Sour Power by HortiLab

Sour Power strain photo
Type mostly sativaFlower ±70 daysTHC 20.50%Cross Starbud × Sour Diesel IBL

Bred by HortiLab from Starbud × Sour Diesel IBL, Sour Power is a sativa-leaning cannabis variety. Indoors it typically finishes flowering in around 70 days after the flip to 12/12. Reported THC is 20.50% with CBD at 0.20%. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Sour Power grows against.

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Similar strains

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BreederHortiLab
Typemostly sativa
Flowering time±70 days
THC20.50%
CBD0.20%
EnvironmentIndoors
LineageStarbud × Sour Diesel IBL
DescendantsTwisty Treat Seeds - Esmeralda, Sour Power OG, Don Limon

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🧬 Explore the family: Starbud · Sour Diesel IBL · Twisty Treat Seeds - Esmeralda · Sour Power OG · Don Limon

Ancestry Pedigree

Starbud
HortiLab
USA Indica
Original Strains
Sour Diesel IBL
Reservoir 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
NYC Diesel
Soma Seeds
Sour Diesel
Unknown or Legendary
Afghani Hawaiian
Unknown or Legendary
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
Hawaii Hybrid
Original Strains

Growing Sour Power: what to expect

As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Starbud or Sour Diesel IBL 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.

Sour Power FAQ

How long does Sour Power take to flower?

Sour Power typically flowers in around 70 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Sour Power an indica or a sativa?

Sour Power is listed as mostly sativa.

What are the parents of Sour Power?

Sour Power was bred from Starbud × Sour Diesel IBL by HortiLab.

How strong is Sour Power?

Reported THC for Sour Power is 20.50% and CBD 0.20%. Actual potency depends heavily on environment, harvest ripeness, and cure quality.

What environment does Sour Power 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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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.