Blue OG by G13 Labs
Blue OG, from breeder G13 Labs, is an indica-leaning strain descended from Blue Moonshine × OG Kush. Indoors it typically finishes flowering in around 53 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Blue OG grows against.
🌿 Start a Blue OG journal — free →
Similar strains
| Breeder | G13 Labs |
|---|---|
| Type | mostly indica |
| Flowering time | ±53 days |
| Environment | Outdoors |
| Lineage | Blue Moonshine × OG Kush |
| Descendants | Southern Comfort |
🌱 Get Blue OG seeds →
Affiliate link — supports Cultivar at no cost to you.
🧬 Explore the family: Blue Moonshine · OG Kush · Southern Comfort
Ancestry Pedigree
DJ Short
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
Clone Only Strains
Original Strains
Original Strains
Growing Blue 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 Blue Moonshine or OG Kush 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.
Blue OG FAQ
How long does Blue OG take to flower?
Blue OG typically flowers in around 53 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Blue OG an indica or a sativa?
Blue OG is listed as mostly indica.
What are the parents of Blue OG?
Blue OG was bred from Blue Moonshine × OG Kush by G13 Labs.
What environment does Blue 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 Blue OG and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing Blue 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.