Sweet Tart by Twisty Seeds

Sweet Tart strain photo
Type indica/sativaFlower ±60 daysCross Purple Thai × Afghani

Sweet Tart, from breeder Twisty Seeds, is an indica-leaning strain descended from Purple Thai × Afghani. 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 Sweet Tart grows against.

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BreederTwisty Seeds
Typeindica/sativa
Flowering time±60 days
EnvironmentOutdoors
LineagePurple Thai × Afghani

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🧬 Explore the family: Purple Thai · Afghani

Ancestry Pedigree

Purple Thai
Unknown or Legendary
Highland Oxacan Gold
Unknown or Legendary
Mexico Sativa
Original Strains
Chocolate Thai
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
Alaskan Thunder Fuck
Twisty Seeds
Sativa
Original Strains
Matanuska Thunderfuck
Unknown or Legendary
Indica
Original Strains

Growing Sweet Tart: 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 Purple Thai or Afghani 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.

Sweet Tart FAQ

How long does Sweet Tart take to flower?

Sweet Tart 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 Sweet Tart an indica or a sativa?

Sweet Tart is listed as indica/sativa.

What are the parents of Sweet Tart?

Sweet Tart was bred from Purple Thai × Afghani by Twisty Seeds.

What environment does Sweet Tart 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 Sweet Tart? 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.