–20% amber.
Where to Buy Forum Stomper & 3 Bears OG Seeds
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North Atlantic Seed Co
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Multiverse Beans
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Frequently Asked Questions
🏆 The Verdict
If you want dessert terps and a great training project, grow Forum Stomper. If you want the easiest possible Mephisto grow with classic OG flavors and bigger yields, grow 3 Bears OG. Both are excellent first Mephisto strains. The community consensus? Buy both. Run one of each in your tent. You'll know after one grow which Mephisto style you prefer, and you'll almost certainly order more.