OG13 by G13 Labs

OG13 strain photo
Type indica/sativaFlower ±55 daysCross Thailand Sativa × Pakistan Indica

A indica-leaning cross of Thailand Sativa × Pakistan Indica, OG13 — released by G13 Labs — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 55 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real OG13 grows against.

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BreederG13 Labs
Typeindica/sativa
Flowering time±55 days
EnvironmentOutdoors
LineageThailand Sativa × Pakistan Indica

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🧬 Explore the family: Thailand Sativa · Pakistan Indica

Ancestry Pedigree

Thailand Sativa
Original Strains
Pakistan Indica
Original Strains
NYC Diesel
Soma Seeds
Sour Diesel
Unknown or Legendary
Original Diesel
Unknown or Legendary
MassSuperSkunk
Unknown or Legendary
Super Skunk
Sensi Seeds
Skunk Nr1
Sensi Seeds
Skunk Nr1
The Seed Bank
Skunk Nr1
Cultivators Choice
Afghanistan Indica
Original Strains
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
Afghanistan Indica
Original Strains
Chem Dawg
Unknown or Legendary
Indica
Original Strains
DNL
Unknown or Legendary
RFK
Unknown or Legendary
Skunk
Unknown or Legendary
Skunk Nr1
Cultivators Choice
Northern Lights
Unknown or Legendary
Afghani Hawaiian
Unknown or Legendary
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
Hawaii Hybrid
Original Strains

Growing OG13: 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 Thailand Sativa or Pakistan Indica 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.

OG13 FAQ

How long does OG13 take to flower?

OG13 typically flowers in around 55 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is OG13 an indica or a sativa?

OG13 is listed as indica/sativa.

What are the parents of OG13?

OG13 was bred from Thailand Sativa × Pakistan Indica by G13 Labs.

What environment does OG13 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.

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Facts compiled from public breeder listings. Growing OG13? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

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Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.