Sour Dragon by Amadeus Genetics

Sour Dragon strain photo
Type mostly sativaFlower ±55 daysCross Master Thais Green Dragon × Sour Blue Thai

A sativa-leaning cross of Master Thais Green Dragon × Sour Blue Thai, Sour Dragon — released by Amadeus Genetics — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 55 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Sour Dragon grows against.

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BreederAmadeus Genetics
Typemostly sativa
Flowering time±55 days
EnvironmentOutdoors
LineageMaster Thais Green Dragon × Sour Blue Thai

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🧬 Explore the family: Sour Blue Thai

Ancestry Pedigree

Master Thais Green Dragon
Master Thai
Victor Baarn
Super Sativa Seed Club
Indica
Original Strains
Indica
Original Strains
Sour Blue Thai
Master Thai
Tahoe Blue Classic
Master Thai
Blueberry
DJ Short
Blueberry Line
Unknown or Legendary
Temple Flo
DJ Short
Floral Line
Unknown or Legendary
Purple Thai
Unknown or Legendary
Highland Oxacan Gold
Unknown or Legendary
Mexico Sativa
Original Strains
Chocolate Thai
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
HTAF
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Tahoe Gold
Master Thai
Skunk
Unknown or Legendary
Skunk Nr1
Cultivators Choice
Hindu Kush Indica
Original Strains
Love Sic Nr1
Master Thai
Colombian Gold
Unknown or Legendary
Colombia Sativa
Original Strains
Colombia Hybrid
Original Strains
Oakland Indica Hybrid
Super Sativa Seed Club
USA Indica
Original Strains
Victor Baarn
Super Sativa Seed Club

Growing Sour Dragon: 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 Master Thais Green Dragon or Sour Blue Thai 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 Dragon FAQ

How long does Sour Dragon take to flower?

Sour Dragon typically flowers in around 55 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Sour Dragon an indica or a sativa?

Sour Dragon is listed as mostly sativa.

What are the parents of Sour Dragon?

Sour Dragon was bred from Master Thais Green Dragon × Sour Blue Thai by Amadeus Genetics.

What environment does Sour Dragon 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 Sour Dragon? 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.