Old School Jams by Apothecary Genetics

Old School Jams strain photo
Type mostly indicaFlower ±56 daysCross Grape Ape × Joes OG Kush

Old School Jams lands on the indica-leaning side of the spectrum, Apothecary Genetics's take on the Grape Ape × Joes OG Kush line. Indoors it typically finishes flowering in around 56 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Old School Jams grows against.

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BreederApothecary Genetics
Typemostly indica
Flowering time±56 days
EnvironmentOutdoors
LineageGrape Ape × Joes OG Kush
DescendantsOl' Blue, Old Goat

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🧬 Explore the family: Grape Ape · Ol' Blue · Old Goat

Ancestry Pedigree

Grape Ape
Apothecary Genetics
Grand Daddy Purple
Unknown or Legendary
Skunk
Unknown or Legendary
Skunk Nr1
Cultivators Choice
Afghanistan Indica
Original Strains
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
Mendo Purps
Unknown or Legendary
USA Mostly Indica
Original Strains
Joes OG Kush
Unknown or Legendary
SFV OG
Clone Only Strains
OG Kush
Clone Only Strains
Thailand Sativa
Original Strains
Chem Dawg
Unknown or Legendary
Indica
Original Strains
SFV OG
Clone Only Strains

Growing Old School Jams: 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 Grape Ape or Joes 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.

Old School Jams FAQ

How long does Old School Jams take to flower?

Old School Jams typically flowers in around 56 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Old School Jams an indica or a sativa?

Old School Jams is listed as mostly indica.

What are the parents of Old School Jams?

Old School Jams was bred from Grape Ape × Joes OG Kush by Apothecary Genetics.

What environment does Old School Jams 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 Old School Jams? 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.