Maxi GOM by GrassOmatic
Bro, if you were growing back when autos were just starting to actually get good, you already know about Maxi GOM by Grass-O-Matic. This was the true queen of the early autoflower days. Before this dropped, everybody was still talking trash about ruderalis genetics, saying autos were just tiny little novelty plants that wouldn't yield and tasted like straight hay. Then Grass-O-Matic comes out swinging, crossing Auto Critical Mass with Auto AK. Yeah, that's right. They took the two biggest chunkers they could find and smashed them together. The result? A stupid heavy yielder that completely changed the game for indoor and outdoor guys alike.
Honestly, growing this thing is a trip. It stays relatively open during veg but once it hits week four, it just stretches out of nowhere and starts stacking these massive, heavy colas. You're definitely gonna need stakes or a trellis because the side branches get so loaded they'll literally snap under their own weight. We're talking 75 days from seed to harvest and you're pulling down serious weight. Just keep an eye on your nitrogen though, she gets real cranky if you feed her too hot. I've seen guys fry their leaves trying to push her too hard.
Listen, the terps on this are totally bonkers for an early-gen auto. You crack open a jar and it just hits you in the face with straight mango and overripe pineapple, backed up by this weird but amazing hint of anise. It's totally visceral. The high hits clear and cerebral at first like a good sativa, but then it just melts into this super heavy body stone. Smoke a fat joint of this and you'll find yourself staring at your grow tent for thirty minutes forgetting what you even went in there to do. Bag appeal is nuts, yields are crazy, and it proved autos were here to stay.
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Similar strains
| Breeder | GrassOmatic |
|---|---|
| Type | ruderalis/indica/sativa |
| Flowering time | ±73 days |
| Environment | Outdoors |
| Lineage | Automatic AK-47 × Auto Mass |
| Descendants | The 7 Dwarfs - Collosus, Fast Gun, Maximus, Piensa En Maxi Gom, Piensa en M8 Auto |
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🧬 Explore the family: Automatic AK-47 · Auto Mass · The 7 Dwarfs - Collosus · Fast Gun · Maximus · Piensa En Maxi Gom · Piensa en M8 Auto
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Growing Maxi GOM: what to expect
As an indica-leaning plant, expect a modest stretch after the flip (roughly 50–100%) and dense bud structure — which makes late-flower humidity discipline the main risk: keep RH in the 40s once buds fatten to stay ahead of mold. Growers familiar with Automatic AK-47 or Auto Mass will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.
Maxi GOM FAQ
How long does Maxi GOM take to flower?
Maxi GOM typically flowers in around 73 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Maxi GOM an indica or a sativa?
Maxi GOM is listed as ruderalis/indica/sativa.
What are the parents of Maxi GOM?
Maxi GOM was bred from Automatic AK-47 × Auto Mass by GrassOmatic.
What environment does Maxi GOM like?
Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.
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