Sour Blue Cookies by Riot Seeds

Sour Blue Cookies strain photo
Type indica/sativaFlower ±63 daysCross Casey Jones × Girl Scout Cookies

Sour Blue Cookies lands on the indica-leaning side of the spectrum, Riot Seeds's take on the Casey Jones × Girl Scout Cookies line. Indoors it typically finishes flowering in around 63 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Sour Blue Cookies grows against.

🌿 Start a Sour Blue Cookies journal — free →

Similar strains

Devilsfood CookiesRiot Seeds · ±63 daysBubblegum CookiesRiot Seeds · ±60 daysChocolate Chip CookiesRiot Seeds · ±67 daysSour Pineapple CookiesRiot SeedsPlatinum Banana CookiesRiot Seeds · ±70 daysGirl Scout CookiesRiot Seeds · ±67 daysBlueberry Birthday CakeBakery Genetics · ±63 daysBlueberry Cake DonutzSalve My Body · ±63 daysChemdogGreen House · ±63 daysChemmy JonesConnoisseur Genetics · ±63 daysChempie x Black DominaRipper Seeds · ±63 daysCherrieZDankensteins Lab · ±63 daysAll Riot Seeds →
BreederRiot Seeds
Typeindica/sativa
Flowering time±63 days
EnvironmentOutdoors
LineageCasey Jones × Girl Scout Cookies

🌱 Get Sour Blue Cookies seeds →
Affiliate link — supports Cultivar at no cost to you.

🧬 Explore the family: Casey Jones · Girl Scout Cookies

Ancestry Pedigree

Casey Jones
The Devils Harvest
Casey Jones
Head Seeds
Oriental Express
Nectar Seeds
Trainwreck
Clone Only Strains
USA Hybrid
Original Strains
Thailand Hybrid
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
Chemdog
Unknown or Legendary
Indica Sativa
Original Strains
DNL
Unknown or Legendary
RFK
Unknown or Legendary
Skunk
Unknown or Legendary
Skunk Nr1
Cultivators Choice
Northern Lights
Unknown or Legendary
Purest Indica
Clone Only Strains
Double Sour Diesel
Reservoir Seeds
Sour Diesel
Unknown or Legendary
NYC Diesel
Soma Seeds
Unknown Strain
Original Strains
Afghani Hawaiian
Mr Nice Seedbank
Afghani
Unknown or Legendary
Hawaii Hybrid
Original Strains
Girl Scout Cookies
Clone Only Strains
F1 Durban
Unknown or Legendary
F1
Unknown or Legendary
Unknown Strain
Original Strains
Durban Poison
Unknown or Legendary
South Africa Sativa
Original Strains
OG Kush
Clone Only Strains
Unknown Strain
Original Strains
Hindu Kush Indica
Original Strains

Growing Sour Blue Cookies: 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 Casey Jones or Girl Scout Cookies 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 Blue Cookies FAQ

How long does Sour Blue Cookies take to flower?

Sour Blue Cookies typically flowers in around 63 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Sour Blue Cookies an indica or a sativa?

Sour Blue Cookies is listed as indica/sativa.

What are the parents of Sour Blue Cookies?

Sour Blue Cookies was bred from Casey Jones × Girl Scout Cookies by Riot Seeds.

What environment does Sour Blue Cookies 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.

📷 Growing Sour Blue Cookies and something looks off? Free AI photo diagnosis →

Facts compiled from public breeder listings. Growing Sour Blue Cookies? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

Suggest an edit for Sour Blue Cookies

Track your own grow free — the journal grades your environment against these bands →

Get the one-page grow reference card

VPD, pH by medium, deficiency symptoms and dry/cure targets on a single printable page. Free — plus the occasional grow-data breakdown. No spam, unsubscribe in one click.

Or just open the card now — no email needed →

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.