Schrom by Clone Only Strains
If you were prowling the forums back in the early 2000s, you definitely heard the whispers about Schrom. Bred by an underground legend who went by the handle Schroomy420, this clone-only unicorn was born from a lucky strike cross between a heavy-hitting Romulan mother and what most old heads agree was a Colombian Gold male—though you'll still find some purists arguing it was actually a Silver Haze. Because Schroomy never dropped a commercial seed line, the authentic cut became a holy grail for collectors. You either knew a guy who had the mother plant in his basement, or you didn't smoke Schrom. And man, those who got their hands on a cutting guarded it with their lives.
In the grow room, she was a beast. Growers quickly realized she stretched like crazy during the first few weeks of flower, a dead giveaway of those sativa roots, but the bud structure stayed dense enough to avoid the dreaded fluff. The real magic, though, was the terpene profile. When you cracked a jar of properly cured Schrom, it hit you right in the chest with a sharp, pungent blast of lemon zest and lime, backed up by this spicy, almost hazy undertone. It wasn’t just another citrus strain; it had a funky grease to it that left your fingers sticky for days. The high was pure soaring functional energy, clearing the fog out of your head without sending you into a paranoid spin.
Today, the original unadulterated Schrom clone is incredibly tough to track down, but her DNA is still pumping through some of the best modern hybrids on the market. Breeders obsessed with that freakish lemon-lime funk have used her as a frost donor and terp booster for years. Just look at what Archive Seed Bank did with Schrom Face, crossing the old mom to their Face Off OG Bx1 to beef up the structure while keeping that zesty spice intact. If you ever pop seeds with Schrom in the lineage, hunt for the tall, stretchy phenos that reek of lime peels and old-school spice—that's the real magic shining through.
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Similar strains
| Breeder | Clone Only Strains |
|---|---|
| Type | mostly indica |
| Flowering time | ±70 days |
| Environment | Indoors |
| Lineage | Romulan × Colombia Mostly Indica |
| Descendants | Schromba, Schrom x Pre Soviet Afghani, Schrom x Memory Loss, Schrom Face, Afternoon Delight, Tasha Yar Haze |
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🧬 Explore the family: Romulan · Colombia Mostly Indica · Schromba · Schrom x Pre Soviet Afghani · Schrom x Memory Loss · Schrom Face · Afternoon Delight · Tasha Yar Haze
Ancestry Pedigree
Unknown or Legendary
Original Strains
Original Strains
Growing Schrom: 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 Romulan or Colombia Mostly Indica 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.
Schrom FAQ
How long does Schrom take to flower?
Schrom typically flowers in around 70 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Schrom an indica or a sativa?
Schrom is listed as mostly indica.
What are the parents of Schrom?
Schrom was bred from Romulan × Colombia Mostly Indica by Clone Only Strains.
What environment does Schrom 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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