UW by Clone Only Strains
The lore behind the UW strain is the stuff of Pacific Northwest legend. Also known as UW Purple or UW Hashplant, this pure, devastatingly heavy indica didn't come from a traditional breeder. The story goes that back in the early 1990s, a rogue graduate student pinched a live clone straight out of a federally funded medical cannabis research lab at the University of Washington. From there, it got passed around the tight-knit Seattle medical underground and eventually became one of the most sought-after clone-only cuts in the country. It was never released as a seed, and anybody trying to sell you original UW seeds is full of shit.
In the dirt, the UW cut is an absolute beast of an old-school Afghan-leaning broadleaf. If you drop your night temperatures even a few degrees, she turns a gorgeous, bruised plum purple and starts dripping with resin. The smell is incredibly unique—it's this heavy, medicinal mix of dark berries, hash spice, and straight earth. Guys running this cut on Overgrow have spent decades trying to self it or cross it just to preserve the genetics, but nothing truly matches the raw, unadulterated power of the original mom.
When you smoke it, you better have your schedule cleared for the rest of the night. UW is famous for being a one-hit quitter that delivers a crushing, narcotic body stone. It was kept alive entirely by medical growers because it absolutely obliterates nerve pain and insomnia. Sure, you can find modern repros and S1s floating around the forums, but the true UW clone is a verified piece of underground history. If a crusty old head from Washington offers you a snip of this plant, you take it, root it, and never let it go.
Similar strains
| Breeder | Clone Only Strains |
|---|---|
| Type | mostly indica |
| Environment | Indoors, Outdoors |
| Lineage | Indica |
| Descendants | Seattle Soda, Temple of the Dog, Platinum, SlugSlime, Fission, Dog Trap, Uw Og, The Dub |
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🧬 Explore the family: Indica · Seattle Soda · Temple of the Dog · Platinum · SlugSlime · Fission · Dog Trap · Uw Og · The Dub
Ancestry Pedigree
Original Strains
Growing UW: 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 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.
UW FAQ
Is UW an indica or a sativa?
UW is listed as mostly indica.
What are the parents of UW?
UW was bred from Indica by Clone Only Strains.
What environment does UW 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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