DTC99 by Brothers Grimm

DTC99 strain photo
Type mostly sativaFlower ±60 daysCross Durban Thai Highflyer × Cinderella 99

Any time Brothers Grimm drops something, the old heads pay attention, and DTC99 (or DTC-99) is exactly why. This sativa-dominant beast is a cross of the legendary Durban Thai Highflyer and their iconic Cinderella 99. The Highflyer itself is an old-school Super Sativa Seed Club marvel—a mix of a sweet Thai female and a Durban Poison male. By hitting that with C99, Brothers Grimm essentially built a time machine back to the golden era of soaring, psychedelic sativas, but managed to wrestle the flowering time down to a very manageable 60 days. You just don't see that kind of speed paired with this specific type of high anymore.

In the garden, DTC99 is a serious structural powerhouse. Growers consistently talk about its incredibly sturdy branches and the massive, resin-dripping colas it produces. You don't have to support the branches like you do with a lot of lanky sativas because it builds these thick, rigid stalks. The terpene profile is totally unique, too. It pushes out this wild mix of musky incense, heavy black licorice, and a tart, almost sharp fruity sweetness. If you crack a jar of a properly cured pheno, it smells like an esoteric spice market mixed with a candy store.

But the real magic happens when you actually smoke it. The forum guys always call it "the working man’s weed" because the high is just perfectly functional. It hits you with this massive wave of creative, uplifting energy that clears the fog out of your head without tipping you into anxiety. You can smoke a joint of this with your morning coffee and actually go build a shed or write ten pages. It’s rare to find a strain that gives you such a pronounced cerebral rush while still keeping your feet planted firmly on the ground. Absolute legendary genetics.

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Similar strains

Cinderella 99 2016Brothers Grimm · ±55 daysCinderella XXBrothers Grimm · ±60 daysApollo 11Brothers Grimm · ±59 daysBrothers Grimm - Durban x C99Brothers GrimmGrimm GlueBrothers Grimm · ±60 daysRosetta Stone XXBrothers Grimm · ±67 daysAuto WinWeed CBDMr. Hide · ±60 daysChemodo DragonColorado Seed · ±60 daysChemodo Dragon #9 BXColorado Seed · ±60 daysChocolate HazeMr. Natural Seeds · ±60 daysCinnamonGoldenseed · ±60 daysClementineCrockett · ±60 daysAll Brothers Grimm →
BreederBrothers Grimm
Typemostly sativa
Flowering time±60 days
EnvironmentOutdoors
LineageDurban Thai Highflyer × Cinderella 99
DescendantsDutchgrown Seeds - Magenta99, Thai Dragon 99, Durban Thainapple Zmartiez, Xanadu, Bottle Rocket, Abyss99

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🧬 Explore the family: Cinderella 99 · Dutchgrown Seeds - Magenta99 · Thai Dragon 99 · Durban Thainapple Zmartiez · Xanadu · Bottle Rocket · Abyss99

Ancestry Pedigree

Durban Thai Highflyer
Super Sativa Seed Club
Thailand Sativa
Original Strains
Durban
Super Sativa Seed Club
Africa Sativa
Original Strains
Cinderella 99
Brothers Grimm
Princess
Unknown or Legendary
Jack Herer
Sensi Seeds
Northern Lights Nr5
The Seed Bank
USA Mostly Indica
Original Strains
Original Haze
Cultivators Choice
Haze
Unknown or Legendary
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
Thailand Sativa
Original Strains
India Sativa
Original Strains
Unknown Strain
Original Strains
P94
Unknown or Legendary
Princess
Unknown or Legendary
Cinderella 88
Unknown or Legendary
Princess
Unknown or Legendary
P75
Unknown or Legendary
Princess
Unknown or Legendary
P50
Unknown or Legendary
Princess
Unknown or Legendary
Shiva Skunk
Sensi Seeds

Growing DTC99: 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 Durban Thai Highflyer or Cinderella 99 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.

DTC99 FAQ

How long does DTC99 take to flower?

DTC99 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 DTC99 an indica or a sativa?

DTC99 is listed as mostly sativa.

What are the parents of DTC99?

DTC99 was bred from Durban Thai Highflyer × Cinderella 99 by Brothers Grimm.

What environment does DTC99 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 DTC99? 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.