Sweet and Sour Chem by Thunderfudge

Type indica/sativaFlower ±67 daysCross Sour Larry × Ultra Chem SFV

Sweet and Sour Chem, from breeder Thunderfudge, is an indica-leaning strain descended from Sour Larry × Ultra Chem SFV. Indoors it typically finishes flowering in around 67 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Sweet and Sour Chem grows against.

🌿 Start a Sweet and Sour Chem journal — free →

Similar strains

Ultimate Lemon BubbaThunderfudge · ±65 daysSour Larry BX2Thunderfudge · ±67 daysUltrabriteThunderfudge · ±74 daysUltimate Chem 818Thunderfudge · ±74 daysSour Larry BX1Thunderfudge · ±65 daysSuper Lemon DawgfighterThunderfudge · ±67 daysBlueberry FreezeMasonrie Genetics · ±67 daysChemlatto 33707 Seed Bank · ±67 daysCherry LouisMasonrie Genetics · ±67 daysChief HosaCannarado Genetics · ±67 daysChocolate Chip CookiesRiot Seeds · ±67 daysCitradelic SunsetEthos Genetics · ±67 daysAll Thunderfudge →
BreederThunderfudge
Typeindica/sativa
Flowering time±67 days
EnvironmentOutdoors
LineageSour Larry × Ultra Chem SFV

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

🧬 Explore the family: Sour Larry · Ultra Chem SFV

Ancestry Pedigree

Sour Larry
Unknown or Legendary
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
Lemon Larry
Unknown or Legendary
Ultra Chem SFV
Unknown or Legendary
Chem Dawg
Unknown or Legendary
SFV OG
Clone Only Strains
OG Kush
Clone Only Strains

Growing Sweet and Sour 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 Sour Larry or Ultra Chem SFV 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.

Sweet and Sour Chem FAQ

How long does Sweet and Sour Chem take to flower?

Sweet and Sour Chem typically flowers in around 67 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Sweet and Sour Chem an indica or a sativa?

Sweet and Sour Chem is listed as indica/sativa.

What are the parents of Sweet and Sour Chem?

Sweet and Sour Chem was bred from Sour Larry × Ultra Chem SFV by Thunderfudge.

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

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

Suggest an edit for Sweet and Sour 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.