Underdog OG by Loompa Farms
Man, the lore surrounding Underdog OG is thick, and for good reason. Often passed around as Loompa's Headband or Underdawg OG, this clone-only elite is the absolute pride of Loompa Farms. The lineage is generally accepted as an OG Kush and Sour Diesel mashup, but Loompa was the one who really locked this specific cut down and made it a holy grail for connoisseurs. There was a time when everybody and their brother claimed they had the real Headband, but Loompa was notoriously vocal about calling out the fakes. If you didn't have the lanky, sprawling vine-like growth and that specific greasy resin, you were just running a cheap imitation.
Growing the real Underdog is a test of your skills. She has that classic OG-style branching that requires serious support, otherwise her heavy, dense colas will just snap the stems late in flower. She's also a remarkably heavy feeder; if you don't stay on top of your CalMag and push the nutes right up to the edge, she'll let you know she's unhappy. But if you dial her in over that 8 to 10 week run, she rewards you with an insane calyx-to-leaf ratio and nugs that reek of sharp lemon-diesel, fresh pine, and that deep, earthy kush funk that just clings to your clothes.
When you finally get to spark it, you understand why people guarded this cut with their lives. The initial hit brings a soaring, euphoric pressure right around your crown—hence the Headband moniker—but it doesn't take long for that heavy indica lineage to drop the hammer. It shifts into an incredibly sedative, full-body stone that practically glues you to the floor. It's legendary medicine for pain and insomnia, but it will absolutely overwhelm a lightweight. True clone-only cuts of Underdog OG are still unicorns in the scene, so if you ever get your hands on a verified snip, you treat it like royalty.
🌿 Start a Underdog OG journal — free →
Similar strains
| Breeder | Loompa Farms |
|---|---|
| Type | mostly indica |
| Flowering time | ±63 days |
| Environment | Indoors |
| Lineage | Underdawg OG × Unknown Strain |
| Descendants | DK Orange, Headshot, Pink Starburst, 3 OG's #1, Skunkband, Stoney Creek O.G., Amalfitana, Black Bandana, Sunset Veritas, Local Skunk, Creme OG |
🌱 Get Underdog OG seeds →
Affiliate link — supports Cultivar at no cost to you.
🧬 Explore the family: Underdawg OG · Unknown Strain · DK Orange · Headshot · Pink Starburst · 3 OG's #1 · Skunkband · Stoney Creek O.G. · Amalfitana · Black Bandana
Ancestry Pedigree
Clone Only Strains
Clone Only Strains
Original Strains
Original Strains
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Sensi Seeds
Sensi Seeds
The Seed Bank
Cultivators Choice
Original Strains
Original Strains
Original Strains
Unknown or Legendary
Original Strains
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Cultivators Choice
Unknown or Legendary
Clone Only Strains
Original Strains
Growing Underdog OG: 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 Underdawg OG or Unknown Strain 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.
Underdog OG FAQ
How long does Underdog OG take to flower?
Underdog OG typically flowers in around 63 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Underdog OG an indica or a sativa?
Underdog OG is listed as mostly indica.
What are the parents of Underdog OG?
Underdog OG was bred from Underdawg OG × Unknown Strain by Loompa Farms.
What environment does Underdog OG 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 Underdog OG and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing Underdog OG? 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.