White Chem by Mephisto Genetics

Type ruderalis/indica/sativaFlower ±75 daysCross Walter White × Chemdogging

White Chem, from breeder Mephisto Genetics, is an indica-leaning strain descended from Walter White × Chemdogging. Indoors it typically finishes flowering in around 75 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real White Chem grows against.

🌿 Start a White Chem journal — free →

Similar strains

The White TrainMephisto Genetics · ±75 daysWhite TriangleMephisto Genetics · ±75 daysCreme De La ChemMephisto Genetics · ±68 daysHeisenberg SpecialMephisto Genetics · ±70 daysFugue StateMephisto Genetics · ±73 daysCosmic QueenMephisto Genetics · ±84 daysAuto AK XXLOriginal Sensible Seeds · ±75 daysAuto Big Devil KissBulk Seed Bank · ±75 daysAuto BlueSeedsman · ±75 daysAuto Bruce Banner207 Genetics · ±75 daysAuto Bud CannonShort Stuff · ±75 daysAuto Caramel KingBulk Seed Bank · ±75 daysAll Mephisto Genetics →
BreederMephisto Genetics
Typeruderalis/indica/sativa
Flowering time±75 days
EnvironmentOutdoors
LineageWalter White × Chemdogging

🌱 Get White Chem seeds →
Affiliate link — supports Cultivar at no cost to you.

🧬 Explore the family: Walter White · Chemdogging

Ancestry Pedigree

Walter White
Mephisto Genetics
The White
Clone Only Strains
Indica Sativa
Original Strains
Ruderalis
Original Strains
Chemdogging
Mephisto Genetics
Mostly Sativa
Original Strains
ChemD
Unknown or Legendary
Chemdog
Unknown or Legendary
Indica Sativa
Original Strains

Growing White Chem: 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 Walter White or Chemdogging 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.

White Chem FAQ

How long does White Chem take to flower?

White Chem typically flowers in around 75 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is White Chem an indica or a sativa?

White Chem is listed as ruderalis/indica/sativa.

What are the parents of White Chem?

White Chem was bred from Walter White × Chemdogging by Mephisto Genetics.

What environment does White Chem 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 White Chem and something looks off? Free AI photo diagnosis →

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

Suggest an edit for White Chem

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.