Headbanger is Karma Genetics' cross of its own Sour Diesel K.G. cut with Biker Kush, and one of the rare strain pages where the cup placements belong to the plant itself rather than to a famous parent. Ten to eleven weeks, regular seed only, and resin output heavy enough that Karma pitches it straight at extractors.
Where It Comes From
Karma Genetics built its reputation in Amsterdam on Diesel and OG selections, and Headbanger sits in the breeder's Biker Kush line, the branch where Karma's Kush work gets crossed outward instead of folded back in. The plan reads clearly in the parentage: keep the Diesel top note, put an OG skeleton underneath it.
The competition record dates the strain. It was placing in Amsterdam by 2013, which puts its creation in the years before that, at the tail of the era when European cup results still functioned as the main proving ground for American-lineage Diesel and OG genetics.
That context explains why a plant this old still turns up in seed catalogs while most of its contemporaries do not. It was made when a cup placement actually moved a breeder's whole catalog, so it had to be good in a room, not just good on a shelf.
The Cross
Karma Genetics is the breeder, and the formula is the Sour Diesel K.G. cut crossed to Biker Kush. The listing gives a ten-to-eleven-week flowering window and big-yielding plants, aimed squarely at people who already drink from the kush and diesel end of the menu.
Karma never released Headbanger as feminized seed. The line stayed regular-only, which in practice means it has been handled by growers willing to sex a room rather than by the convenience market. That is part of why its expressions have stayed reasonably consistent across a decade of hands.
The Sour Diesel side supplies the architecture you would expect from a Diesel: stretch, pointed tops, long internodes, a plant that wants room. Biker Kush pulls the frame back in, adding density and trichome load. The result is Diesel structure on a tighter build, and Karma flags that resin output specifically as suited to extraction.
What It Left Behind
The receipts are unusually clean for a strain of this age: third place, sativa category, 2013 Cannabis Cup; second place, sativa, IC 420 Growers Cup 2015; first place, sativa, IC 420 Growers Cup 2016. The last two were entered under Boys from the South.
Three placements across three years in the same category is a consistency record, not a lucky jar. That is the whole argument for Headbanger. It did not win once and coast on it, and it did not borrow a trophy from either parent to fill out a page.
The other half of its record is practical. A ten-to-eleven-week regular-seed line with heavy resin output is a working plant for people who make things, not a novelty jar, and Karma has kept it in the catalog on those terms rather than repackaging it every few seasons.
The High Rise Take
Headbanger is Karma keeping the Diesel loud and putting an OG frame under it. Regular seed, ten to eleven weeks, and a trophy case that belongs to the plant rather than its family.