Grenadine by Dr. Greenthumb

Grenadine strain photo
Type mostly indicaFlower ±50 daysCross Niagara × G-13

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Grenadine, from breeder Dr. Greenthumb, is an indica-leaning strain descended from Niagara × G-13. Indoors it typically finishes flowering in around 50 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Grenadine grows against.

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Similar strains

G13Dr. Greenthumb · ±63 daysEndless SkyDr. Greenthumb · ±44 daysNiagara x ShivaDr. Greenthumb · ±50 daysMillennium BudDr. Greenthumb · ±50 daysIranian ChemdawgDr. Greenthumb · ±60 daysOh! ZoneDr. Greenthumb · ±55 daysCouch PotatoGonzo Seeds · ±50 daysCouchlockBC Seed Co. · ±50 daysCritical DPDopamine Seeds · ±50 daysCritical MassZoo Seeds · ±50 daysDame BlancheFlying Dutchmen · ±50 daysDanish PassionZenseeds · ±50 daysAll Dr. Greenthumb →
BreederDr. Greenthumb
Typemostly indica
Flowering time±50 days
EnvironmentOutdoors
LineageNiagara × G-13

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🧬 Explore the family: Niagara · G-13

Ancestry Pedigree

Niagara
Dr Greenthumb
Mostly Sativa
Original Strains
G-13
Unknown or Legendary
Indica
Original Strains

Growing Grenadine: 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 Niagara or G-13 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.

Grenadine FAQ

How long does Grenadine take to flower?

Grenadine typically flowers in around 50 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Grenadine an indica or a sativa?

Grenadine is listed as mostly indica.

What are the parents of Grenadine?

Grenadine was bred from Niagara × G-13 by Dr. Greenthumb.

What environment does Grenadine 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 Grenadine? 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.