Chemdog dd by Unknown or Legendary

Chemdog dd strain photo
Type mostly indicaCross Chemdog × Sour Diesel IBL

The whole Chemdog lineage is a rabbit hole of forum drama and legendary bagseeds, but Chemdog DD—or Chem DD—holds a very specific, revered spot in the culture. Created by Rezdog back around 2007, this cross took the elite Chem D mother and smashed it into his famous Sour Diesel IBL male. The goal was simple but ambitious: capture the raunchy, garlic-halitosis funk of the original Chem D and pump it full of that astringent, lingering Sour Diesel fuel. It wasn’t just another Chem cross; it was a foundational building block for modern gas strains.

If you were lurking on ICMag when these beans first dropped, you know it was a serious hunt. Popping Chem DD wasn't for beginners because the genetic variation in those early packs was wild. You had to wade through some finicky, stretchy plants to find the true keepers. But man, when you found that one phenotype that perfectly blended the chemical bite of the mother with the diesel backend of the father, you held onto that cut for life. Top Dawg’s JJ-NYC used the Chem D lines extensively, and the DD lineage became crucial for guys wanting to breed raw, unadulterated potency back into their rooms.

Unfortunately, the original Sour Diesel IBL male Rez used was eventually lost, making true, first-generation Chem DD a relic of a bygone era. Later remakes popped up, but purists will always argue about which version was the most authentic. To this day, a properly dialed-in jar of Chem DD is considered the absolute peak of fuel-forward cannabis—the kind of smoke that stinks up an entire city block the second you crack the lid.

🌿 Start a Chemdog dd journal — free →

Similar strains

303 OGUnknown or LegendaryDogwalker OGUnknown or LegendaryGas Leak OGUnknown or Legendary · ±60 daysGuava ChemUnknown or LegendaryChemDUnknown or LegendaryChemdog 99Unknown or LegendaryAuto AnonyMASSCritical Mass Collective · ±75 daysAuto Candy CreamyPanoramix Genetics · ±77 daysAuto CriticalSeedmakers · ±65 daysAuto Cream MassMr. Hide · ±60 daysAuto Critical XXLApex Seeds · ±69 daysAuto Diesel MassMr. Hide · ±55 daysAll Unknown or Legendary →
BreederUnknown or Legendary
Typemostly indica
EnvironmentIndoors, Outdoors
LineageChemdog × Sour Diesel IBL
DescendantsSVU, X-Dog, Green Beanz Seeds - Chem DD F2, Dawg Poo F2, Chem Star Diesel, Atomic Jukebox, Chem DD x Star Dawg, MangoDog, Chem 4 DD

🌱 Get Chemdog dd seeds →
Affiliate link — supports Cultivar at no cost to you.

🧬 Explore the family: Chemdog · Sour Diesel IBL · SVU · X-Dog · Green Beanz Seeds - Chem DD F2 · Dawg Poo F2 · Chem Star Diesel · Atomic Jukebox · Chem DD x Star Dawg · MangoDog

Ancestry Pedigree

Chemdog
Unknown or Legendary
Indica Sativa
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
Afghanistan Indica
Original Strains
Chemdog
Unknown or Legendary
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

Growing Chemdog dd: 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 Chemdog 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.

Chemdog dd FAQ

Is Chemdog dd an indica or a sativa?

Chemdog dd is listed as mostly indica.

What are the parents of Chemdog dd?

Chemdog dd was bred from Chemdog × Sour Diesel IBL by Unknown or Legendary.

What environment does Chemdog dd 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 Chemdog dd and something looks off? Free AI photo diagnosis →

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

Suggest an edit for Chemdog dd

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.