Project 13 by TreeTown Seeds

Project 13 strain photo
Type indica/sativaFlower ±60 daysCross Harlequin × Cherry AK47

Project 13, from breeder TreeTown Seeds, is an indica-leaning strain descended from Harlequin × Cherry AK47. 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 Project 13 grows against.

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BreederTreeTown Seeds
Typeindica/sativa
Flowering time±60 days
EnvironmentOutdoors
LineageHarlequin × Cherry AK47
DescendantsSour Cherry, Melon Patch, Project 13 F2, Quartz Rock

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🧬 Explore the family: Harlequin · Cherry AK47 · Sour Cherry · Melon Patch · Project 13 F2 · Quartz Rock

Ancestry Pedigree

Harlequin
Clone Only Strains
Colombian Gold
Unknown or Legendary
Colombia Sativa
Original Strains
Colombia Hybrid
Original Strains
Thailand Sativa
Original Strains
Swizerland Sativa
Original Strains
Nepal Indica
Original Strains
Cherry AK47
Unknown or Legendary
AK47
Serious Seeds
Colombia Sativa
Original Strains
Mexico Sativa
Original Strains
Thailand Sativa
Original Strains
Afghanistan Indica
Original Strains

Growing Project 13: 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 Harlequin or Cherry AK47 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.

Project 13 FAQ

How long does Project 13 take to flower?

Project 13 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 Project 13 an indica or a sativa?

Project 13 is listed as indica/sativa.

What are the parents of Project 13?

Project 13 was bred from Harlequin × Cherry AK47 by TreeTown Seeds.

What environment does Project 13 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 Project 13? 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.