Blues by Underground Orig.
2 other breeders' versions of Blues — compare flowering times side by side →
If you were running lights in the UK underground back in the late 80s and 90s, you already know about the Blues—or as the Sheffield lads called it, the Livers. This clone-only legend was a staple in the North, holding its ground right alongside Cheese and Psychosis as a pillar of British cannabis history. While the true origins of the Livers cut are still hotly debated in forum threads, most old heads agree it was a freakishly pungent, unique phenotype of Skunk #1, though rumors of Northern Lights or Shiva Skunk lineage still float around. Fast forward to 2010, and Underground Originals (UGORG) did the scene a massive favor by hitting the original clone with a Killer Skunk to release Blues in regular seed form. They later dropped backcrosses (Bx1 and Bx2) to lock down that classic funk for those of us who couldn't get our hands on the cutting.
Growing the Blues is a lesson in odor control. I can't stress this enough: if you aren't running a brand new, high-CFM carbon filter, your entire street is going to know what you're up to. The smell is violently loud—a sweetly rotten, fermenting skunk funk that some growers describe as sour berry mixed with sharp cheese or a dirty gym locker. The plants are vigorous and resilient, usually finishing up around 60 days in flower. While the bud density can fluctuate depending on your environment, they consistently push out incredibly sticky, resin-drenched colas. You might find a few different phenos in the UGORG packs, ranging from a sweeter blueberry muffin profile to straight-up offensive skunk's ass.
The smoke is where Blues really secures its legendary status. Instead of the modern, anxiety-inducing, heart-racing highs, this strain delivers pure "grin fuel." It’s an uplifting, euphoric, and sociable buzz that expands your mind and keeps you laughing. It’s that classic, clear-headed daytime stone that makes you want to get creative or just sit around talking shit with your mates. The flavor translates perfectly from the smell, coating your mouth with a thick, hashy, rotten-berry funk that lingers long after you put the joint out.
🌿 Start a Blues journal — free →
Similar strains
| Breeder | Underground Orig. |
|---|---|
| Type | indica/sativa |
| Flowering time | ±60 days |
| Environment | Outdoors |
| Lineage | Blues × KillerSkunk |
| Descendants | Auto Blues, Bluedawg, Underground Originals - KillerSkunk, SmellyBerry, Brixton Bluez, Fromage Blue, Blazing Blues, Black N Blues, UK Bluez, Psycho Sister, Blues, UGORG#1, UK Scottish Power, Noname, Psychosis x Blues, SmellyBerry |
🌱 Get Blues seeds →
Affiliate link — supports Cultivar at no cost to you.
🧬 Explore the family: Blues · Auto Blues · Bluedawg · Underground Originals - KillerSkunk · SmellyBerry · Brixton Bluez · Fromage Blue · Blazing Blues · Black N Blues
Ancestry Pedigree
Clone Only Strains
Sensi Seeds
The Seed Bank
Cultivators Choice
Original Strains
Original Strains
Original Strains
Underground Originals
Clone Only Strains
Underground Originals
Clone Only Strains
DJ Short
Unknown or Legendary
DJ Short
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Original Strains
Unknown or Legendary
Original Strains
Unknown or Legendary
Original Strains
Unknown or Legendary
Original Strains
Unknown or Legendary
Growing Blues: 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 Blues or KillerSkunk 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.
Blues FAQ
How long does Blues take to flower?
Blues typically flowers in around 60 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Blues an indica or a sativa?
Blues is listed as indica/sativa.
What are the parents of Blues?
Blues was bred from Blues × KillerSkunk by Underground Orig..
What environment does Blues 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.
📷 Growing Blues and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing Blues? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
Track your own grow free — the journal grades your environment against these bands →
Get the one-page grow reference card
VPD, pH by medium, deficiency symptoms and dry/cure targets on a single printable page. Free — plus the occasional grow-data breakdown. No spam, unsubscribe in one click.
