Blunt Force Trauma by GK Genetics
Blunt Force Trauma, from breeder GK Genetics, is an indica-leaning strain descended from Birthday Cake Kush × 9lb Hammer. Indoors it typically finishes flowering in around 60 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Blunt Force Trauma grows against.
🌿 Start a Blunt Force Trauma journal — free →
Similar strains
| Breeder | GK Genetics |
|---|---|
| Type | indica/sativa |
| Flowering time | ±60 days |
| Environment | Outdoors |
| Lineage | Birthday Cake Kush × 9lb Hammer |
🌱 Get Blunt Force Trauma seeds →
Affiliate link — supports Cultivar at no cost to you.
🧬 Explore the family: Birthday Cake Kush · 9lb Hammer
Ancestry Pedigree
Aficionado Seed Bank
Aficionado Seed Bank
TH Seeds
Unknown or Legendary
Original Strains
Clone Only Strains
Original Strains
Unknown or Legendary
Original Strains
Aficionado Seed Bank
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
Mr Nice Seedbank
Green House Seeds
Cultivators Choice
Unknown or Legendary
Original Strains
Original Strains
Original Strains
Original Strains
Cultivators Choice
Original Strains
Aficionado Seed Bank
Original Strains
Original Strains
Jinxproof Genetics
Unknown or Legendary
Clone Only Strains
Sensi Seeds
Original Strains
Original Strains
Original Strains
DJ Short
SubCools The Dank
Unknown or Legendary
Clone Only Strains
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Original Strains
Original Strains
Unknown or Legendary
SubCools The Dank
SubCools The Dank
Original Strains
Original Strains
Sensi Seeds
The Seed Bank
The Seed Bank
The Seed Bank
The Seed Bank
Cultivators Choice
BC Growers Association
Unknown or Legendary
Original Strains
Brothers Grimm
Unknown or Legendary
Sensi Seeds
Original Strains
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Sensi Seeds
Growing Blunt Force Trauma: 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 Birthday Cake Kush or 9lb Hammer 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.
Blunt Force Trauma FAQ
How long does Blunt Force Trauma take to flower?
Blunt Force Trauma 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 Blunt Force Trauma an indica or a sativa?
Blunt Force Trauma is listed as indica/sativa.
What are the parents of Blunt Force Trauma?
Blunt Force Trauma was bred from Birthday Cake Kush × 9lb Hammer by GK Genetics.
What environment does Blunt Force Trauma 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 Blunt Force Trauma and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing Blunt Force Trauma? 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.