BlueJ by Geek Farms
Growers reach for BlueJ as a sativa-leaning option, a cross of Jillybean × Oregon Blues out of Geek Farms. 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 BlueJ grows against.
🌿 Start a BlueJ journal — free →
Similar strains
| Breeder | Geek Farms |
|---|---|
| Type | mostly sativa |
| Flowering time | ±60 days |
| Environment | Outdoors, Greenhouse |
| Lineage | Jillybean × Oregon Blues |
| Descendants | River Song |
🌱 Get BlueJ seeds →
Affiliate link — supports Cultivar at no cost to you.
🧬 Explore the family: Jillybean · Oregon Blues · River Song
Ancestry Pedigree
MzJill Genetics
Unknown or Legendary
Unknown or Legendary
Cultivators Choice
Original Strains
Original Strains
Original Strains
Original Strains
BC Growers Association
Unknown or Legendary
Original Strains
Brothers Grimm
Unknown or Legendary
Sensi Seeds
The Seed Bank
Clone Only Strains
Unknown or Legendary
Original Strains
Original Strains
Cultivators Choice
Unknown or Legendary
Original Strains
Original Strains
Original Strains
Original Strains
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
Homegrown Natural Wonders
Unknown or Legendary
Soma Seeds
Original Strains
Unknown or Legendary
Unknown or Legendary
Original Strains
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Original Strains
Original Strains
Unknown or Legendary
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
Unknown or Legendary
Original Strains
Unknown or Legendary
Growing BlueJ: what to expect
As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Jillybean or Oregon Blues 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.
BlueJ FAQ
How long does BlueJ take to flower?
BlueJ 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 BlueJ an indica or a sativa?
BlueJ is listed as mostly sativa.
What are the parents of BlueJ?
BlueJ was bred from Jillybean × Oregon Blues by Geek Farms.
What environment does BlueJ 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 BlueJ and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing BlueJ? 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.